NCV7705DQR2G [ONSEMI]

Mirror-Module Driver-IC;
NCV7705DQR2G
型号: NCV7705DQR2G
厂家: ONSEMI    ONSEMI
描述:

Mirror-Module Driver-IC

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中文:  中文翻译
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NCV7705, NCV7706  
Mirror-Module Driver-IC  
The NCV7705/NCV7706 is a powerful Driver−IC for automotive  
body control systems. The IC is designed to control several loads in  
the front door of a vehicle. The monolithic IC is able to control mirror  
functions like mirror positioning, heating and folding. In addition,  
NCV7706 includes the electro−chromic mirror feature. The device  
features four high−side outputs to drive LEDs or incandescent bulbs  
(up to 5/10 W). To allow maximum flexibility, all lighting outputs can  
be PWM controlled thru PWM inputs (external signal source) or by an  
internal programmable PWM generator unit. The  
NCV7705/NCV7706 is controlled thru a 24 bit SPI interface with  
in−frame response.  
www.onsemi.com  
SSOP36 EP  
DQ SUFFIX  
CASE 940AB  
Features  
Operating Range from 5.5 V to 28 V  
MARKING DIAGRAM  
Four High−Side and Four Low−Side Drivers Connected as  
Half−Bridges  
2x Half−bridges I  
2x Half−Bridges I  
= 0.75 A; R  
= 1.6 W @ 25°C  
DS(on)  
load  
= 3 A; R  
= 300 mW @ 25°C  
load  
DS(on)  
NCV770x  
AWLYYWWG  
Four High−Side Lamp Drivers  
2x LED; I = 0.3 A; R  
= 1.4 W @ 25°C  
DS(on)  
load  
1x 10 W; Configurable as LED Driver; I  
= 2.5 A;  
load  
R
= 300 mW @ 25°C  
DS(on)  
1x 5 W; Configurable as LED Driver; I  
= 1.25 A;  
= 6 A;  
NCV770x = Specific Device Code  
NCV770x = (x = 5 or 6)  
load  
R
= 600 mW @ 25°C  
DS(on)  
A
= Assembly Location  
= Wafer Lot  
1x High−Side Driver for Mirror Heating; I  
load  
WL  
YY  
WW  
G
R
= 100 mW @ 25°C  
DS(on)  
= Year  
= Work Week  
= Pb−Free Package  
Electro Chromic Mirror Control (NCV7706 Only)  
1x 6−Bit Selectable Output Voltage Controller  
1x LS for EC Control; I  
= 0.75 A; R  
= 1.6 W @ 25°C  
load  
DS(on)  
ORDERING INFORMATION  
Independent PWM Functionality for All Outputs  
Integrated Programmable PWM Generator Unit for All Lamp Driver  
Shipping  
Device  
Package  
Outputs  
SSOP36−EP  
GREEN  
(Pb−Free)  
NCV7705DQR2G  
NCV7706DQR2G*  
1500 / Tape &  
Reel  
7−bit / 10−bit Selectable Duty−cycle Setting Precision  
Programmable Soft−start Function to Drive Loads with Higher  
Inrush Currents as Current Limitation Value  
Multiplex Current Sense Analog Output for Advanced Load  
Monitoring  
†For information on tape and reel specifications,  
including part orientation and tape sizes, please  
refer to our Tape and Reel Packaging Specification  
Brochure, BRD8011/D.  
Very Low Current Consumption in Standby Mode  
* Contact local sales office for availability  
Charge Pump Output to Control an External Reverse Polarity  
Protection MOSFET  
24−Bit SPI Interface for Output Control and Diagnostic  
SSOP36−EP Power Package  
This is a Pb−Free Device  
Protection Against Short−circuit, Overvoltage and  
Over−temperature  
Typical Applications  
Downwards Pin−to−Pin and SPI Registers Compatible  
with NCV7707  
AEC−Q100 Qualified and PPAP Compliant  
De−centralized Door Electronic Systems  
Body Control Units (BCUs)  
© Semiconductor Components Industries, LLC, 2016  
1
Publication Order Number:  
NCV7705/D  
January, 2016 − Rev. 0  
NCV7705, NCV7706  
VS  
CHP  
NCV7705/06  
Diagnostic  
short circuit  
openload  
overload  
overtemperature  
overvoltage  
Undervoltage  
Lockout  
Overvoltage  
Lockout  
Poweron Reset  
Chargepump  
VS  
undervoltage  
VCC  
SI  
SCLK  
CSB  
overload  
OUT1  
CONTROL _0 Register  
Driver  
SO  
Interface  
VS  
VS  
CONTROL _1 Register  
CONTROL _2 Register  
CONTROL _3 Register  
PWM_5/6 Register  
OUT2  
OUT3  
VS  
VS  
PWM  
Unit  
OUT4  
PWM_7/8 Register  
STATUS _0 Register  
STATUS _1 Register  
VS  
OUT5  
OUT6  
OUT7  
OUT8  
VS  
VS  
STATUS _2 Register  
CONFIG Register  
VS  
VS  
Special Function Register  
PWM1  
PWM2  
PWM1  
OUT9  
OUT9  
ISOUT/  
PWM2  
MUX  
GND  
ECON  
ECFB  
DAC  
EC Control  
6
NCV7706 only  
Figure 1. Block Diagram  
www.onsemi.com  
2
NCV7705, NCV7706  
footstep  
light  
safety  
light  
10W  
/LED  
OUT6  
safety  
light  
Vbat  
blinker  
LED  
OUT8  
LED  
5W  
Switches  
VS  
/LED  
OUT7  
OUT5  
CHP  
NCV7705/06  
HighSide HighSide  
HighSide  
Switch  
HighSide  
Switch  
Ω)  
Charge Pump  
Switch  
Switch  
24bit  
Serial  
Data  
Ω)  
Ω)  
Ω)  
SO  
SI  
(1.4  
(1.4  
(0.3/1.4  
(0.6/1.4  
Poweron Reset  
Interface  
SCLK  
CSB  
Protection :  
short circuit  
open load  
over temperature  
VS undervoltage  
VS overvoltage  
PWM Generator Unit  
Logic Control  
mC  
Logic IN  
PWM1  
Current Sensing  
ISOUT /  
PWM2  
Rs  
GND  
PWM  
HighSide  
Switch  
HighSide  
Switch  
HighSide  
Switch  
HighSide  
Switch  
HighSide  
Switch  
Ω)  
Ω)  
(1.6  
(1.6  
Ω)  
Ω)  
(0.3  
Ω)  
(0.1  
(0.3  
LowSide  
Switch  
LowSide  
Switch  
LowSide  
Switch  
LowSide  
Switch  
LowSide  
Switch  
DAC  
EC Control  
CAN/LIN SBC  
Ω)  
Ω)  
(1.6  
(1.6  
Ω)  
Ω)  
(0.3  
(1.6  
Ω)  
(0.3  
(NCV7462)  
VCC  
OUT4  
OUT3  
OUT2  
ECON  
OUT8  
OUT9  
OUT1  
mirror  
yaxis  
ECFB  
LIN  
mirror  
defroster  
(NCV7321)  
mirror  
xaxis  
mirror  
fold  
CAN  
LIN  
ECM  
NCV7706 only  
Figure 2. Application Diagram  
NCV7705  
NCV7706  
1
36  
1
36  
GND  
GND  
OUT9  
OUT8  
OUT7  
VS  
OUT6  
OUT5  
VS  
VS  
PWM1  
CHP  
VS/TEST  
n.c.  
n.c.  
GND  
OUT9  
OUT1  
OUT2  
OUT3  
GND  
OUT9  
OUT1  
OUT2  
OUT3  
VS  
VS  
SI  
OUT9  
OUT8  
OUT7  
ECFB  
OUT6  
OUT5  
VS  
VS  
VS  
SI  
ISOUT/PWM2  
CSB  
VS  
ISOUT/PWM2  
CSB  
PWM1  
CHP  
ECON  
n.c.  
SO  
SO  
VCC  
SCLK  
n.c.  
VCC  
SCLK  
n.c.  
n.c.  
VS  
n.c.  
OUT4  
n.c.  
VS  
n.c.  
OUT4  
n.c.  
n.c.  
n.c.  
n.c.  
n.c.  
18  
18  
GND  
19  
GND  
GND  
19  
GND  
Figure 3. Pin Connections (Top View)  
www.onsemi.com  
3
NCV7705, NCV7706  
PIN FUNCTION DESCRIPTION  
Pin No.  
Pin Name  
GND  
Pin Type  
Ground  
Description  
1
2
3
4
5
6
7
8
9
Ground Supply (all GND pins have to be connected externally)  
Heater Output (has to be connected externally to pin 35)  
Mirror common Output  
OUT9  
OUT1  
OUT2  
OUT3  
VS  
HS driver Output  
Half bridge driver Output  
Half bridge driver Output  
Half bridge driver Output  
Supply  
Mirror x/y control Output  
Mirror x/y control Output  
Battery Supply Input (all VS pins have to be connected externally)  
Battery Supply Input (all VS pins have to be connected externally)  
SPI interface Serial Data Input  
VS  
Supply  
SI  
Digital Input  
ISOUT/PWM2  
Digital Input /  
Analog Output  
PWM control Input / Current Sense Output. This pin is a bidirectional pin.  
Depending on the selected multiplexer bits, an image of the instant current of  
the corresponding HS stage can be read out.  
This pin can also be used as PWM control input pin for OUT6 and OUT8.  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
CSB  
SO  
Digital Input  
Digital Output  
Supply  
SPI interface Chip Select  
SPI interface Serial Data Output  
VCC  
SCLK  
n.c.  
Logic Supply Input  
Digital Input  
SPI interface Shift Clock  
Not connected  
VS  
Supply  
Battery Supply Input (all VS pins have to be connected externally)  
n.c.  
Not connected  
n.c.  
Not connected  
GND  
GND  
n.c.  
Ground  
Ground  
Ground Supply (all GND pins have to be connected externally)  
Ground Supply (all GND pins have to be connected externally)  
Not connected  
n.c.  
Not connected  
OUT4  
n.c.  
Half bridge driver Output  
Mirror Fold Output  
Not connected  
n.c.  
Not connected  
VS/TEST  
Supply  
Test Input, has to be connected to VS in application  
(NCV7705 only)  
ECON  
(NCV7706 only)  
ECM driver Output  
Electrochromic mirror control DAC output. If the Electrochrome feature is  
selected, this output controls an external Mosfet, otherwise it remains in  
high−impedance state.  
If the electrochrome feature is not used in the application and not selected via  
SPI the pin can be connected to VS.  
26  
27  
28  
29  
30  
31  
32  
CHP  
PWM1  
VS  
Analog Output  
Digital Input  
Supply  
Reverse Polarity FET Control Output  
PWM control Input for OUT1−4, OUT5/7, OUT9  
Battery Supply Input (all VS pins have to be connected externally)  
Battery Supply Input (all VS pins have to be connected externally)  
LED / Bulb Output  
VS  
Supply  
OUT5  
OUT6  
HS driver Output  
HS driver Output  
Supply  
LED / Bulb Output  
VS  
Connect to VS pins externally (no power connection)  
(NCV7705 only)  
ECFB  
ECM Input / Output  
Electrochromic Mirror Feedback Input, Fast discharge transistor Output  
(NCV7706 only)  
33  
34  
35  
36  
OUT7  
OUT8  
HS driver Output  
HS driver Output  
HS driver Output  
Ground  
LED Output  
LED Output  
OUT9  
Heater Output (has to be connected externally to pin 2)  
Ground Supply (all GND pins have to be connected externally)  
Substrate; Heat slug has to be connected to all GND pins  
GND  
Heat slug  
Ground  
www.onsemi.com  
4
NCV7705, NCV7706  
ABSOLUTE MAXIMUM RATINGS  
Symbol  
Rating  
Min  
Max  
Unit  
Vs  
Power supply voltage  
− Continuous supply voltage  
− Transient supply voltage (t < 500 ms, ”clamped load dump”)  
V
−0.3  
−0.3  
28  
40  
V
Logic supply  
−0.3  
−0.3  
−0.3  
5.5  
V
V
V
V
CC  
Vdig  
Visout/pwm2  
Vchp  
DC voltage at all logic pins (SO, SI, SCLK, CSB, PWM1)  
Current monitor output / PWM2 logic input  
Charge pump output (the most stringent value is applied)  
V
V
+ 0.3  
CC  
CC  
+ 0.3  
−25  
40  
Vs − 25  
Vs + 15  
Voutx,  
Vecon, Vecfb  
Static output voltage (OUT1−9, ECON, ECFB)  
OUT1/4 Output current  
−0.3  
Vs + 0.3  
V
A
Iout1/4  
Iout2/3  
Iout5  
− T > 25°C  
−5  
−5.5  
5
5.5  
J
− T < 25°C  
J
OUT2/3 Output current  
A
A
− T > 25°C  
−1.25  
−1.35  
1.35  
1.35  
J
− T < 25°C  
J
OUT5 Output current  
− DC  
− Transient  
−5  
−2.5  
−1.25  
−10  
5
Iout6  
OUT6 Output current  
− DC  
− Transient  
A
2.5  
1.25  
Iout7/8  
Iout9  
OUT7/8 Output current  
− DC  
− Transient  
A
OUT9 Output current  
− DC  
A
− Transient  
10  
Iout_ecfb  
(NCV7706  
only)  
ECFB Output current  
1.25  
A
ESD_HBM  
ESD Voltage, Human Body Model (HBM); (100 pF, 1500 W) (Note 1)  
− All pins  
− Output pins OUT1−4 and ECFB to GND (all unzapped pins grounded)  
kV  
V
−2  
−4  
2
4
ESD_CDM  
ESD according to CDM (Charge Device Model) (Note 1)  
− All pins  
− Corner pins  
−500  
−750  
500  
750  
T
Operating junction temperature range  
Storage temperature range  
−40  
−55  
150  
150  
°C  
°C  
J
Tstg  
MSL  
Moisture sensitivity level (Note 2)  
MSL3  
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality  
should not be assumed, damage may occur and reliability may be affected.  
1. This device series incorporates ESD protection and is tested by the following methods:  
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)  
ESD Charge Device Model tested per EIA/JES D22/C101, Field Induced Charge Model  
2. For soldering information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D  
THERMAL CHARACTERISTICS  
Symbol  
Rating  
Value  
Unit  
R
Thermal Characteristics, SSOP36−EP, 1−layer PCB  
Thermal Resistance, Junction−to−Air (Note 3)  
49.4  
°C/W  
θJA  
R
Thermal Characteristics, SSOP36−EP, 4−layer PCB  
Thermal Resistance, Junction−to−Air (Note 4)  
24  
°C/W  
θJA  
3. Values based on PCB of 76.2 x 114.3 mm, 72 μm copper thickness, 20% copper area coverage and FR4 PCB substrate.  
4. Values based on PCB of 76.2 x 114.3 mm, 72 / 36 μm copper thickness (signal layers / internal planes), 20 / 90% copper area coverage (signal  
layers / internal planes) and FR4 PCB substrate.  
www.onsemi.com  
5
 
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
SUPPLY  
Functional (see V  
Parameter specification  
/ V  
OV_VS  
)
5.5  
8
28  
18  
UV_VS  
Vs  
Supply voltage  
V
Standby mode,  
VS = 16 V, 0 V v V v 5.25 V,  
CC  
Supply Current (VS),  
Standby mode  
Is(standby)  
CSB = V , OUTx/ECx = floating,  
3.5  
(9)  
12  
mA  
CC  
SI = SCLK = 0 V, T < 85°C  
J
(T = 150°C)  
J
(25)  
Active mode,  
VS = 16 V,  
OUTx/ECx = floating  
Supply current (VS),  
Active mode  
Is(active)  
8
20  
mA  
Standby mode,  
Supply Current (VCC),  
Standby mode  
V
CC  
= 5.25 V,  
4.5  
6
I
(standby)  
mA  
CC  
SI = SCLK = 0 V, T < 85°C  
J
(T = 150°C)  
(15)  
(50)  
J
Active mode,  
VS = 16 V,  
OUTx/ECx = floating  
Supply current (VCC),  
Active mode  
I
(active)  
6.5  
8
8
mA  
CC  
Standby mode,  
Total Standby mode supply current  
VS = 16 V, T < 85°C,  
I(standby)  
18  
mA  
J
(Is + I  
)
CC  
CSB = V , OUTx/ECx = floating  
CC  
OVERVOLTAGE AND UNDERVOLTAGE DETECTION  
Vuv_vs(on)  
VS increasing  
5.6  
5.2  
6.2  
5.8  
V
V
V
V
V
V
V
V
V
VS Undervoltage detection  
Vuv_vs(off)  
VS decreasing  
Vuv_vs(hys)  
Vov_vs(off)  
Vov_vs(on)  
Vov_vs(hys)  
Vuv_vcc(off)  
Vuv_vcc(on)  
Vuv_vcc(hys)  
VS Undervoltage hysteresis  
Vuv_vs(on) − Vuv_vs(off)  
VS increasing  
0.65  
2
20  
19  
24.5  
23.5  
VS Overvoltage detection  
VS Overvoltage hysteresis  
VS decreasing  
Vov_vs(off) − Vov_vs(on)  
V
V
V
increasing  
decreasing  
2.9  
CC  
VCC Undervoltage detection  
2
CC  
VCC Undervoltage hysteresis  
VS Undervoltage filter time  
− V  
0.11  
uv_VCC(off)  
uv_VCC(on)  
Time to set the power supply fail bit  
UOV_OC in the Global Status Byte  
td_uv  
td_ov  
6
13  
ms  
ms  
Time to set the power supply fail bit  
UOV_OC in the Global Status Byte  
VS Overvoltage filter time  
50  
100  
CHARGE PUMP OUTPUT CHP  
Vchp8  
Vchp10  
Vchp12  
Ichp  
Chargepump Output Voltage  
Vs = 8 V, Ichp = −60 mA  
Vs + 6  
Vs + 8  
Vs + 9.5 Vs + 13  
Vs + 11 Vs + 13  
V
V
Chargepump Output Voltage  
Chargepump Output Voltage  
Chargepump Output current  
Vs = 10 V, Ichp = −80 mA  
VS > 12 V, Ichp = −100 mA  
VS = 13.5 V, Vchp = Vs + 10 V  
Vs + 9.5 Vs + 11 Vs + 13  
−750 −95  
V
mA  
www.onsemi.com  
6
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
MIRROR COMMON OUTPUT (X/Y, FOLD) OUT1, OUT4  
T = 25°C, Iout1,4 = 1.5 A  
0.3  
J
Ron_out1,4  
On−resistance HS or LS  
W
T = 125°C, Iout1,4 = 1.5 A  
J
0.6  
−3  
T < 25°C  
−5.5  
−5  
J
Ioc1,4_hs  
Ioc1,4_ls  
Overcurrent threshold HS  
Overcurrent threshold LS  
A
A
T 25°C  
J
T < 25°C  
5.5  
5
J
3
T 25°C  
J
Vlim1,4  
Vds voltage limitation HS or LS  
Underload detection threshold HS  
Underload detection threshold LS  
Output delay time, HS Driver on  
Output delay time, HS Driver off  
Output delay time, LS Driver on  
Output delay time, LS Driver off  
2
−80  
5
3
V
mA  
mA  
ms  
Iuld1,4_hs  
−5  
80  
12  
12  
12  
12  
Iuld1,4_ls  
td_HS1,4(on)  
td_HS1,4(off)  
td_LS1,4(on)  
td_LS1,4(off)  
2.5  
3
Time from CSB going high to  
V(OUT1,4) = 0.1·Vs / 0.9·Vs (on/off)  
ms  
1
ms  
Time from CSB going low to  
V(OUT1,4) = 0.9·Vs / 0.1·Vs (on/off)  
1.5  
ms  
Cross conduction protection time,  
low−to−high transition including LS  
slew−rate  
tdLH1,4  
tdHL1,4  
0.5  
5.5  
22  
22  
ms  
ms  
Cross conduction protection time,  
high−to−low transition including HS  
slew−rate  
Output HS leakage current,  
Active mode  
Ileak_act_hs1,4  
Ileak_act_ls1,4  
V(OUT1,4) = 0 V  
V(OUT1,4) = VS  
V(OUT1,4) = 0 V  
−40  
−5  
−16  
105  
mA  
mA  
mA  
mA  
Output pull−down current,  
Active mode  
185  
Output HS leakage current,  
Standby mode  
Ileak_stdby_hs1,4  
Ileak_stdby_ls1,4  
Output pull−down current,  
Standby mode  
V(OUT1,4) = VS, T w 25°C  
120  
175  
J
J
80  
V(OUT1,4) = VS, T < 25°C  
td_uld1,4  
Underload blanking delay  
430  
16  
610  
25  
ms  
ms  
tdb_old1,4  
Overload shutdown blanking delay Timer started after output activation  
Timer started after blanking delay  
td_old1,4  
frec1,4L  
Overload shutdown filter time  
elapsed  
5
1
25  
4
ms  
Recovery frequency, slow recovery  
CONTROL_3.OCRF = 0  
mode  
kHz  
Recovery frequency, fast recovery  
CONTROL_3.OCRF = 1  
mode  
frec1,4H  
dVout1,4  
2
6
kHz  
Slew rate of HS driver  
Vs = 13.5 V, Rload = 16 W to GND  
1.3  
2.3  
3.3  
V/ms  
www.onsemi.com  
7
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
MIRROR X/Y POSITIONING OUTPUTS OUT2, OUT3  
T = 25°C, Iout2,3 = 0.5 A  
1.6  
W
W
J
Ron_out2,3  
On−resistance HS or LS  
T = 125°C, Iout2,3 = 0.5 A  
J
3
T < 25°C  
J
−1.35  
−1.25  
J
Ioc2,3_hs  
Ioc2,3_ls  
Overcurrent threshold HS  
Overcurrent threshold LS  
−0.75  
A
A
T 25°C  
T < 25°C  
1.35  
1.25  
J
0.75  
T 25°C  
J
Vlim2,3  
Vds voltage limitation HS or LS  
Underload detection threshold HS  
Underload detection threshold LS  
Output delay time, HS Driver on  
Output delay time, HS Driver off  
Output delay time, LS Driver on  
Output delay time, LS Driver off  
2
3
−10  
32  
6
V
mA  
mA  
ms  
Iuld2,3_hs  
−32  
10  
−20  
20  
2.5  
3
Iuld2,3_ls  
td_HS2,3(on)  
td_HS2,3(off)  
td_LS2,3(on)  
td_LS2,3(off)  
Time from CSB going high to  
V(OUT2,3) = 0.1·Vs / 0.9·Vs (on/off)  
6
ms  
1
6
ms  
Time from CSB going low to  
V(OUT2,3) = 0.9·Vs / 0.1·Vs (on/off)  
1
6
ms  
Cross conduction protection time,  
low−to−high transition including LS  
slew−rate  
tdLH2,3  
tdHL2,3  
0.5  
5.5  
22  
22  
ms  
ms  
Cross conduction protection time,  
high−to−low transition including HS  
slew−rate  
Output HS leakage current,  
Active mode  
Ileak_act_hs2,3  
Ileak_act_ls2,3  
V(OUT2,3) = 0 V  
V(OUT2,3) = VS  
V(OUT2,3) = 0 V  
−40  
−5  
−16  
105  
mA  
mA  
mA  
Output pull−down current,  
Active mode  
185  
Output HS leakage current,  
Standby mode  
Ileak_stdby_hs2,3  
Ileak_stdby_ls2,3  
Output pull−down current,  
Standby mode  
V(OUT2,3) = VS, T w 25°C  
120  
175  
mA  
mA  
J
J
80  
V(OUT2,3) = VS, T < 25°C  
td_uld2,3  
Underload blanking delay  
430  
16  
610  
25  
ms  
ms  
tdb_old2,3  
Overload shutdown blanking delay Timer started after output activation  
Timer started after blanking delay  
td_old2,3  
frec2,3L  
Overload shutdown filter time  
elapsed  
16  
1
50  
4
ms  
Recovery frequency, slow recovery  
CONTROL_3.OCRF = 0  
mode  
kHz  
Recovery frequency, fast recovery  
CONTROL_3.OCRF = 1  
mode  
frec2,3H  
dVout2,3  
2
6
kHz  
Slew rate of HS driver  
Vs = 13.5 V, Rload = 64 W to GND  
1.3  
2.3  
3.3  
V/ms  
www.onsemi.com  
8
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
0.3  
1.4  
Max  
Unit  
BULB / LED DRIVER OUTPUT OUT5  
T = 25°C, Iout5 = −1 A  
J
On−resistance to supply,  
HS switch, Bulb mode  
Ron_out5_ICB  
Ron_out5_LED  
W
W
T = 125°C, Iout5 = −1 A  
0.6  
J
T = 25°C, Iout5 = −0.2 A  
J
On−resistance to supply,  
HS switch, LED mode  
T = 125°C, Iout5 = −0.2 A  
3
J
Output current limitation to GND,  
Bulb mode  
T < 25°C  
J
−3.9  
−3.7  
J
Ilim5_ICB  
Ilim5_LED  
−2.5  
A
T 25°C  
Overcurrent threshold,  
LED mode  
−1.1  
−65  
−15  
−0.5  
−5  
−5  
48  
A
Underload detection threshold,  
Bulb mode  
Iuld5_ICB  
mA  
mA  
Underload detection threshold,  
LED mode  
Iuld5_LED  
Output delay time, Driver on,  
Bulb mode  
td_OUT5_ICB(on)  
td_OUT5_ICB(off)  
td_OUT5_LED(on)  
td_OUT5_LED(off)  
Ileak_act5  
15  
21  
15  
21  
Time from CSB going high to  
V(OUT5) = 0.1·Vs / 0.9·Vs (on/off);  
Rload = 16 W  
ms  
Output delay time, Driver off,  
Bulb mode  
48  
Output delay time, Driver on,  
LED mode  
48  
Time from CSB going high to  
V(OUT5) = 0.1·Vs / 0.9·Vs (on/off);  
Rload = 64 W  
ms  
Output delay time, Driver off,  
LED mode  
48  
Output leakage current,  
Active mode  
V(OUT5) = 0 V  
−15  
−5  
mA  
Output leakage current, Standby  
mode  
Ileak_stdby5  
Ileak_out_vs5  
td_uld5_ICB  
V(OUT5) = 0 V  
V(OUT5) = VS  
mA  
mA  
ms  
Output leakage current  
1
Underload blanking delay  
Bulb mode  
1350  
430  
200  
100  
200  
50  
1910  
Underload blanking delay  
LED mode  
td_uld5_LED  
tdb_old_ICB5  
td_old_ICB5  
tdb_old_LED5  
td_old_LED5  
frec5L  
610  
290  
160  
290  
100  
2.1  
6
ms  
ms  
Overload shutdown blanking delay,  
Bulb mode  
Timer started after output activation  
Overload shutdown filter time, Bulb Timer started after blanking delay  
mode  
ms  
elapsed  
Overload shutdown blanking delay,  
LED mode  
Timer started after output activation  
ms  
Overload shutdown filter time, LED Timer started after blanking delay  
mode  
ms  
elapsed  
Recovery frequency, slow recovery  
mode recovery  
CONTROL_3.OCRF = 0  
1
kHz  
kHz  
Recovery frequency, fast recovery  
mode (LED mode only)  
frec5H  
CONTROL_3.OCRF = 1  
2
dVout5_ICB  
dVout5_LED  
Slew rate, Bulb mode  
Slew rate, LED mode  
Vs = 13.5 V, Rload = 16 W  
Vs = 13.5 V, Rload = 64 W  
0.22  
0.22  
V/ms  
V/ms  
Slew rate in overcurrent recovery  
mode  
dVout5_ocr  
Vs = 13.5 V, Rload = 16 W  
1
2
3
V/ms  
www.onsemi.com  
9
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
0.6  
1.4  
Max  
Unit  
BULB / LED DRIVER OUTPUT OUT6  
T = 25°C, Iout6 = −0.5 A  
J
On−resistance to supply,  
HS switch, Bulb mode  
Ron_out6_ICB  
Ron_out6_LED  
W
W
T = 125°C, Iout6 = −0.5 A  
1.2  
J
T = 25°C, Iout6 = −0.2 A  
J
On−resistance to supply,  
HS switch, LED mode  
T = 125°C, Iout6 = −0.2 A  
3
J
Output current limitation to GND,  
Bulb mode  
T < 25°C  
J
−1.95  
−1.85  
J
Ilim6_ICB  
Ilim6_LED  
−1.25  
A
T 25°C  
Overcurrent threshold,  
LED mode  
−1.1  
−30  
−15  
−0.5  
−2.5  
−5  
A
Underload detection threshold,  
Bulb mode  
Iuld6_ICB  
mA  
mA  
Underload detection threshold,  
LED mode  
Iuld6_LED  
Output delay time, Driver on,  
Bulb mode  
td_OUT6_ICB(on)  
td_OUT6_ICB(off)  
td_OUT6_LED(on)  
td_OUT6_LED(off)  
Ileak_act6  
15  
21  
15  
21  
48  
Time from CSB going high to  
V(OUT6) = 0.1·Vs / 0.9·Vs (on/off);  
Rload = 16 W  
ms  
Output delay time, Driver off,  
Bulb mode  
48  
Output delay time, Driver on,  
LED mode  
48  
Time from CSB going high to  
V(OUT6) = 0.1·Vs / 0.9·Vs (on/off);  
Rload = 64 W  
ms  
Output delay time, Driver off,  
LED mode  
48  
Output leakage current,  
Active mode  
V(OUT6) = 0 V  
−15  
−5  
mA  
Output leakage current, Standby  
mode  
Ileak_stdy6  
Ileak_out_vs6  
td_uld6_ICB  
V(OUT6) = 0 V  
V(OUT6) = VS  
mA  
mA  
ms  
Output leakage current  
1
Underload blanking delay  
Bulb mode  
1350  
430  
200  
100  
200  
50  
1910  
Underload blanking delay  
LED mode  
td_uld6_LED  
tdb_old_ICB6  
td_old_ICB6  
tdb_old_LED6  
td_old_LED6  
frec6L  
610  
290  
160  
290  
100  
2.1  
6
ms  
ms  
Overload shutdown blanking delay,  
Bulb mode  
Timer started after output activation  
Overload shutdown filter time, Bulb Timer started after blanking delay  
mode  
ms  
elapsed  
Overload shutdown blanking delay,  
LED mode  
Timer started after output activation  
ms  
Overload shutdown filter time, LED Timer started after blanking delay  
mode  
ms  
elapsed  
Recovery frequency, slow recovery  
mode recovery  
CONTROL_3.OCRF = 0  
1
kHz  
kHz  
Recovery frequency, fast recovery  
mode (LED mode only)  
frec6H  
CONTROL_3.OCRF = 1  
2
dVout6_ICB  
dVout6_LED  
Slew rate, Bulb mode  
Slew rate, LED mode  
Vs = 13.5 V, Rload = 16 W  
Vs = 13.5 V, Rload = 64 W  
0.22  
0.22  
V/ms  
V/ms  
Slew rate in overcurrent recovery  
mode  
dVout6_ocr  
Vs = 13.5 V, Rload = 16 W  
1
2
3
V/ms  
www.onsemi.com  
10  
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
LED DRIVER OUTPUTS OUT7, OUT8  
T = 25°C, Iout7,8 = −0.2 A  
1.4  
W
W
J
On−resistance to supply,  
HS switch  
Ron_out7,8  
T = 125°C, Iout7,8 = −0.2 A  
J
3
−0.3  
−4  
Ioc7,8  
Overcurrent threshold  
−0.6  
−18  
A
Iuld7,8  
Underload detection threshold  
Output delay time, Driver on  
Output delay time, Driver off  
mA  
td_OUT7,8(on)  
td_OUT7,8(off)  
48  
Time from CSB going high to  
V(OUT7,8) = 0.1·Vs / 0.9·Vs (on/off)  
ms  
48  
Output leakage current, Active  
mode  
Ileak_act7,8  
V(OUT7,8) = 0 V  
−10  
−5  
18  
23  
mA  
mA  
Output leakage current, Standby  
mode  
Ileak_stdby7,8  
V(OUT7,8) = 0 V  
V(OUT7,8) = VS  
Ileak_out_vs7,8  
td_uld7,8  
Output leakage current  
1
mA  
ms  
Underload blanking delay  
430  
200  
610  
290  
tdb_old_OUT7,8 Overload shutdown blanking delay Timer started after output activation  
Timer started after blanking delay  
ms  
td_old_OUT7,8  
Overload shutdown filter time  
16  
1
50  
4
ms  
elapsed  
Recovery frequency, slow recovery  
mode  
frec7,8L  
CONTROL_3.OCRF = 0  
kHz  
Recovery frequency, fast recovery  
mode  
frec7,8H  
dVout7,8  
CONTROL_3.OCRF = 1  
2
6
kHz  
Slew rate  
Vs = 13.5 V, Rload = 64 W  
0.2  
0.1  
V/ms  
HEATER OUTPUT OUT9  
T = 25°C, Iout9 = −3 A  
J
W
W
On−resistance to supply,  
HS switch  
Ron_out9  
T = 125°C, Iout9 = −3 A  
J
0.2  
−6  
Ioc9  
Overcurrent threshold  
−10  
A
Iuld9  
Underload detection threshold  
Output delay time, Driver on  
Output delay time, Driver off  
−300  
−30  
12  
mA  
Time from CSB going high to  
V(OUT9) = 0.1·Vs / 0.9·Vs (on/off);  
Rload = 64 W  
td_OUT9(on)  
td_OUT9(off)  
3
3
ms  
12  
Output leakage current, Active  
mode  
Ileak_act9  
V(OUT9) = 0 V  
−10  
−5  
mA  
mA  
Output leakage current, Standby  
mode  
Ileak_stdby9  
V(OUT9) = 0 V  
V(OUT9) = VS  
Ileak_out9_vs  
td_uld9  
Output leakage current  
1
mA  
ms  
Underload blanking delay  
430  
30  
610  
48  
tdb_old_OUT9  
Overload shutdown blanking delay Timer started after output activation  
ms  
Timer started after blanking delay  
td_old_OUT9  
frec9L  
Overload shutdown blanking delay  
elapsed  
16  
1
25  
4
ms  
Recovery frequency, slow recovery  
CONTROL_3.OCRF = 0  
mode  
kHz  
Recovery frequency, fast recovery  
CONTROL_3.OCRF = 1  
mode  
frec9H  
dVout9  
2
6
kHz  
Slew rate  
Vs = 13.5 V, Rload = 4 W  
1.3  
2.3  
3.3  
V/ms  
www.onsemi.com  
11  
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
ELECTROCHROMIC MIRROR CONTROL (ECFB, ECON) (NCV7706 ONLY)  
T = 25°C, Iecfb = 0.5 A  
1.6  
W
W
J
Ron_ecfb  
On−resistance to GND, LS switch  
T = 125°C, Iecfb = 0.5 A  
J
3
1.25  
3
Ilim_ecfb_src  
Vlim_ecfb  
Output current limitation to GND  
Vds voltage limitation  
Vs = 13.5 V, V = 5 V  
0.75  
2
A
CC  
Output enabled  
V
Iuld_ecfb  
Underload detection threshold  
Output delay time, LS Driver on  
Output delay time, LS Driver off  
Vs = 13.5 V, V = 5 V  
10  
20  
1
35  
12  
12  
15  
10  
610  
48  
mA  
CC  
Vs = 13.5 V, V = 5 V,  
td_ecfb(on)  
td_ecfb(off)  
CC  
Rload = 64 W,  
ms  
2
V(ECFB) = 0.9·VS / 0.1·VS (on /off)  
Ileak_ecfb_stdby  
Ileak_ecfb_act  
td_uld_ecfb  
tdb_old_ecfb  
Vecfb = Vs, Standby mode  
Vecfb = Vs, Active mode  
−15  
−10  
430  
30  
mA  
mA  
ms  
ms  
Output leakage current, LS off  
Underload blanking delay  
Overload shutdown blanking delay Timer started after output activation  
Timer started after blanking delay  
td_old_ecfb  
Overload shutdown filter time  
elapsed  
16  
50  
ms  
dVecfb/dt(on/off) Slew rate of ECFB, LS switch  
Vs = 13.5 V, V = 5 V, Rload = 64 W  
5
V/ms  
V
CC  
CONTROL_2.FSR = 1  
CONTROL_2.FSR = 0  
1 LSB = 23.8 mV  
1.4  
1.12  
−1  
1.6  
1.28  
1
Vctrl_max  
DNL  
Maximum EC control voltage  
Differential non linearity  
V
LSB  
dV_ecfb = Vtarget – Vecfb,  
Iecon < 1 mA  
gain  
Voltage deviation between target  
and ECFB  
dV_ecfb  
mV  
−5%  
+5%  
offset  
−1 LSB  
+1 LSB  
Difference voltage between target  
and ECFB sets flag if Vecfb is  
below target  
dV_ecfb = Vtarget – Vecfb,  
Toggle bit STATUS_2.ECLO = 1  
dV_ecfb_lo  
dV_ecfb_hi  
120  
mV  
mV  
Difference voltage between target  
and ECFB sets flag if Vecfb is  
above target  
dV_ecfb = Vtarget – Vecfb,  
Toggle bit STATUS_2.ECHI = 1  
−120  
Vecon_min_hi  
Vecon_max_lo  
Iecon = −10 mA  
Iecon = 10 mA  
4.5  
0
5.5  
0.7  
ECON output voltage range  
V
Vtarget > Vecfb + 500 mV,  
Vecfb = 3.5 V  
−100  
10  
−10  
100  
mA  
Iecon  
ECON output current capability  
Vtarget < Vecfb – 500 mV,  
Vecon = 0.5 V, Vtarget = 1 LSB,  
Vecfb = 0.5 V  
mA  
kW  
Vecon = 0.7 V,  
Pull−down resistance at ECON in  
fast discharge mode  
CONTROL_1.ECEN = 1,  
CONTROL_1.LSECFB = 1,  
CONTROL_1.DAC[5:0] = 0  
Recon_pd  
5
Iq_econ  
t_disc  
t_rec  
ECON quiescent current  
Vecon = Vs, CONTROL_1.ECEN = 0  
Config.LSPWM=1  
1
mA  
ms  
ms  
Auto−discharge pulse width  
Auto−discharge blanking time  
230  
300  
3
360  
3.75  
Config.LSPWM=1  
2.25  
PWM discharge threshold level  
V(ECON) (Note 5)  
Vthdisc_abs  
Vthdisc_diff  
Config.LSPWM=1  
Config.LSPWM=1  
350  
−50  
400  
0
450  
50  
mV  
mV  
PWM discharge threshold level  
V(ECON) – V(ECFB) (Note 5)  
5. If V(ECON) < Vthdisc_abs or V(ECON)−V(ECFB) < Vthdisc_diff then ECON_LOW =1; see description in paragraph Controller for  
Electro−chromic Glass  
www.onsemi.com  
12  
 
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
CURRENT SENSE MONITOR OUTPUT ISOUT/PWM2  
Current Sense output functional  
voltage range  
Vis  
V
CC  
= 5 V, Vs = 8−20 V  
0
V
CC  
− 0.5  
V
Current Sense output ratio OUT1/4  
12000  
10000  
Current Sense output ratio OUT9  
and 5 (low on−resistance bulb  
mode)  
K = Iout / Iis,  
0 V v Vis v 4.5 V, V = 5 V  
Kis  
Current Sense output ratio OUT6  
(low on−resistance bulb mode)  
CC  
5000  
2000  
Current Sense output ratio OUT7/8  
and 5/6 (high on−resistance LED  
mode)  
Current Sense output accuracy  
OUT1/4  
0.3 V v Vis v 4.5 V, V = 5 V  
−12.5% −  
1% FS  
12.5% +  
1% FS  
CC  
Iout1/4 = 0.5−2.9 A  
Current Sense output accuracy  
OUT5/6 (low on−resistance bulb  
mode)  
0.3 V v Vis v 4.5 V, V = 5 V  
Iout6 = 0.25−0.65 A  
CC  
−14% −  
1% FS  
14% +  
1% FS  
Iout5 = 0.5−1.3 A,  
Current Sense output accuracy  
OUT5/6 (high on−resistance LED  
mode)  
Iis,acc  
(Notes 6 and 7)  
0.3 V v Vis v 4.5 V, V = 5 V  
−14% −  
1% FS  
14% +  
1% FS  
CC  
Iout5,6 = 0.1−0.3 A  
Current Sense output accuracy  
OUT7/8  
−8% −  
1.5% FS  
8% +  
1.5% FS  
0.3 V v Vis v 4.5 V, V = 5 V  
CC  
Current Sense output accuracy  
OUT9  
0.3 V v Vis v 4.5 V, V = 5 V  
−10% −  
1.5% FS  
10% +  
1.5% FS  
CC  
Iout9 = 0.5−5.9 A  
Blanking time after current sense  
selection or driver activation  
tis_blank  
tis  
Current Sense blanking time  
Current Sense settling time  
50  
65  
ms  
ms  
0 V to FSR (full scale range)  
230  
265  
6. Current sense output accuracy = Isout−Isout_ideal relative to Isout_ideal  
7. FS (Full scale) = Ioutmax/Kis  
www.onsemi.com  
13  
 
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
DIGITAL INPUTS CSB, SCLK, PWM1/2, SI  
Vinl  
Vinh  
Input low level  
Input high level  
Input hysteresis  
V
V
= 5 V  
= 5 V  
0.3·V  
V
V
CC  
CC  
0.7·V  
CC  
CC  
Vin_hyst  
500  
30  
mV  
V
CC  
= 5 V,  
Rcsb_pu  
Rsclk_pd  
Rsi_pd  
CSB pull−up resistor  
120  
60  
250  
220  
220  
220  
kW  
kW  
kW  
kW  
0 V < Vcsb < 0.7·V  
CC  
V
CC  
= 5 V,  
SCLK pull−down resistor  
SI pull−down resistor  
PWM1 pull−down resistor  
30  
30  
30  
Vsclk = 1.5 V  
V
CC  
= 5 V,  
60  
Vsi = 1.5 V  
V
CC  
= 5 V,  
Rpwm1_pd  
60  
Vpwm1 = 1.5 V  
V
CC  
= 5 V,  
Vpwm2 = 1.5 V,  
current sense disabled  
Rpwm2_pd  
Ileak_isout  
PWM2 pull−down resistor  
30  
−2  
60  
220  
kW  
Output leakage current  
Pin capacitance  
current sense enabled  
2
mA  
Ccsb / sclk /  
pwm1/2  
0 V < V < 5.25 V (Note 8)  
10  
pF  
CC  
DIGITAL INPUTS CSB, SCLK, SI; TIMING  
tsclk  
Clock period  
V
CC  
= 5 V  
1000  
ns  
ns  
ns  
tsclk_h  
tsclk_l  
Clock high time  
Clock low time  
115  
115  
CSB setup time, CSB low before  
rising edge of SCLK  
tset_csb  
tset_sclk  
400  
400  
ns  
ns  
SCLK setup time, SCLK low before  
rising edge of CSB  
tset_si  
SI setup time  
SI hold time  
200  
200  
ns  
ns  
thold_si  
Rise time of input signal SI, SCLK,  
CSB  
tr_in  
tf_in  
100  
100  
ns  
ns  
Fall time of input signal SI, SCLK,  
CSB  
Transfer of SPI−command to input  
register, valid before tsact mode  
transition delay expires  
Minimum CSB high time, switching  
from Standby mode  
tcsb_hi_stdby  
tcsb_hi_min  
5
2
10  
4
ms  
ms  
Minimum CSB high time,  
Active mode  
8. Values based on design and/or characterization.  
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14  
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
DIGITAL OUTPUT SO  
Vsol  
Output low level  
Output high level  
Iso = 5 mA  
Iso = −5 mA  
Vcsb = V  
0.2·V  
V
V
CC  
Vsoh  
0.8·V  
CC  
,
CC  
Ileak_so  
Cso  
Tristate leakage current  
Tristate input capacitance  
−10  
10  
10  
mA  
0 V < Vso < V  
CC  
Vcsb = V  
,
CC  
pF  
0 V < V < 5.25 V (Note 8)  
CC  
DIGITAL OUTPUT SO; TIMING  
tr_so  
tf_so  
SO rise time  
SO fall time  
Cso = 100 pF  
Cso = 100 pF  
80  
50  
140  
100  
ns  
ns  
SO enable time from tristate to low Cso = 100 pF, Iload = 1 mA,  
ten_so_tril  
tdis_so_ltri  
ten_so_trih  
tdis_so_htri  
td_so  
100  
380  
100  
380  
50  
250  
450  
250  
450  
250  
ns  
ns  
ns  
ns  
ns  
level  
pull−up load to V  
CC  
SO disable time from low level to  
tristate  
Cso = 100 pF, Iload = 4 mA,  
pull−up load to V  
CC  
SO enable time from tristate to  
high level  
Cso = 100 pF, Iload = −1 mA,  
pull−down load to GND  
SO disable time from high level to Cso = 100 pF, Iload = −4 mA,  
tristate  
pull−down load to GND  
Vso < 0.3·V , or Vso > 0.7·V  
Cso = 100 pF  
,
CC  
CC  
SO delay time  
8. Values based on design and/or characterization.  
0.8 V  
CC  
0.2 V  
CSB  
CC  
t
t
t
set_csb  
sclk  
set_sclk  
t
t
ri_in  
csb_hi_min  
t
f_in  
0.8 V  
CC  
SCLK  
0.2 V  
0.2 V  
CC  
CC  
t
t
sclk_h  
sclk_l  
t
set_si  
t
hold_si  
0.8 V  
CC  
SI  
Valid  
Valid  
Valid  
t
d_so  
t
en_so_trix  
0.7 V  
0.3 V  
0.7 V  
CC  
CC  
Valid  
SO  
Valid  
Valid  
CC  
Figure 4. SPI Signals Timing Parameters  
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15  
 
NCV7705, NCV7706  
ELECTRICAL CHARACTERISTICS (continued)  
4.5 V < V < 5.25 V, 8 V < Vs < 18 V, −40°C < T < 150°C; unless otherwise noted.  
CC  
J
Symbol  
Parameter  
Test Conditions  
Min  
Typ  
Max  
Unit  
THERMAL PROTECTION  
Tjtw_on  
Temperature warning threshold  
Thermal warning hysteresis  
Thermal shutdown threshold,  
Junction temperature  
140  
160  
°C  
°C  
Tjtw_hys  
5
Tjsd_on  
Junction temperature  
Junction temperature  
160  
160  
180  
°C  
T increasing  
J
Thermal shutdown threshold,  
T decreasing  
J
Tjsd_off  
Tjsd_hys  
°C  
°C  
°C  
Thermal shutdown hysteresis  
5
Temperature difference between  
warning and shutdown threshold  
Tjsdtw_delta  
20  
Filter time for thermal warning and  
shutdown  
td_tx  
TW / TSD Global Status bits  
10  
100  
ms  
OPERATING MODES TIMING  
Time delay for mode change from  
SPI communication ready after V  
CC  
Unpowered mode into Standby  
mode  
tact  
tsact  
tacts  
30  
ms  
ms  
ms  
reached V  
threshold  
uv_VCC(off)  
Time until output drivers are enabled  
after CSB going to high and  
CONTROL_0.MODE = 1  
Time delay for mode change from  
Standby mode into Active mode  
210  
400  
300  
Time delay for mode change from Time until output drivers are disabled  
Active mode into Standby mode via after CSB going to high and  
SPI  
CONTROL_0.MODE = 0  
INTERNAL PWM CONTROL UNIT (OUT5 – OUT8)  
CONTROL_2.PWMI = 1,  
PWMx.FSELx = 0  
PWMlo  
PWMhi  
PWM frequency, low selection  
PWM frequency, high selection  
135  
175  
170  
225  
200  
260  
Hz  
Hz  
CONTROL_2.PWMI = 1,  
PWMx.FSELx = 1  
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product  
performance may not be indicated by the Electrical Characteristics if operated under different conditions.  
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16  
NCV7705, NCV7706  
DETAILED OPERATING AND PIN DESCRIPTION  
General  
monitored for undervoltage conditions supporting a safe  
power−up transition. When Vs drops below the  
undervoltage threshold Vuv_vs(off) (Vs undervoltage  
threshold) all output stages are switched to high−impedance  
state and the global status bit UOV_OC is set. This bit is a  
multi information bit in the Global Status Byte which is set  
in case of overcurrent, Vs over− and undervoltage. In case  
of undervoltage the status bit STATUS_2.VSUV is set, too.  
Bit CONTROL_3.OVUVR (Vs under−/overvoltage  
recovery behavior) can be used to select the desired recovery  
behavior after a Vs under−voltage event. In case of OVUVR  
= 0, all output stages return to their programmed state as  
soon as Vs recovers back to its normal operating range. If  
OVUVR is set, the automatic recovery function is disabled  
thus the output stages will remain in high−impedance  
condition until the status bits have been cleared by the  
microcontroller. To avoid high current oscillations in case of  
output short to GND and low Vs voltage conditions, it is  
recommended to disable the Vs−auto−recovery by setting  
OVUVR = 1.  
The NCV7705/NCV7706 provides four half−bridge  
drivers, five independent high−side outputs and a  
programmable PWM control unit for free configuration.  
Strict adherence to integrated circuit die temperature is  
necessary, with a static maximum die temperature of 150°C.  
This may limit the number of drivers enabled at one time.  
Output drive control and fault reporting are handled via the  
SPI (Serial Peripheral Interface) port. A SPI−controlled  
mode control provides a low quiescent sleep current mode  
when the device is not being utilized. A pull down is  
provided on the SI and SCLK inputs to ensure they default  
to a low state in the event of a severed input signal. A pull−up  
is provided on the CSB input disabling SPI communication  
in the event of an open CSB input.  
Supply Concept  
Power Supply Scheme − VS and VCC  
The Vs power supply voltage is used to supply the half  
bridges and the high−side drivers. An all−internal  
chargepump is implemented to provide the gate−drive  
voltage for the n−channel type high−side transistors. The  
VCC voltage is used to supply the logic section of the IC,  
including the SPI interface.  
Due to the independent logic supply voltage the control  
and status information will not be lost in case of a loss of Vs  
supply voltage. The device is designed to operate inside the  
specified parametric limits if the VCC supply voltage is  
within the specified voltage range (4.5 V to 5.25 V).  
Between the operational level and the VCC undervoltage  
threshold level (Vuv_VCC) it is guaranteed that the device  
remains in a safe functional state without any inadvertent  
change to logic information.  
Chargepump  
In Standby mode, the chargepump is disabled. After  
enabling the device by setting bit CONTROL_0.MODE to  
active (1), the internal oscillator is started and the voltage at  
the CHP output pin begins to increase. The output drivers are  
enabled after a delay of tsact once MODE was set to active.  
Driver Outputs  
Output PWM Control  
For all half−bridge outputs as well as the HS output OUT9  
the device features the possibility to logically combine the  
SPI−setting with a PWM signal that can be provided to the  
inputs PWM1 and ISOUT/PWM2, respectively. Each of the  
outputs has a fixed PWM signal assigned which is shown in  
Table 1. The PWM modulation is enabled by the respective  
bits in the control registers (CONTROL_2.OUTx_PWMx  
and CONTROL_3.OUTx_PWMx). In case of using pin  
ISOUT/PWM2, the application design has to take care of  
either disabling the current sense feature or to provide  
sufficient overdrive capability to maintain proper logic input  
levels for the PWM input.  
In addition to the external signal control, all lighting  
outputs (OUT5−9) can also be PWM controlled via an  
internal PWM generator unit. While the PWM frequency  
can be individually selected between 170 Hz and 225 Hz  
thru bits PWMx.FSELx, the duty cycle can be programmed  
with 7 or 10−bits resolution PWMx.PW[6/9:0]. The  
selection between the different signal sources for these  
Device / Module Ground Concept  
The high−side output stages OUT5−9 are designed to  
handle DC output voltage conditions down to −0.3 V and  
allow for short negative transient currents due to parasitic  
line inductances. Therefore the application has to take care  
that these ratings are not violated under abnormal operating  
conditions (module loss of GND, ground shift if load  
connected to external GND) by either implementing  
external bypass diodes connected to GND or a direct  
connection between load−GND and module−GND. Since  
these output stages are designed to drive resistive loads,  
restrictions on maximum inductance / clamping energy  
apply.  
The heat slug is not hard−connected to internal GND rail.  
It has to be connected externally.  
outputs  
is  
performed  
by  
programming  
bit  
Power Up/Down Control  
In order to prevent uncontrolled operation of the device  
during power/up down, an undervoltage lockout feature is  
CONTROL_2.PWMI. Default value is 0 (external signal  
source). The general principle of the PWM generation  
control scheme is shown in Figure 5.  
implemented. Both supply voltages (V  
and Vs) are  
CC  
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17  
NCV7705, NCV7706  
Table 1. PWM CONTROL SCHEME  
PWM Control Input  
CONTROL_2.PWMI = 1  
CONFIG.PWM_RESEN=0  
PWM1  
CONFIG.PWM_RESEN=1  
PWM1  
Output  
OUT1  
OUT2  
OUT3  
OUT4  
OUT5  
OUT6  
OUT7  
OUT8  
OUT9  
CONTROL_2.PWMI = 0  
PWM1  
PWM1  
PWM1  
PWM1  
PWM1  
PWM1  
PWM1  
PWM1  
PWM1  
PWM1  
PWM1  
PWM_5/6.PW5[6:0]  
PWM_5/6.PW6[6:0]  
PWM_7/8.PW7[6:0]  
PWM_7/8.PW8[6:0]  
PWM1  
PWM_5.PW5[9:0]  
PWM_6.PW6[9:0]  
PWM_7.PW7[9:0]  
PWM_8.PW8[9:0]  
PWM1  
ISOUT/PWM2  
PWM1  
ISOUT/PWM2  
PWM1  
CONTROL_2/3.OUTx_PWMx  
PWM1/2  
PWM enable  
HEnable Output  
external PWM source  
&
f2  
f1  
internal  
clock  
H CT  
=0  
Prescaler  
S
R
Counter10 Bit  
internal PWM source  
[9:3]  
[9:0]  
10  
7
7
A
B
CONTROL_2.PWMI  
A>B  
PWM_x/y.FSELx  
A
B
A>B  
PWM_x/y.PWx[6:0]  
CONFIG.PWM_RESEN  
9
SPI  
PWM_x.PWx[9:0]  
SPI  
Figure 5. PWM Generation Diagram  
Programmable Soft−start Function to Drive Loads with  
Inrush Current Behavior  
real overload and a non linear load like a bulb. Therefore a  
real overload condition can only be qualified by time. It is  
recommended to only enable auto−recovery for a minimum  
amount of time to drive the connected load into a steady state  
condition. After turning off the auto−recovery function, the  
respective channel is automatically disabled if the overload  
condition still persists.  
Loads with startup currents higher than the overcurrent  
limits (e.g. inrush current of bulbs, block current of motors  
and cold resistance of heaters) can be driven using the  
programmable soft−start function (Overcurrent auto−recovery  
mode). Each output driver provides a corresponding  
overcurrent recovery bit (CONTROL_2/3.OCRx) to control  
the output behavior in case of a detected overcurrent event.  
If auto−recovery is enabled, the device automatically  
re−enables the output after a programmable recovery time.  
For all half−bridge outputs as well as the high−side outputs  
OUT5−9 and OUT5/6 in LED mode, the recovery frequency  
can be selected via SPI. OUT5/6 in bulb mode provides a  
fixed recovery frequency. The PWM modulated current will  
provide sufficient average current to power up the load (e.g.  
heat up the bulb) until the load reaches a steady state  
condition. The device itself cannot distinguish between a  
Inductive Loads  
Each half bridge (OUT1−4) is built by internally  
connected low−side and high−side N−MOS transistors. Due  
to the built−in body diodes of the output transistors,  
inductive loads can be driven at the outputs without external  
free−wheeling diodes. The high−side drivers OUT5 to  
OUT9 are designed to drive resistive loads. Therefore only  
a limited clamping energy (W < 1 mJ) can be dissipated by  
the device. For inductive loads (L > 100 mH) an external  
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18  
NCV7705, NCV7706  
freewheeling diode connected between GND and the  
corresponding output is required.  
The low−side driver at ECFB does not feature any  
freewheeling diode or clamping structure to handle  
inductive loads.  
the electro−chromic element. The target voltage at ECFB is  
binary coded with a selectable full scale range (bit  
CONTROL_2.FSR). The default clamping value for the  
output voltage (CONTROL_2.FSR = 0) is 1.2 V, by setting  
CONFIG_1.FSR to “1”, the maximum output voltage is  
1.5 V. The resolution of the DAC output voltage is  
independent of the full−scale−range selection.  
Current Sensing  
The charging of the mirror (positive slope) is determined  
by the positive slew rate of the transconductance amplifier  
and the compensation capacitor, while in case of capacitive  
loads, the negative slope is mainly determined by the current  
consumption thru the load and its capacitance. To allow fast  
settling time changing from higher to lower output voltage  
values, the device provides two modes of operation:  
Current Sense Output / PWM2 Input (Bidirectional Pin  
ISOUT/PWM2)  
The current sense output allows a more precise analysis of  
the actual state of the load rather than the basic detection of  
an under− or overload condition. The sense output provides  
an image of the actual load current at the selected high side  
driver transistor. The current monitor function is available  
for high current half−bridge outputs (OUT1 and OUT4), the  
high current high−side output (OUT9) as well as for the all  
bulb and LED outputs (OUT5−8).  
1. Fast discharge: When the target output voltage is  
set to 0 V and bit CONTROL_1.LS_ECFB is set,  
the voltage at pin ECFB is pulled to ground by a  
1.6 W low−side switch.  
2. PWM discharge: In case of PWM discharge being  
activated (CONFIG.ECM_LSPWM = 1 and  
CONTROL_1.LS_ECFB = 1) (Figure 6):  
a. The circuit regulation starts in normal  
regulation. The DAC value is turned to new  
lower value.  
The current sense ratio is fixed for the low resistance  
outputs OUT1/4/9 and OUT5/6 (bulb mode) to 1/12000  
resp. 1/10000 and for the high ohmic outputs OUT7/8 and  
OUT5/6 (LED mode) to 1/2000. To prevent from false  
readouts, the signal at pin ISOUT is blanked after switching  
on the driver until correct settlement of the circuitry  
(> 65 ms). Bits CONTROL_3.IS[3:0] are used to select the  
output to be multiplexed to the current sense output.  
The NCV7705/NCV7706 provides a sample−and−hold  
functionality for the current sense output to enable precise  
and simple load current diagnostics even during PWM  
operation of the respective output. While in active high−side  
output state, the current provided at ISOUT reflects a  
(low−pass−filtered) image of the actual output current, the  
IS−output current is sampled and held constant as soon as the  
HS output transistor is commanded off via PWM (low−side  
or high−impedant on half−bridge outputs, high−impedant  
on HS−outputs). In case no previous current information is  
available in the Sample−and−hold stage (current sense  
channel changed while actual channel is commanded off)  
the sample stage is reset so that it reflects zero output current.  
b. If the loop is detected out of regulation for a  
time longer than t_rec (~3 ms), the ECON  
voltage is detected low (internal signal  
ECON_LOW = 1), the regulator is switched off  
(DAC voltage at 0) and the fast discharge  
transistor is activated for ~300 ms (t_disc).  
During this fast discharge, the ECON output is  
pulled low to prevent from shoot−thru currents.  
c. At the end of the discharge pulse t_disc the fast  
discharge is switched off and the regulation  
loop is activated again (with DAC to the correct  
wanted value), so the loop goes back to step b.)  
and the ECON_LOW comparator is observed  
again. Before starting a discharge pulse, the  
ECLO and ECHI comparator data is latched.  
Electro Chromic Mirror (NCV7706 ONLY)  
Controller for Electro−chromic Glass  
The feedback loop out of regulation is monitored by  
comparing V(ECON) versus V(ECFB) and versus 400 mV.  
If the regulation is activated and ECON is below ECFB, or  
below 400 mV, then the loop is detected as out of regulation  
and internal signal ECON_LOW is made 1. By activating  
the PWM discharge feature, the overcurrent recovery  
function is automatically disabled, regardless of the setting  
in CONTROL_2.OC_ECFB.  
The voltage of the electro−chromic element connected at  
pin ECFB can be controlled to a target value which is set by  
Control Register 1 (bits CONTROL_1.DAC[5:0]). Setting  
bit CONTROL_1.ECEN enables this function. At the same  
time OUT8 is enabled, regardless of its own control bit  
CONTROL_1.HS8 and the respective PWM setting. An  
on−chip differential amplifier is used to control an external  
logic−level N−MOS pass device that delivers the power to  
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19  
NCV7705, NCV7706  
new ECM target  
voltage requested  
CSB  
V(ECON)  
Sampling of  
ECON−ECFB  
voltage  
Vtarget + offset  
Vtarget − offset  
V(ECFB)  
V(ECON)  
V(ECFB)  
Vtarget,  
V(ECFB),  
V(ECON)  
Vtarget  
(CONTROL_1.DAC)  
tdisc  
disabled  
trec  
enabled  
(on)  
LS_ECFB  
trec  
trec  
(off)  
switch status  
disabled  
(5 kW to GND)  
ECON status  
enabled  
enabled  
ECON_LOW  
(internal signal)  
V(ECON) < V(ECFB),  
out of regulation  
Figure 6. PWM Discharge Mode for ECFB  
The controller provides a chip−internal diode from ECFB  
(Anode) to pin ECON (Cathode) to protect the external  
MOSFET. A capacitor of at least 4.7 nF has to be added to  
pin ECON for stability of the control loop. It is  
recommended to place 220 nF capacitor between ECFB and  
ground to increase the stability.  
The status of the voltage control loop is reported via SPI.  
Bit STATUS_2.ECHI = 1 indicates that the voltage on ECFB  
is higher than the programmed target value,  
STATUS_2.ECLO = 1 indicates that the ECFB voltage is  
below the programmed value. Both status bits are valid if  
they are stable for at least 150 ms (settling time of the  
regulation loop). If PWM discharge is enabled  
(CONFIG.ECM_LSPWM = 1), STATUS_2.ECHI is  
latched at the end of the discharge cycle, therefore if set it  
indicates that the device is in active discharge operation.  
Since OUT8 is the output of a high−side driver, it contains  
the same diagnostic functions as the other high−side drivers  
(e.g. switch−off during overcurrent condition). In  
electro−chrome mode, OUT8 can’t be controlled by PWM.  
For noise immunity reasons, it is recommended to place the  
loop capacitors at ECON as well as another capacitor  
between ECFB and GND as close as possible to the  
respective pins.  
VS  
NCV7706  
OUT8  
ECON  
DAC−EC Control  
6
DAC  
SI  
SCLK  
SPI  
Electro−Chromic  
CSB  
4.7 nF  
Mirror  
ECM  
SO  
ECFB  
Auto  
discharge  
LS Discharge  
Transistor  
220 nF  
Figure 7. Electro Chromic Mirror Application Diagram  
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20  
NCV7705, NCV7706  
Openload (Underload) Detection  
Diagnostic Functions  
The openload detection monitors the load current in the  
output stage while the transistor is active. If the load current  
is below the openload detection threshold for at least td_uld,  
the corresponding bit (ULDx) is set in the status registers  
STATUS_1/2. The status of the output remains unchanged.  
Once set, ULDx remains set regardless of the actual load  
condition. It has to be reset by a read&write access to the  
corresponding status register.  
All diagnostic functions (overcurrent, underload, power  
supply monitoring, thermal warning and thermal shutdown)  
are internally filtered. The failure condition has to be valid  
for the minimum specified filtering time (td_old, td_uld,  
td_uvov and td_tx) before the corresponding status bit in the  
status register is set. The filter function is used to improve  
the noise immunity of the device. The undercurrent and  
temperature warning functions are intended for information  
purpose and do not affect the state of the output drivers. An  
overcurrent condition disables the corresponding output  
driver while a thermal shutdown event disables all outputs  
into high impedance state. Depending on the setting of the  
overcurrent recovery bits in the input register, the driver can  
either perform an auto−retry or remain latched off until the  
microcontroller clears the corresponding status bits.  
Overtemperature shutdown is latch−off only, without  
auto−retry functionality.  
Overload Detection  
An overcurrent condition is indicated by the flag  
(UOV_OC) in the Global Status Byte after a filter time of at  
least td_old. The channel dependent overcurrent flags are set  
in the status registers (STATUS_0/2.OCx) and the  
corresponding driver is switched into high impedance state  
to protect the device. Each low−side and high−side driver  
stage provides its own overcurrent flag. Resetting this  
overcurrent flag automatically re−enables the respective  
output (provided it is still enabled thru the Control register).  
If the over current recovery function is enabled, the internal  
chip logic automatically resets the overcurrent flag after a  
fixed delay time, generating a PWM modulated current with  
a programmable duty cycle. Otherwise the status bits have  
to be cleared by the microcontroller by a read&clear access  
to the corresponding status register.  
Overvoltage / Undervoltage Shutdown  
If the supply voltage Vs rises above the switch off voltage  
Vov_vs(off) or falls below Vuv_vs(off), all output  
transistors are switched to high−impedance state and the  
global status bit UOV_OC (multi information) is set. The  
status flag STATUS_2.VSOV, resp. STATUS_2.VSUV is  
set, too, to log the over−/under−voltage event. The bit  
CONTROL_3.OVUVR can be used to determine the  
recovery behavior once the Vs supply voltage gets back into  
the specified nominal operating range. OVUVR = 0 enables  
auto−recovery, with OVUVR = 1 the output stages remain  
in high impedance condition until the status flags have been  
cleared. Once set, STATUS2.VSOV / VSUV can only be  
reset by a read&clear access to the status register  
STATUS_2.  
Cross−current Protection  
All six half−bridges are protected against cross−currents  
by internal circuitry. If one driver is turned off (LS or HS),  
the activation of the other driver of the same output will be  
automatically delayed by the cross current protection  
mechanism until the active driver is safely turned off.  
Mode Control  
Thermal Warning and Overtemperature Shutdown  
The device provides a dual−stage overtemperature  
protection. If the junction temperature rises above Tjtw_on,  
a temperature warning flag (TW) is set in the Global Status  
Byte and can be read via SPI. The control software can then  
react onto this overload condition by a controlled disable of  
individual outputs. If however the junction temperature  
reaches the second threshold Tjsd_on, the thermal shutdown  
bit TSD is set in the Global Status Byte and all output stages  
are switched into high impedance state to protect the device.  
The minimum shutdown delay for overtemperature is td_tx.  
The output channels can be re−enabled after the device  
cooled down and the TSD flag has been reset by the  
microcontroller by setting CONTROL_0.MODE = 0.  
Wake−up and Mode Control  
Two different modes are available:  
Active mode  
Standby mode  
After power−up of VCC the device starts in Standby  
mode. Pulling the chip−select signal CSB to low level causes  
the device to change into Active mode (analog part active).  
After at least 10 ms delay, the first SPI communication is  
valid and bit CONTROL_0.MODE can be used to set the  
desired mode of operation. If bit MODE remains reset (0) or  
CSB remains low longer than tcsb_low_stdby, the device  
returns to the Standby mode after an internal delay of max.  
8 ms, clearing all register content and setting all output stages  
into high impedance state.  
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21  
NCV7705, NCV7706  
VCC Power−up  
Delay (tact)  
Output stages Hi−Z  
Register content cleared  
SPI not ready  
SPI Control  
General Description  
The 4−wire SPI interface establishes a full duplex  
synchronous serial communication link between the  
NCV7705/NCV7706 and the application’s microcontroller.  
The NCV7705/NCV7706 always operates in slave mode  
whereas the controller provides the master function. A SPI  
access is performed by applying an active−low slave select  
signal at CSB. SI is the data input, SO the data output. The  
SPI master provides the clock to the NCV7705/NCV7706  
via the SCLK input. The digital input data is sampled at the  
rising edge at SCLK. The data output SO is in high  
impedance state (tri−state) when CSB is high. To readout the  
global error flag without sending a complete SPI frame, SO  
indicates the corresponding value as soon as CSB is set to  
active. With the first rising edge at SCLK after the  
high−to−low transition of CSB, the content of the selected  
register is transferred into the output shift register.  
MODE = 1  
or  
CSB = 0  
Delay (tsact)  
MODE = 1  
CSB = 0  
CSB = 1  
and  
MODE = 0  
Standby  
Output stages High−Z  
Active  
Output stages controlled  
thru output registers  
Register content cleared  
CSB = 0  
MODE = 0  
and  
CSB = 1  
Delay timer  
expired  
Delay (tacts)  
Output stages controlled  
thru output registers  
Register content valid  
Figure 8. Mode Transitions Diagram  
The NCV7705/NCV7706 provides four control registers  
(CONTROL_0/1/2/3), two PWM configuration registers  
(PWM_7/8 and PWM_9/10), three status registers  
(STATUS_0/1/2) and one general configuration register  
(CONFIG). Each of these register contains 16−bit data,  
together with the 8−bit frame header (access type, register  
address), the SPI frame length is therefore 24 bits. In  
addition to the read/write accessible registers, the  
NCV7705/NCV7706 provides five 8−bit ID registers  
(ID_HEADER, ID_VERSION, ID_CODE1/2 and  
ID_SPI−FRAME) with 8−bit data length. The content of  
these registers can still be read out by a 24−bit access, the  
data is then transferred in the MSB section of the data frame.  
CSB  
t
t
0
1
2
3
4
5
21 22 23  
SCLK  
D18  
D23 D22 D21 D20 D19  
CSB = 0  
D2 D1 D0  
SI  
t
t
CONTROL_0 MODE = 1  
active  
Mode  
standby  
active  
SPI Frame Format  
Figure 10 shows the general format of the  
NCV7705/NCV7706 SPI frame.  
CSB = 0  
&
MODE = 0  
Mode  
standby  
active  
standby  
t
< 8 ms  
Figure 9. Mode Timing Diagram  
Access  
Type  
Register Address  
Input Data  
Input Data  
CSB  
SCLK  
OC1  
FLT  
OC0  
TF  
A5  
A4  
A3  
A2  
A1  
A0  
DI6  
DI2  
DI1  
DI0  
DI7  
SI  
UOV  
_OC  
SO  
RES  
TSD  
TW  
ULD NRDY DO7  
DO6  
DO2  
DO1  
DO0  
X
Device Status Bits  
Address−dependent Data  
Figure 10. SPI Frame Format  
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22  
 
NCV7705, NCV7706  
24−bit SPI Interface  
way. The device features a stuck−at−one detection, thus  
upon detection of a command = FFFFFFh, the device will be  
forced into the Standby mode. All output drivers are  
switched off.  
Both 24−bit input and output data are MSB first. Each  
SPI−input frame consists of a command byte followed by  
two data bytes. The data returned on SO within the same  
frame always starts with the global status byte. It provides  
general status information about the device. It is then  
followed by 2 data bytes (in−frame response) which content  
depends on the information transmitted in the command  
byte. For write access cycles, the global status byte is  
followed by the previous content of the addressed register.  
Serial Data Out (SO)  
The SO data output driver is activated by a logical low  
level at the CSB input and will go from high impedance to  
a low or high level depending on the global status bit, FLT  
(Global Error Flag). The first rising edge of the SCLK input  
after a high to low transition of the CSB pin will transfer the  
content of the selected register into the data out shift register.  
Each subsequent falling edge of the SCLK will shift the next  
bit thru SO out of the device.  
Chip Select Bar (CSB)  
CSB is the SPI input pin which controls the data transfer  
of the device. When CSB is high, no data transfer is possible  
and the output pin SO is set to high impedance. If CSB goes  
low, the serial data transfer is allowed and can be started. The  
communication ends when CSB goes high again.  
Command Byte / Global Status Byte  
Each communication frame starts with a command byte  
(Table 2). It consists of an operation code (OP[1:0], Table 3)  
which specifies the type of operation (Read, Write, Read &  
Clear, Readout Device Information) and a six bit address  
(A[5:0], Table 4). If less than six address bits are required,  
the remaining bits are unused but are reserved. Both Write  
and Read mode allow access to the internal registers of the  
device. A “Read & Clear”−access is used to read a status  
register and subsequently clear its content. The “Read  
Device Information” allows to read out device related  
information such as ID−Header, Product Code, Silicon  
Version and Category and the SPI−frame ID. While  
receiving the command byte, the global status byte is  
transmitted to the microcontroller. It contains global fault  
information for the device, as shown in Table 6.  
Serial Clock (SCLK)  
If CSB is set to low, the communication starts with the  
rising edge of the SCLK input pin. At each rising edge of  
SCLK, the data at the input pin Serial IN (SI) is latched. The  
data is shifted out thru the data output pin SO after the falling  
edges of SCLK. The clock SCLK must be active only within  
the frame time, means when CSB is low. The correct  
transmission is monitored by counting the number of clock  
pulses during the communication frame. If the number of  
SCLK pulses does not correspond to the frame width  
indicated in the SPI−frame−ID (Chip ID Register, address  
3Eh) the frame will be ignored and the communication  
failure bit “TF” in the global status byte will be set. Due to  
this safety functionality, daisy chaining the SPI is not  
possible. Instead, a parallel operation of the SPI bus by  
controlling the CSB signal of the connected ICs is  
recommended.  
ID Register  
Chip ID Information is stored in five special 8−bit ID  
registers (Table 5). The content can be read out at the  
beginning of the communication.  
Serial Data In (SI)  
During the rising edges of SCLK (CSB is low), the data  
is transferred into the device thru the input pin SI in a serial  
Table 2. COMMAND BYTE / GLOBAL STATUS BYTE STRUCTURE  
Command Byte (IN) / Global Status Byte (OUT)  
23  
OP1  
FLT  
1
22  
OP0  
TF  
0
21  
A5  
20  
A4  
TSD  
0
19  
A3  
TW  
0
18  
17  
A1  
ULD  
0
16  
A0  
Bit  
NCV7705/06 IN  
NCV7705/06 OUT  
Reset Value  
A2  
UOV_OC  
0
RESB  
0
NRDY  
1
Table 3. COMMAND BYTE, ACCESS MODE  
OP1  
OP0  
Description  
0
0
1
1
0
1
0
1
Write Access (W)  
Read Access (R)  
Read and Clear Access (RC)  
Read Device ID (RDID)  
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NCV7705, NCV7706  
Table 4. COMMAND BYTE, REGISTER ADDRESS  
A[5:0]  
Access  
Description  
Content  
Control Register  
CONTROL_0  
00h  
R/W  
Device mode control, Bridge outputs control  
Control Register  
CONTROL_1  
01h  
02h  
03h  
08h  
09h  
10h  
11h  
12h  
13h  
14h  
15h  
16h  
3Fh  
R/W  
R/W  
R/W  
R/W  
R/W  
R/RC  
R/RC  
R/RC  
R/W  
R/W  
R/W  
R/W  
R/W  
High−side outputs control, ECM control (NCV7706 only)  
Bridge outputs recovery control, PWM enable, ECM setup (NCV7706 only)  
High−side outputs recovery control, PWM enable, Current Sense selection  
PWM control register for OUT5/6 (7b control only)  
PWM control register for OUT7/8 (7b control only)  
Bridge outputs Overcurrent diagnosis  
Control Register  
CONTROL_2  
Control Register  
CONTROL_3  
PWM Control Register  
PWM_5/6  
PWM Control Register  
PWM_7/8  
Status Register  
STATUS_0  
Status Register  
STATUS_1  
Bridge outputs Underload diagnosis  
Status Register  
STATUS_2  
HS outputs Overcurrent and Underload diagnosis, Vs Over− and Under-  
voltage, EC−mirror  
PWM Control Register  
PWM_5  
PWM control register for OUT5 (10b control only)  
PWM control register for OUT6 (10b control only)  
PWM control register for OUT7 (10b control only)  
PWM control register for OUT8 (10b control only)  
Mask bits for global fault bits  
PWM Control Register  
PWM_6  
PWM Control Register  
PWM_7  
PWM Control Register  
PWM_8  
Configuration Register  
CONFIG  
Table 5. CHIP ID INFORMATION  
A[5:0]  
00h  
Access  
RDID  
RDID  
RDID  
RDID  
Description  
ID header  
Content  
4300h  
0001h  
7700h  
01h  
Version  
02h  
Product Code 1  
Product Code 2  
03h  
0500h (NCV7705)  
0600h (NCV7706)  
3Eh  
RDID  
SPI−Frame ID  
0200h  
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24  
NCV7705, NCV7706  
Table 6. GLOBAL STATUS BYTE CONTENT  
FLT  
Global Fault Bit  
Failures of the Global Status Byte, bits [6:0] are always linked to the Global Fault Bit FLT. This bit  
is generated by an OR combination of all failure bits of the device (RESB inverted). It is reflected  
via the SO pin while CSB is held low and NO clock signal is present (before first positive edge of  
SCLK). The flag will remain valid as long as CSB is held low. This operation does not cause the  
Transmission error Flag in the Global Status Byte to be set. Signals TW and ULD can be masked.  
0
1
No fault Condition  
Fault Condition  
TF  
0
SPI Transmission Error  
No Error  
Error  
If the number of clock pulses within the previous frame was unequal 0 (FLT polling) or 24. The  
frame was ignored and this flag was set.  
1
RESB  
Reset Bar (Active low)  
0
1
Reset  
Bit is set to ”0” after a Power−on−Reset or a stuck−at−1 fault at SI (SPI−input data = FFFFFFh)  
has been detected. All outputs are disabled.  
Normal Operation  
TSD  
Overtemperature Shutdown  
No Thermal  
Shutdown  
Thermal Shutdown Status indication. In case of a Thermal Shutdown, all output drivers including  
the charge pump output are deactivated (high impedance). The TSD bit has to be cleared thru a  
SW reset to reactivate the output drivers and the chargepump output.  
0
1
Thermal Shutdown  
TW  
0
Thermal Warning  
No Thermal Warning  
Thermal Warning  
This bit indicates a pre−warning level of the junction temperature. It is maskable by the  
Configuration Register (CONFIG.NO_TW).  
1
UOV_OC  
VS Monitoring, Overcurrent Status  
0
1
No Fault  
Fault  
This bit represents a logical OR combination of under−/overvoltage signals (VS) and overcurrent  
signals.  
ULD  
Underload  
This bit represents a logical OR combination of all underload signals. It is maskable by the  
Configuration Register (CONFIG.NO_ULDx). It is also possible to deactivate this flag for HS1 or  
LS1, only (CONFIG.NO_ULD_HS1/LS1).  
0
1
No Underload  
Underload  
NRDY  
Not Ready  
0
1
Device Ready  
After transition from Standby to Active mode, an internal timer is started to allow the internal  
chargepump to settle before any outputs can be activated. This bit is cleared automatically after  
the startup is completed.  
Device Not Ready  
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25  
NCV7705, NCV7706  
SPI REGISTERS CONTENT  
CONTROL_0 Register  
Address: 00h  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
RW  
HS4  
0
D4  
RW  
LS4  
0
D3  
D2  
D1  
D0  
RW  
Access type  
Bit name  
Reset value  
RW  
RW  
RW  
RW  
RW  
RW  
HS1 LS1  
HS2 LS2  
HS3 LS3  
0
0
0
0
0
0
0
MODE  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
HSx  
LSx  
0
Description  
Remark  
0
0
1
1
default  
OUTx High impedance  
LSx enabled  
If a driver is enabled by the control register AND the  
corresponding PWM enable bit is set in CONTROL_2  
register, the output is only activated if PWM1 (PWM2)  
input signal is high. Since OUT1..OUT4 are  
half−bridge outputs, activating both HS and LS at the  
same time is prevented by internal logic.  
HS/LS Outputs  
OUT1−4 Driver  
Control  
1
0
HSx enabled  
1
OUTx High impedance  
MODE  
Description  
Remark  
If MODE is set, the device is switched to Active mode.  
Resetting MODE forces the device to transition into  
Standby mode, all internal memory is cleared and all  
output stages are switched into their default state (off).  
0
default  
Standby  
Mode Control  
1
Active  
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26  
NCV7705, NCV7706  
CONTROL_1 Register  
Address: 01h  
NCV7705:  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access type  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
LS  
ECFB  
Bit name  
HS5.1 HS5.0 HS6.1 HS6.0 HS7 HS8 HS9  
DAC5 DAC4 DAC3 DAC2 DAC1 DAC0 ECEN  
0
0
Reset value  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
NCV7706:  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access type  
Bit name  
Reset value  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
HS5.1 HS5.0 HS6.1 HS6.0 HS7 HS8 HS9  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
HSx.1  
HSx.0  
Description  
Remark  
0
0
default  
OUTx High impedance  
Output enabled, low  
current mode (LED mode)  
If a driver is enabled by the control register AND the  
corresponding PWM enable bit is set in CONTROL_3  
register, the output is only activated if the  
corresponding PWM input signal (PWM pin or internal  
PWM signal) is high.  
HS Outputs  
OUT5,6  
Control  
0
1
Output enabled, high  
current mode (bulb mode)  
1
1
0
1
OUTx High impedance  
HSx  
Description  
Remark  
If a driver is enabled by the control register AND the  
corresponding PWM enable bit is set in CONTROL_3  
register, the output is only activated if the  
corresponding PWM input signal (PWM pin or internal  
PWM signal) is high.  
HS Outputs  
OUT7−9  
Control  
0
default  
OUTx High impedance  
1
OUTx enabled  
NCV7706 ONLY:  
LS ECFB  
Description  
Remark  
ECFB  
Pull−down  
Output  
Pull−down transistor  
disabled (high impedance)  
The ECFB−pull−down transistor can only be activated  
if the DAC output voltage is set to 0 V (DAC[5:0]=0). If  
the PWM enable bit CONTROL_2.ECFB_PWM1 is  
set, the output will only be activated when the PWM1  
signal input is high.  
0
default  
Control  
Pull−down transistor  
enabled  
1
NCV7706 ONLY:  
DAC[5:0]  
Description  
Remark  
Electrochrom.  
Mirror  
Reference  
Voltage  
6
Reference voltage for  
ECON/ECFB differential  
amplifier  
V(DAC) = 1 + (1.5 / 2 ) DAC[5:0]  
If bit CONTROL_2.FSR=0, the output voltage is  
clamped to 1.2 V.  
0
n
default  
default  
NCV7706 ONLY:  
ECEN  
Description  
Remark  
Electrochromic mirror  
controller disabled  
By enabling the electrochromic mirror controller  
(ECEN=1), the output driver for the external pass  
transistor (ECON) is enabled. In addition, OUT8 is  
activated, regardless of the setting of  
CONTROL_1.HS8.  
0
Electrochrom.  
Mirror Enable  
Electrochromic mirror  
controller enabled  
1
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27  
NCV7705, NCV7706  
CONTROL_2 Register  
Address: 02h  
NCV7705:  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access type  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
OUT1 OUT2 OUT3  
PWM1 PWM1 PWM1  
OUT4  
PWM1  
Bit name  
OCR1 OCR2 OCR3  
0
0
0
0
OCR4  
0
0
0
PWMI  
0
0
0
0
0
0
0
0
0
Reset value  
0
0
0
0
0
0
0
NCV7706:  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access type  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
OCR  
ECFB  
OUT1 OUT2 OUT3  
PWM1 PWM1 PWM1  
OUT4 ECFB  
PWM1 PWM1  
Bit name  
OCR1 OCR2 OCR3  
0
0
0
0
OCR4  
0
PWMI  
0
0
0
0
0
FSR  
0
Reset value  
0
0
0
0
0
0
0
0
0
OCRx  
Description  
Remark  
During an overcurrent event the overcurrent status bit  
STATUS_0/2.OCx is set and the dedicated output is  
switched off. (The global multi bit UOV_OC is set,  
also). When the overcurrent recovery bit is enabled,  
the output will be reactivated automatically after a  
programmable delay time (CONTROL_3.OCRF).  
Overcurrent Recovery  
disabled  
0
default  
Overcurrent  
Recovery  
Overcurrent Recovery  
enabled  
1
PWMI  
Description  
Remark  
Internal PWM unit  
disabled  
0
default  
The device has three different PWM sources: external  
pins PWM1, PWM2 and the internal PWM unit which  
can be used to control the lamp drivers in an  
PWM Unit  
Internal PWM unit  
enabled  
1
additional way. PWMI selects the internal PWM unit.  
OUTx PWM  
Description  
Remark  
For the half−bridge outputs it is possible to select the  
PWM input pin PWM1. In this case the dedicated  
output (selected in CONTROL_0 register) is on if the  
PWM input signal is high. All half−bridges are  
controlled by PWM1.  
0
default  
PWMx not selected  
PWM1/2  
Selection  
1
PWMx selected  
NCV7706 ONLY:  
FSR  
Description  
Remark  
6
Vout = 1.5 / 2  
DAC[5:0] clamped at  
1.2 V  
0
default  
DAC Full−scale  
Range Control  
The default voltage at ECFB in electrochrome mode is  
clamped at 1.2 V, when FSR=1 the maximum value is  
1.5 V.  
6
Vout = 1.5 / 2  
DAC[5:0]  
1
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28  
NCV7705, NCV7706  
CONTROL_3 Register  
Address: 03h  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW RW RW RW  
OUT5 OUT6 OUT7 OUT8 OUT9  
PWM1 PWM2 PWM1 PWM2 PWM1  
Bit name  
OCR5 OCR6 OCR7 OCR8 OCR9  
OCRF OVUVR IS3 IS2 IS1 IS0  
Reset value  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
OCRx  
Description  
Remark  
During an overcurrent event the overcurrent status bit  
STATUS_0/2.OCx is set and the dedicated output is  
switched off. (The global multi bit UOV_OC is set,  
also). When the overcurrent recovery bit is enabled,  
the output will be reactivated automatically after a  
programmable delay time (CONTROL_3.OCRF).  
Overcurrent Recovery  
disabled  
0
default  
Overcurrent  
Recovery  
Overcurrent Recovery  
enabled  
1
OUTx PWM  
Description  
Remark  
For the HS outputs it is possible to select the PWM  
input pins PWM1, PWM2 or internal PWMI unit  
(OUT5−8 only). In this case the dedicated output  
(selected in CONTROL_1 register) is on if the PWM  
input signal is high. OUT6 and OUT8 are controlled by  
PWM2, OUT5,7 and OUT9 are controlled by PWM1.  
0
default  
PWMx not selected  
PWM1/2  
Selection  
1
PWMx selected  
OCRF  
Description  
Remark  
Overcurrent  
Recovery  
Frequency  
Selection  
Slow Overcurrent  
recovery mode  
0
default  
If the overcurrent recovery bit is set, the output will be  
switched on automatically after a delay time. The  
recovery behavior of OUT5,6 in bulb mode is not  
affected by this bit.  
Fast Overcurrent recovery  
mode  
1
OVUVR  
Description  
Remark  
Over− and undervoltage  
recovery function enabled  
Over− /  
Under−voltage  
Recovery  
0
default  
If the OV/UV recovery is disabled by setting  
OVUVR=1, the status register STATUS_2 bits VSOV  
or VSUV have to be cleared after an OV/UV event.  
No over− and undervoltage  
recovery  
1
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29  
NCV7705, NCV7706  
IS3  
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
IS2  
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
IS1  
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
IS0  
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Description  
OUT1  
Remark  
current sensing deactivated  
current sensing deactivated  
current sensing deactivated  
current sensing deactivated  
OUT4  
The current in all high−side power stages  
(except of OUT2/3) can be monitored at the  
bidirectional multifunctional pin ISOUT/PWM2.  
This pin is a multifunctional pin and can be  
activated as output by setting the current  
selection bits IS[3:0]. The selected high−side  
output will be multiplexed to the output ISOUT.  
OUT5  
Current  
Sensing  
Selection  
OUT6  
OUT7  
OUT8  
OUT9  
current sensing deactivated  
current sensing deactivated  
current sensing deactivated  
current sensing deactivated  
current sensing deactivated  
PWM_5/6 Register  
Address: 08h  
Bit  
D15  
D14  
D13  
D12  
RW  
D11  
RW  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
Bit Name  
Reset Value  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
FSEL5 PW5.6 PW5.5 PW5.4 PW5.3 PW5.2 PW5.1 PW5.0 FSEL6 PW6.6 PW6.5 PW6.4 PW6.3 PW6.2 PW6.1 PW6.0  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PW5[6:0]  
Description  
Remark  
PWM Duty  
Cycle selector  
for OUT5  
It is possible to control OUT5 by the internal PWM unit  
if bit PWMI is set in the control register CONTROL_2.  
If CONFIG.PWM_RESEN is set, OUT5 duty cycle is  
controlled by register PWM_5 with 10−bit resolution.  
0
default  
Duty Cycle for OUT5 =  
(PW5[6:0] +1) / 128  
1 .. 7Fh  
FSEL5  
Description  
f(PWM) = 170 Hz  
f(PWM) = 225 Hz  
Remark  
PWM  
Frequency  
selector for  
OUT5  
0
1
default  
default  
Bit FSEL5 selects between 170 and 225 Hz PWM  
frequency for OUT5.  
PW6[6:0]  
Description  
Remark  
It is possible to control OUT6 by the internal PWM  
unit if bit PWMI is set in the control register  
CONTROL_2. If CONFIG.PWM_RESEN is set,  
OUT6 duty cycle is controlled by register PWM_6  
with 10−bit resolution.  
PWM Duty  
Cycle selector  
for OUT6  
0
Duty Cycle for OUT6  
= (PW6[6:0] +1) / 128  
1 .. 7Fh  
FSEL6  
Description  
f(PWM) = 170 Hz  
f(PWM) = 225 Hz  
Remark  
PWM  
Frequency  
selector for  
OUT6  
0
1
default  
Bit FSEL6 selects between 170 and 225 Hz PWM  
frequency for OUT6.  
www.onsemi.com  
30  
NCV7705, NCV7706  
PWM_7/8 Register  
Address: 09h  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
Bit Name  
Reset Value  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
FSEL7 PW7.6 PW7.5 PW7.4 PW7.3 PW7.2 PW7.1 PW7.0 FSEL8 PW8.6 PW8.5 PW8.4 PW8.3 PW8.2 PW8.1 PW8.0  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PW7[6:0]  
Description  
Remark  
PWM Duty  
Cycle selector  
for OUT7  
0
default  
It is possible to control OUT7 by the internal PWM unit  
if bit PWMI is set in the control register CONTROL_2.  
If CONFIG.PWM_RESEN is set, OUT7 duty cycle is  
controlled by register PWM_7 with 10−bit resolution.  
Duty Cycle for OUT7 =  
(PW7[6:0] +1) / 128  
1 .. 7Fh  
FSEL7  
Description  
f(PWM) = 170 Hz  
f(PWM) = 225 Hz  
Remark  
PWM  
Frequency  
selector for  
OUT7  
0
1
default  
default  
Bit FSEL7 selects between 170 and 225 Hz PWM  
frequency for OUT7.  
PW8[6:0]  
Description  
Remark  
PWM Duty  
Cycle selector  
for OUT8  
It is possible to control OUT8 by the internal PWM unit  
if bit PWMI is set in the control register CONTROL_2.  
If CONFIG.PWM_RESEN is set, OUT8 duty cycle is  
controlled by register PWM_8 with 10−bit resolution.  
0
Duty Cycle for OUT8 =  
(PW8[6:0] +1) / 128  
1 .. 7Fh  
FSEL8  
Description  
f(PWM) = 170 Hz  
f(PWM) = 225 Hz  
Remark  
PWM  
Frequency  
selector for  
OUT8  
0
1
default  
Bit FSEL8 selects between 170 and 225 Hz PWM  
frequency for OUT8.  
www.onsemi.com  
31  
NCV7705, NCV7706  
STATUS_0 Register  
Address: 10h  
Bit  
D15  
R/RC R/RC R/RC R/RC R/RC R/RC  
OC OC OC OC OC OC  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
R/RC R/RC  
OC  
HS4  
OC  
LS4  
Bit Name  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
HS1 LS1 HS2 LS2 HS3 LS3  
Reset Value  
0
0
0
0
0
0
0
0
OCx  
0
Description  
Remark  
During an overcurrent event in one of the HS or LS, the belonging  
overcurrent status bit STATUS_0.OCx is set and the dedicated  
output is switched off. (The global multi bit UOV_OC is set, also).  
When the overcurrent recovery bit is enabled, the output will be  
reactivated automatically after a programmable delay time  
(CONTROL_3.OCRF). If the overcurrent recovery bit is not set the  
microcontroller has to clear the OC failure bit and to reactivate the  
output stage again.  
No overcurrent  
detected  
OUT1−4  
Overcurrent  
Detection  
1
Overcurrent detected  
STATUS_1 Register  
Address: 11h  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
Bit Name  
R/RC R/RC R/RC R/RC R/RC R/RC  
ULD ULD ULD ULD ULD ULD  
R/RC R/RC  
ULD ULD  
0
0
0
0
0
0
0
0
HS1 LS1  
HS2 LS2  
HS3 LS3  
HS4  
LS4  
Reset Value  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ULDx  
Description  
Remark  
For each output stage an underload status bit ULD is available. The  
underload detection is done in “on−mode”. If the load current is  
below the undercurrent detection threshold for at least td_uld, the  
corresponding underload bit ULDx is set.  
If an ULD event occurs the global status bit ULD will be set.  
For ULD_HS1 and ULD_LS1 it is possible to deactivate the global  
ULD failure bit by setting the configuration bits  
0
1
No underload detected  
Underload detected  
OUT1−4  
Underload  
Detection  
CONFIG.NO_ULD_HS1/LS1. With setting  
CONFIG.NO_ULD_OUTn the global ULD failure bit is deactivated  
in general.  
www.onsemi.com  
32  
NCV7705, NCV7706  
STATUS_2 Register  
Address: 12h  
NCV7705:  
Bit  
D15  
R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC  
OC ULD OC ULD OC ULD OC ULD OC ULD  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access type  
R/RC R/RC  
VSUV VSOV  
Bit name  
0
0
0
0
0
0
0
0
HS5 HS5 HS6 HS6 HS7 HS7 HS8 HS8 HS9 HS9  
Reset value  
0
0
0
0
0
0
0
0
0
0
0
0
NCV7706:  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access type  
R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC R/RC  
OC ULD OC ULD OC ULD OC ULD OC ULD OC ULD  
HS5 HS5 HS6 HS6 HS7 HS7 HS8 HS8 HS9 HS9 ECFB ECFB  
Bit name  
VSUV VSOV ECLO ECHI  
Reset value  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
OCx  
Description  
Remark  
During an overcurrent event in one of the HS the belonging  
overcurrent status bit STATUS_2.OCx is set and the dedicated  
output is switched off. (The global multi bit UOV_OC is set,  
also). When the overcurrent recovery bit is enabled, the output  
will be reactivated automatically after a programmable delay  
time (CONTROL_3.OCRF). If the overcurrent recovery bit is not  
set the microcontroller has to clear the OC failure bit and to  
reactivate the output stage again.  
0
No overcurrent detected  
Overcurrent detected  
OUT5−9  
Overcurrent  
Detection  
1
ULDx  
Description  
Remark  
For each output stage an underload status bit ULD is available.  
The underload detection is done in ”on−mode”. If the load  
current is below the undercurrent detection threshold for at  
least td_uld, the corresponding underload bit ULDx is set.  
0
No underload detected  
OUT5−9  
Underload  
Detection  
If an ULD event occurs the global status bit ULD will be set.  
1
Underload detected  
It is possible to deactivate the global ULD failure bit by setting  
the configuration bits CONFIG.NO_ULD_OUTn.  
VSUV  
Description  
Remark  
In case of an Vs undervoltage event, the output stages will be  
deactivated immediately and the corresponding failure flag will  
be set. By default the output stages will be reactivated  
automatically after Vs is recovered unless the control bit  
CONTROL_3.OVUVR is set. If this is the case (OVUVR=1) the  
bit VSUV has to be cleared after an UV event.  
0
No undervoltage detected  
Vs  
Undervoltage  
1
Undervoltage detected  
VSOV  
Description  
Remark  
In case of an Vs overvoltage event, the output stages will be  
deactivated immediately and the corresponding failure flag will  
be set. By default the output stages will be reactivated  
automatically after Vs is recovered unless the control bit  
CONTROL_3.OVUVR is set. If this is the case (OVUVR=1) the  
bit VSOV has to be cleared after an OV event.  
0
No overvoltage detected  
Vs  
Overvoltage  
1
Overvoltage detected  
ECLO  
ECHI  
Description  
Remark  
0
0
1
1
0
1
0
1
ECM output regulation in range  
ECM output V > Vregulation  
ECM output V < Vregulation  
not used  
Two comparators monitor the voltage at pin ECFB (feedback)  
in electrocrome mode. If this voltage is below / above the  
programmed target these bits signal the difference after at least  
32 ms. The bits are not latched and may toggle after at least  
32 ms, if the ECFB voltage has not yet reached the target. They  
are not assigned to the Global Error Flag.  
EC Mirror  
Control  
Status  
www.onsemi.com  
33  
NCV7705, NCV7706  
PWM_5 Register  
Address: 13h  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
Bit Name  
Reset Value  
RW  
FSEL5  
0
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
0
0
0
0
0
PW5.9 PW5.8 PW5.7 PW5.6 PW5.5 PW5.4 PW5.3 PW5.2 PW5.1 PW5.0  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PW5[6:0]  
Description  
Remark  
PWM Duty  
Cycle selector  
for OUT5  
0
default  
It is possible to control OUT5 by the internal PWM unit  
with 10 bit resolution if bits CONTROL_2.PWMI and  
CONFIG.PWM_RESEN are set; PWM_5.PW5[9:0] is  
ignored otherwise.  
Duty Cycle for OUT5 =  
(PW5[9:0] +1) / 1024  
1 .. 7Fh  
FSEL5  
Description  
f(PWM) = 170 Hz  
f(PWM) = 225 Hz  
Remark  
PWM  
Frequency  
selector for  
OUT5  
0
1
default  
Bit FSEL5 selects between 170 and 225 Hz PWM  
frequency for OUT5.  
PWM_6 Register  
Address: 14h  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
Bit Name  
Reset Value  
RW  
FSEL6  
0
0
0
0
0
0
0
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
0
0
PW6.9 PW6.8 PW6.7 PW6.6 PW6.5 PW6.4 PW6.3 PW6.2 PW6.1 PW6.0  
0
0
0
0
0
0
0
0
0
0
0
0
PW6[6:0]  
Description  
Remark  
PWM Duty  
Cycle selector  
for OUT6  
0
default  
default  
It is possible to control OUT6 by the internal PWM unit  
with 10 bit resolution if bits CONTROL_2.PWMI and  
CONFIG.PWM_RESEN are set; PWM_6.PW6[9:0] is  
ignored otherwise.  
Duty Cycle for OUT6 =  
(PW6[9:0] +1) / 1024  
1 .. 7Fh  
FSEL6  
Description  
f(PWM) = 170 Hz  
f(PWM) = 225 Hz  
Remark  
PWM  
Frequency  
selector for  
OUT6  
0
1
Bit FSEL6 selects between 170 and 225 Hz PWM  
frequency for OUT6.  
www.onsemi.com  
34  
NCV7705, NCV7706  
PWM_7 Register  
Address: 15h  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
Bit Name  
Reset Value  
RW  
FSEL7  
0
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
0
0
0
0
0
PW7.9 PW7.8 PW7.7 PW7.6 PW7.5 PW7.4 PW7.3 PW7.2 PW7.1 PW7.0  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PW7[6:0]  
Description  
Remark  
PWM Duty  
Cycle selector  
for OUT7  
0
default  
It is possible to control OUT7 by the internal PWM unit  
with 10 bit resolution if bits CONTROL_2.PWMI and  
CONFIG.PWM_RESEN are set; PWM_7.PW7[9:0] is  
ignored otherwise.  
Duty Cycle for OUT7 =  
(PW7[9:0] +1) / 1024  
1 .. 7Fh  
FSEL7  
Description  
f(PWM) = 170 Hz  
f(PWM) = 225 Hz  
Remark  
PWM  
Frequency  
selector for  
OUT7  
0
1
default  
Bit FSEL7 selects between 170 and 225 Hz PWM  
frequency for OUT7.  
PWM_8 Register  
Address: 16h  
Bit  
D15  
D14  
D13  
D12  
D11  
D10  
D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
Bit Name  
Reset Value  
RW  
FSEL8  
0
0
0
0
0
0
0
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
RW  
0
0
PW8.9 PW8.8 PW8.7 PW8.6 PW8.5 PW8.4 PW8.3 PW8.2 PW8.1 PW8.0  
0
0
0
0
0
0
0
0
0
0
0
0
PW8[9:0]  
Description  
Remark  
PWM Duty  
Cycle selector  
for OUT8  
0
default  
default  
It is possible to control OUT8 by the internal PWM unit  
with 10 bit resolution if bits CONTROL_2.PWMI and  
CONFIG.PWM_RESEN are set; PWM_8.PW8[9:0] is  
ignored otherwise.  
Duty Cycle for OUT8 =  
(PW8[9:0] +1) / 1024  
1 .. 7Fh  
FSEL8  
Description  
f(PWM) = 170 Hz  
f(PWM) = 225 Hz  
Remark  
PWM  
Frequency  
selector for  
OUT8  
0
1
Bit FSEL8 selects between 170 and 225 Hz PWM  
frequency for OUT8.  
www.onsemi.com  
35  
NCV7705, NCV7706  
CONFIG Register  
Address: 3Fh  
NCV7705:  
Bit  
D15  
D14  
D13 D12 D11 D10 D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
RW  
0
0
0
0
0
0
0
0
0
0
RW  
RW  
RW  
RW  
PWM  
RESEN  
NO_ULD NO_ULD NO_  
HS1  
NO_ULD  
OUTn  
Bit Name  
0
0
0
0
0
0
0
0
0
0
0
0
LS1  
TW  
Reset Value  
0
0
0
0
0
NCV7706:  
Bit  
D15  
D14  
D13 D12 D11 D10 D9  
D8  
D7  
D6  
D5  
D4  
D3  
D2  
D1  
D0  
Access Type  
0
0
RW  
0
0
0
0
0
0
0
0
0
0
0
0
RW  
RW  
RW  
RW  
RW  
PWM  
RESEN  
ECM  
LSPWM  
NO_ULD NO_ULD NO_  
HS1  
NO_ULD  
OUTn  
Bit Name  
0
0
0
0
0
0
LS1  
TW  
Reset Value  
0
0
0
0
0
0
NO_ULD  
HS1  
NO_ULD  
LS1  
Description  
Remark  
Global underload flag  
at HS1/LS1 active  
0
0
1
1
0
1
0
1
default  
For ULD_HS1 and ULD_LS1 it is possible to  
deactivate the global ULD failure bit by setting the  
configuration bits  
Global  
Underload Flag  
HS1/LS1  
No global underload  
flag at LS1  
CONFIG.NO_ULD_HS1/LS1.With setting  
CONFIG.NO_ULD_OUTn the global ULD failure  
bit is deactivated in general.  
No global underload  
flag at HS1  
No global underload  
flag at HS1/LS1  
NO_TW  
Description  
Remark  
Thermal warning flag  
active  
0
1
default  
default  
default  
No Thermal  
Warning Flag  
The global thermal warning bit TW can be  
deactivated.  
No thermal warning  
flag active  
NO_ULD_OUTn  
Description  
Remark  
Global underload flag  
active  
Global  
Undeload Flag  
OUTn  
0
By setting CONFIG.NO_ULD_OUTn the global  
ULD failure bit is deactivated in general.  
No global underload  
flag active  
1
NCV7706 ONLY:  
ECM_LSPWM  
Description  
Remark  
LS PWM feature  
disabled  
If this bit is set, automatic PWM discharge on the  
ECM output is enabled. In case of PWM  
discharge the Overcurrent recovery feature is  
disabled, regardless of the setting of  
CONTROL_2.OC_ECFB.  
0
ECM PWM  
Discharge  
LS PWM feature  
enabled  
1
PWM_RESEN  
Description  
Remark  
By default, 7 bits internal PWM resolution is used  
and duty cycle is controlled by registers  
PWM_5/6 and PWM_7/8.  
0
default  
7 bits PWM  
Increased  
PWM  
Resolution  
If this bit is set, 10 bits internal PWM resolution is  
used and duty cycle is controlled by registers  
PWM_5, PWM_6, PWM_7 and PWM_8.  
1
10 bits PWM  
www.onsemi.com  
36  
NCV7705, NCV7706  
PACKAGE DIMENSIONS  
SSOP36 EP  
CASE 940AB  
ISSUE A  
NOTES:  
0.20 C A-B  
1. DIMENSIONING AND TOLERANCING PER  
ASME Y14.5M, 1994.  
D
4X  
DETAIL B  
D
2. CONTROLLING DIMENSION: MILLIMETERS.  
3. DIMENSION b DOES NOT INCLUDE DAMBAR  
PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.13 TOTAL IN  
EXCESS OF THE b DIMENSION AT MMC.  
4. DIMENSION b SHALL BE MEASURED BE-  
TWEEN 0.10 AND 0.25 FROM THE TIP.  
5. DIMENSIONS D AND E1 DO NOT INCLUDE  
MOLD FLASH, PROTRUSIONS OR GATE  
BURRS. DIMENSIONS D AND E1 SHALL BE  
DETERMINED AT DATUM H.  
A
X
36  
19  
X = A or B  
e/2  
E1  
E
DETAIL B  
6. THIS CHAMFER FEATURE IS OPTIONAL. IF  
IT IS NOT PRESENT, A PIN ONE IDENTIFIER  
MUST BE LOACATED WITHIN THE INDICAT-  
ED AREA.  
36X  
0.25 C  
PIN 1  
REFERENCE  
MILLIMETERS  
1
18  
DIM MIN  
MAX  
2.65  
0.10  
2.60  
0.30  
0.32  
e
A
A1  
A2  
b
---  
---  
36X b  
B
M
S
S
0.25  
T A  
B
2.15  
0.18  
0.23  
NOTE 6  
TOP VIEW  
c
h
DETAIL A  
A
A2  
D
10.30 BSC  
H
D2  
E
5.70  
5.90  
10.30 BSC  
7.50 BSC  
3.90 4.10  
0.50 BSC  
0.25 0.75  
0.90  
c
E1  
E2  
e
h
0.10 C  
h
A1  
SEATING  
PLANE  
END VIEW  
M1  
36X  
C
SIDE VIEW  
D2  
L
0.50  
L2  
M
0.25 BSC  
0
8
_
_
_
M1  
5
15  
_
GAUGE  
PLANE  
M
E2  
L2  
SEATING  
PLANE  
C
36X  
L
DETAIL A  
BOTTOM VIEW  
SOLDERING FOOTPRINT  
36X  
1.06  
5.90  
4.10  
10.76  
1
36X  
0.36  
0.50  
PITCH  
DIMENSIONS: MILLIMETERS  
www.onsemi.com  
37  
NCV7705, NCV7706  
ON Semiconductor and the  
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.  
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NCV7705/D  

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