NCP51560BBDWR2G [ONSEMI]

5 kVRMS Isolated Dual Channel 4.5/9 A Gate Driver;
NCP51560BBDWR2G
型号: NCP51560BBDWR2G
厂家: ONSEMI    ONSEMI
描述:

5 kVRMS Isolated Dual Channel 4.5/9 A Gate Driver

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中文:  中文翻译
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DATA SHEET  
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5 kVrms 4.5-A/9-A Isolated  
Dual Channel Gate Driver  
SOIC16 WB  
CASE 751G03  
NCP51560  
The NCP51560 are isolated dualchannel gate drivers  
with 4.5A/9A source and sink peak current respectively. They are  
designed for fast switching to drive power MOSFETs, and SiC  
MOSFET power switches. The NCP51560 offers short and matched  
propagation delays.  
MARKING DIAGRAM  
16  
NCP51560  
XY  
AWLYYWWG  
Two independent and 5 kV internal galvanic isolation from input  
rms  
to each output and internal functional isolation between the two output  
drivers allows a working voltage of up to 1500 V . This driver can be  
DC  
1
used in any possible configurations of two low side, two highside  
switches or a halfbridge driver with programmable dead time.  
An ENA/DIS pin shutdowns both outputs simultaneously when set  
low or high for ENABLE or DISABLE mode respectively.  
The NCP51560 offers other important protection functions such  
as independent undervoltage lockout for both gate drivers and a Dead  
Time adjustment function  
NCP51560 = Specific Device Code  
X
= A or B or C or D for UVLO Option  
Y
A
WL  
YY  
WW  
G
= A or B for ENABLE/DISABLE  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= PbFree Package  
Features  
Flexible: Dual LowSide, Dual HighSide or HalfBridge Gate  
Driver  
PIN ASSIGNMENT  
4.5 A Peak Source, 9 A Peak Sink Output Current Capability  
INA  
INB  
VDD  
1
2
3
4
5
6
7
8
16  
V
CCA  
Independent UVLO Protections for Both Output Drivers  
Output Supply Voltage from 6.5 V to 30 V with 5V and 8V  
for MOSFET, 13V and 17V UVLO for SiC, Thresholds.  
Common Mode Transient Immunity CMTI > 200 V/ns  
Propagation Delay Typical 38 ns with  
5 ns Max Delay Matching per Channel  
5 ns Max PulseWidth Distortion  
15 OUTA  
14 VSSA  
13 NC  
GND  
ENA/DIS  
DT  
NCP51560  
12 NC  
11  
V
CCB  
NC  
10 OUTB  
VSSB  
User Programmable Input Logic  
DISABLE Mode  
VDD  
9
User Programmable DeadTime  
Isolation & Safety  
5 kV Isolation for 1 Minute (per UL1577 Requirements)  
ORDERING INFORMATION  
See detailed ordering and shipping information on page 28 of  
this data sheet.  
rms  
8000 V Reinforced Isolation Voltage (per VDE088411  
PK  
Requirements)  
CQC Certification per GB4943.12011  
SGS FIMO Certification per IEC 623861  
These are PbFree Devices  
Typical Applications  
Motor Drives  
Isolated Converters in DCDC and ACDC Power Supply  
Server, Telecom, and Industrial Infrastructures  
Semiconductor Components Industries, LLC, 2021  
1
Publication Order Number:  
October, 2022 Rev. 1  
NCP51560/D  
NCP51560  
TYPICAL APPLICATION CIRCUIT  
VDD  
HV Rail  
16  
15  
14  
13  
PWMA  
PWMB  
VDD  
1
2
3
4
5
6
7
8
INA  
INB  
VDD  
VCCA  
OUTA  
VSSA  
GND  
NC  
GND  
To Load  
ENA  
NC 12  
ENA/DIS  
DT  
VCCB 11  
V
CC  
10  
9
NC  
OUTB  
VSSB  
VDD  
(a) High and Low Side MOSFET Gate Drive for ENABLE Version  
VDD  
HV Rail  
16  
15  
14  
13  
1
2
3
4
5
6
7
8
PWMA  
PWMB  
VDD  
INA  
INB  
VDD  
VCCA  
OUTA  
VSSA  
GND  
NC  
GND  
To Load  
ENA  
ENA/DIS  
DT  
NC 12  
VCCB 11  
V
CC  
10  
9
NC  
OUTB  
VSSB  
VDD  
(b) High and Low Side MOSFET Gate Drive for DISABLE Version  
Figure 1. Application Schematic  
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2
NCP51560  
FUNCTIONAL BLOCK DIAGRAM  
VDD  
VDD UVLO  
VCCA  
OUTA  
VSSA  
UVLO  
INA  
INB  
INA  
(PWM)  
INA  
LOGIC  
Tx  
Rx  
INB  
(NC)  
LOGIC  
NC  
NC  
VDD  
Functional  
Isolation  
ENA/DIS  
VCCB  
OUTB  
VSSB  
UVLO  
NC  
DT  
INB  
DEAD  
TIME  
CONTROL  
LOGIC  
Tx  
Rx  
GND  
(a) For Only ENABLE (NCP51560xA) Version  
VDD  
VDD UVLO  
VCCA  
OUTA  
VSSA  
UVLO  
INA  
INB  
INA  
LOGIC  
INA  
INB  
Tx  
Rx  
LOGIC  
NC  
NC  
Functional  
Isolation  
ENA/DIS  
VCCB  
OUTB  
VSSB  
NC  
UVLO  
INB  
DEAD  
TIME  
CONTROL  
LOGIC  
Tx  
Rx  
DT  
GND  
(b) For Only DISABLE (NCP51560xB) Version  
Figure 2. Simplified Block Diagram  
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3
NCP51560  
FUNCTIONAL TABLE  
INPUT  
UVLO  
Output Side  
Channel A Channel B  
GATE DRIVE OUTPUT  
ENA/DIS (Note 3)  
Input Side  
(V  
CCA  
)
(V  
CCB  
)
ENABLE  
DISABLE  
(V  
DD  
)
INA  
X
INB  
X
OUTA  
OUTB  
X
X
H
H
H
H
L
X
X
L
L
L
L
H
L
L
L
Active  
X
X
X
L
L
X
X
Active  
Active  
Active  
Inactive  
Inactive  
Active  
L
L
X
L
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
L
L
X
H
X
Active  
L
H
L
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
L
L
H
X
X
Active  
H
L
X
Inactive  
Inactive  
Inactive  
Inactive  
Inactive  
L
L
H
H
H
L
L
L
L
L
H
H
L
H
H
L (Note 4)  
H (Note 5)  
L (Note 4)  
H (Note 5)  
1. “L” means that LOW, “H” means that HIGH and X: Any Status  
2. Inactive means that V , V , and V are above UVLO threshold voltage (Normal operation)  
DD  
CCA  
CCB  
Active means that UVLO disables the gate driver output stage.  
3. Disables both gate drive output when the ENA/DIS pin is LOW in ENABLE version, which is default is HIGH, if this pin is open.  
Enables both gate drive output when the ENA/DIS pin is LOW in DISABLE version, which is default is LOW, if this pin is open.  
4. DT pin is left open or programmed with R  
.
DT  
5. DT pin pulled to V  
.
DD  
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4
 
NCP51560  
PIN CONNECTIONS  
V
1
2
3
4
5
6
7
8
INA  
INB  
VDD  
16  
CCA  
OUTA 15  
VSSA 14  
NC 13  
GND  
ENA/DIS  
DT  
NC 12  
V
11  
OUTB 10  
VSSB  
CCB  
NC  
VDD  
9
Figure 3. Pin Connections – SOIC16 WB (Top View)  
PIN DESCRIPTION  
Pin No.  
Symbol  
INA  
I/O  
Description  
Logic Input for Channel A with internal pulldown resistor to GND  
Logic Input for Channel B with internal pulldown resistor to GND.  
Inputside Supply Voltage.  
1
2
Input  
Input  
Power  
INB  
3, 8  
V
DD  
It is recommended to place a bypass capacitor from V to GND.  
DD  
4
5
GND  
Power  
Input  
Ground Inputside. (all signals on inputside are referenced to this pin)  
ENA/DIS  
Logic Input High Enables Both Output Channels with Internal pullup resistor for an ENABLE  
version. Conversely, Logic Input High disables Both Output Channels with Internal pulldown  
resistor for the DISABLE version.  
6
DT  
Input  
Input for programmable DeadTime  
It provides three kind of operating modes according to the DT pin voltage as below.  
ModeA: Crossconduction both channel outputs is not allowed even though deadtime is less  
than maximum 20 ns when the DT pin is floating (Open).  
ModeB: Deadtime is adjusted according to an external resistance (R ).  
DT  
t
DT  
(in ns) = 10 x R (in kW)  
DT  
Recommended deadtime resistor (R ) values are between 1 kW and 300 kW.  
DT  
MODEC: Crossconduction both channel outputs is allowed when the DT pin pulled to V  
.
DD  
7
9
NC  
No Connection; Keep pin floating.  
VSSB  
OUTB  
Power  
Output  
Power  
Ground for Channel B  
10  
11  
Output for Channel B  
V
CCB  
Supply Voltage for Output Channel B.  
It is recommended to place a bypass capacitor from V  
No Connection; Keep pin floating  
Ground for Channel A  
to VSSB.  
to VSSA.  
CCB  
12, 13  
14  
NC  
VSSA  
OUTA  
Power  
Output  
Power  
15  
Output of Channel A  
16  
V
CCA  
Supply Voltage for Output Channel A.  
It is recommended to place a bypass capacitor from V  
CCA  
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5
NCP51560  
SAFETY AND INSULATION RATINGS  
Symbol  
Parameter  
Min.  
Typ.  
Max.  
Unit  
Installation Classifications per DIN VDE 0110/1.89  
Table 1 Rated Mains Voltage  
IIV  
< 150 VRMS  
< 300 VRMS  
< 450 VRMS  
< 600 VRMS  
< 1000 VRMS  
IIV  
IIV  
IIV  
IIII  
Comparative Tracking Index (DIN IEC 112/VDE 0303 Part 1)  
Climatic Classification  
600  
40/125/21  
CTI  
2
Pollution Degree (DIN VDE 0110/1.89)  
Input*to*Output Test Voltage, Method b, VIORM 1.875 = VPR, 100%  
Production Test with tm = 1 s, Partial Discharge < 5 pC  
V
PK  
VPR  
2250  
V
VIORM  
VIOWM  
VIOTM  
ECR  
Maximum Repetitive Peak Isolation Voltage  
Maximum Working Isolation Voltage  
Maximum Transient Isolation Voltage  
External Creepage  
1200  
1200  
8000  
8.0  
PK  
V
DC  
V
PK  
mm  
mm  
mm  
ECL  
External Clearance  
8.0  
DTI  
Insulation Thickness  
17.3  
9
RIO  
Insulation Resistance at T , VIO = 500 V  
10  
S
UL1577  
V
TEST  
V
TEST  
= V  
= 5000 V  
ISO  
, t = 60 sec. (qualification),  
RMS  
Withstand  
isolation voltage  
ISO  
RMS  
VISO  
5000  
V
RMS  
= 1.2V  
= 6000 V  
, t = 1 sec (100% production)  
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6
NCP51560  
SAFETY LIMITING VALUE  
Symbol  
Parameter  
Side  
Min  
Typ  
Max  
88  
Unit  
P
S
Safety Supply Power  
Maximum Values in Failure; Input Power  
Maximum Values in Failure; Output Power  
Maximum Values in Failure; Total Power  
P
mW  
S,INPUT  
P
S,OUT  
1412  
1500  
150  
P
S,TOTAL  
T
S
Safety Temperature  
Maximum Values in Failure; Case  
Temperature  
C  
MAXIMUM RATINGS  
Symbol  
Parameter  
Min  
0.3  
0.3  
0.3  
Max  
Unit  
V
V
DD  
to GND  
Power Supply Voltage – Input Side (Note 7)  
Power Supply Voltage – Driver Side (Note 8)  
Driver Output Voltage (Note 8)  
5.5  
33  
V
CCA  
– VSSA, V  
– VSSB  
V
CCB  
OUTA to VSSA, OUTB to VSSB  
V
V
+ 0.3,  
+ 0.3  
V
CCA  
CCB  
OUTA to VSSA, OUTB to VSSB,  
Transient for 200 ns (Note 9)  
2  
V
+ 0.3,  
+ 0.3  
V
CCA  
CCB  
V
INA and INB  
ENA/DIS  
Input Signal Voltages (Note 7)  
Input Signal Voltages (Note 7)  
5  
0.3  
5  
20  
V
V
V
5.5  
5.5  
ENA/DIS Transient for 50ns (Note  
9)  
DT  
Dead Time Control (Note 7)  
Channel to Channel Voltage  
Junction Temperature  
Storage Temperature  
0.3  
1500  
40  
65  
V
DD  
+ 0.3  
V
VSSAVSSB, VSSBVSSA  
V
T
J
+150  
+150  
2  
C  
C  
kV  
kV  
T
S
Electrostatic  
Discharge  
Capability  
HBM (Note 10)  
CDM (Note 10)  
Human Body Model  
Charged Device Model  
1  
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.  
6. Refer to ELECTRICAL CHARACTERISTICS, RECOMMENDED OPERATING RANGES and/or APPLICATION INFORMATION for Safe  
Operating parameters.  
7. All voltage values are given with respect to GND pin.  
8. All voltage values are given with respect to VSSA or VSSB pin.  
9. This parameter verified by design and bench test, not tested in production.  
10.This device series incorporates ESD protection and is tested by the following methods:  
ESD Human Body Model tested per AECQ100002 (EIA/JESD22A114)  
ESD Charged Device Model tested per AECQ100011 (EIA/JESD22C101)  
Latch up Current Maximum Rating: 100 mA per JEDEC standard: JESD78F.  
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7
 
NCP51560  
RECOMMENDED OPERATING CONDITIONS  
Symbol  
Rating  
Min  
3.0  
6.5  
9.5  
14.5  
18.5  
0
Max  
5.0  
30  
Unit  
V
V
DD  
Power Supply Voltage – Input Side  
Power Supply Voltage – Driver Side  
V
, V  
CCB  
5V UVLO Version  
V
CCA  
8V UVLO Version  
13V UVLO Version  
17V UVLO Version  
30  
V
30  
V
30  
V
V
IN  
Logic Input Voltage at Pins INA, and INB  
Logic Input Voltage at Pin ENA/DIS  
Ambient Temperature  
18  
V
V
0
5.0  
+125  
+125  
V
ENA/DIS  
T
A
40  
40  
_C  
_C  
T
J
Junction Temperature  
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond  
the Recommended Operating Ranges limits may affect device reliability.  
THERMAL CHARACTERISTICS  
Symbol  
Rating  
Condition  
Value  
Unit  
2
R
Thermal Characteristics, (Note 12)  
Thermal Resistance JunctionAir  
16SOICWB  
100 mm , 1 oz Copper, 1 Surface Layer (1S0P)  
120  
81  
C/W  
q
JA  
2
100 mm , 2 oz Copper, 1 Surface Layer (1S0P)  
2
Thermal Resistance JunctionCase  
Thermal Resistance JunctiontoTop  
Thermal Resistance JunctiontoBoard  
100 mm , 1 oz Copper, 1 Surface Layer (1S0P)  
38  
18  
55  
C/W  
C/W  
C/W  
W
R
q
JC  
Y
Y
JT  
JB  
2
P
Power Dissipation (Note 12)  
16SOICWB  
100 mm , 1 oz Copper, 1 Surface Layer (1S0P)  
0.8  
1.5  
D
2
100 mm , 2 oz Copper, 1 Surface Layer (1S0P)  
11. Refer to ELECTRICAL CHARACTERISTICS, RECOMMENDED OPERATING RANGES and/or APPLICATION INFORMATION for Safe  
Operating parameters.  
12.JEDEC standard: JESD512, and JESD513.  
ISOLATION CHARACTERISTICS  
Symbol  
Parameter  
Condition  
T = 25C, Relative Humidity < 50%,  
Min  
Typ  
Max  
Unit  
V
Input to Output Isolation Voltage  
V
RMS  
ISO,INPUT TO  
OUTPUT  
A
5000  
t = 1.0 minute, I  
10 A, 50 Hz  
O
*
I
(Notes 13, 14, 15)  
V
OUTA to OUTB Isolation Voltage  
Isolation Resistance  
V
DC  
ISO,OUTA TO  
OUTB  
1500  
11  
R
ISO  
V
I_O  
= 500 V (Note 13)  
10  
13.Device is considered a two*terminal device: pins 1 to 8 are shorted together and pins 9 to 16 are shorted together for input to output isolation  
test, and pins 9 to 11 are shorted together and pins 14 to 16 are shorted together for between channel isolation test.  
14.5,000 V  
for 1*minute duration is equivalent to 6,000 V  
for 1*second duration for input to output isolation test,  
RMS  
RMS  
and Impulse Test > 10 ms; sample tested for between channel isolation test.  
15.The input*output isolation voltage is a dielectric voltage rating per UL1577. It should not be regarded as an input*output continuous voltage  
rating. For the continuous working voltage rating, refer to equipment*level safety specification or DIN VDE V 0884*11 Safety and Insulation  
Ratings Table  
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8
 
NCP51560  
ELECTRICAL CHARACTERISTICS (V = 5 V, V  
= V  
= 12 V, or 20 V (Note 17) and VSSA = VSSB, for typical values  
DD  
CCA  
CCB  
T = T = 25C, for min/max values T = 40C to +125C, unless otherwise specified. (Note 16)  
J
A
J
Symbol  
Parameter  
Condition  
Min  
Typ  
Max  
Unit  
PRIMARY POWER SUPPLY SECTION (V  
)
DD  
V
= V  
DISABLE  
= 0 V, V  
= V  
DD  
500  
500  
7
780  
820  
12  
1000  
1000  
16  
mA  
mA  
mA  
mA  
V
I
V
Quiescent Current  
INA  
or V  
INB  
ENABLE  
QVDD  
DD  
= 0 V  
V
= V  
= 5 V, V  
= 0 V  
INA  
INB  
ENABLE  
or V  
= V  
DISABLE  
DD  
V
= V  
DISABLE  
= 5 V, V  
= 0 V  
= V  
ENABLE DD  
INA  
INB  
or V  
I
V
V
Operating Current  
f = 500 kHz, 50% duty cycle,  
IN  
C
5.0  
2.7  
2.6  
7.15  
2.8  
9.0  
2.9  
2.8  
VDD  
DD  
= 100 pF  
OUT  
V
V
Supply UnderVoltage PositiveGoing  
V
DD  
V
DD  
V
DD  
= Sweep  
= Sweep  
= Sweep  
DDUV+  
DDUV  
DDHYS  
DD  
Threshold  
V
DD  
Supply UnderVoltage NegativeGoing  
2.7  
V
Threshold  
V
V
DD  
Supply UnderVoltage Lockout Hysteresis  
0.1  
V
SECONDARY POWER SUPPLY SECTION (V  
AND V  
)
CCA  
CCB  
V
V
= V  
= V  
= 0 V, per channel  
200  
300  
2.0  
280  
410  
3.0  
500  
600  
5.5  
mA  
mA  
I
I
V
and V  
Quiescent Current  
INA  
INB  
QVCCA  
QVCCB  
CCA  
CCA  
CCB  
= 5 V, per channel  
INA  
INB  
I
I
V
and V  
Operating Current  
Current per channel (f = 500 kHz,  
50% duty cycle), C  
mA  
VCCA  
VCCB  
CCB  
IN  
OUT  
= 100 pF  
VCCA and VCCB UVLO THRESHOLD (5V UVLO VERSION)  
V
V
V
and V Supply UnderVoltage  
CCB  
5.7  
5.4  
6.0  
5.7  
6.3  
6.0  
V
V
CCAUV+  
CCBUV+  
CCA  
PositiveGoing Threshold  
V
V
V
CCA  
and V  
Supply UnderVoltage  
CCAUV−  
CCBUV−  
CCB  
NegativeGoing Threshold  
V
UnderVoltage Lockout Hysteresis  
UnderVoltage Debounce Time (Note 18)  
0.3  
V
CCHYS  
t
10  
ms  
UVFLT  
VCCA and VCCB UVLO THRESHOLD (8V UVLO VERSION)  
V
V
V
and V Supply UnderVoltage  
CCB  
8.3  
7.8  
8.7  
8.2  
9.2  
8.7  
V
V
CCAUV+  
CCBUV+  
CCA  
PositiveGoing Threshold  
V
V
V
CCA  
and V  
Supply UnderVoltage  
CCAUV−  
CCBUV−  
CCB  
NegativeGoing Threshold  
V
UnderVoltage Lockout Hysteresis  
UnderVoltage Debounce Time (Note 18)  
0.5  
V
CCHYS  
t
10  
ms  
UVFLT  
VCCA and VCCB UVLO THRESHOLD (13V UVLO VERSION)  
V
V
V
and V Supply UnderVoltage  
CCB  
12  
11  
13  
12  
14  
13  
V
V
CCAUV+  
CCBUV+  
CCA  
PositiveGoing Threshold  
V
V
V
CCA  
and V  
Supply UnderVoltage  
CCAUV−  
CCBUV−  
CCB  
NegativeGoing Threshold  
V
UnderVoltage Lockout Hysteresis  
UnderVoltage Debounce Time (Note 18)  
1
V
CCHYS  
t
10  
ms  
UVFLT  
VCCA and VCCB UVLO THRESHOLD (17V UVLO VERSION)  
V
V
V
and V Supply UnderVoltage  
CCB  
16  
15  
17  
16  
18  
17  
V
V
CCAUV+  
CCBUV+  
CCA  
PositiveGoing Threshold  
V
V
V
CCA  
and V  
Supply UnderVoltage  
CCAUV−  
CCBUV−  
CCB  
NegativeGoing Threshold  
V
UnderVoltage Lockout Hysteresis  
UnderVoltage Debounce Time (Note 18)  
1
V
CCHYS  
t
10  
ms  
UVFLT  
LOGIC INPUT SECTION (INA, AND INB)  
V
High Level Input Voltage  
Low Level Input Voltage  
1.4  
0.9  
1.6  
1.1  
1.8  
1.3  
V
V
INH  
V
INL  
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9
NCP51560  
ELECTRICAL CHARACTERISTICS (V = 5 V, V  
= V  
= 12 V, or 20 V (Note 17) and VSSA = VSSB, for typical values  
DD  
CCA  
CCB  
T = T = 25C, for min/max values T = 40C to +125C, unless otherwise specified. (Note 16) (continued)  
J
A
J
Symbol  
Parameter  
Condition  
Min  
Typ  
Max  
Unit  
LOGIC INPUT SECTION (INA, AND INB)  
V
Input Logic Hysteresis  
20  
0.5  
25  
V
INHYS  
I
I
High Level Logic Input Bias Current  
Low Level Logic Input Bias Current  
Logic Input PullDown Resistance  
V
V
= 5 V  
= 0 V  
33  
mA  
mA  
kW  
IN+  
IN  
1.0  
250  
IN−  
IN  
R
150  
200  
IN  
LOGIC INPUT SECTION (for ENABLE Version only)  
V
Enable High Voltage  
Enable Low Voltage  
Enable Logic Hysteresis  
1.4  
0.9  
1.6  
1.1  
0.5  
1.8  
1.3  
V
V
V
ENAH  
V
ENAL  
V
ENAHYS  
LOGIC INPUT SECTION (for DISABLE Version only)  
V
Disable High Voltage  
Disable Low Voltage  
Disable Logic Hysteresis  
1.4  
0.9  
1.6  
1.1  
0.5  
1.8  
1.3  
V
V
V
DISH  
V
DISL  
V
DISHYS  
DEADTIME AND OVERLAP SECTION  
t
Minimum DeadTime  
DeadTime  
DT pin is left open  
0
10  
200  
1000  
29  
255  
1200  
30  
ns  
ns  
ns  
ns  
ns  
V
DT,MIN  
145  
800  
30  
150  
t
DT  
R
DT  
R
DT  
R
DT  
R
DT  
= 20 kW  
= 100 kW  
= 20 kW  
= 100 kW  
Dt  
DT  
DeadTime Mismatch between OUTB OUTA  
and OUTA OUTB  
150  
0.95x  
V
DT Threshold Voltage for OUTA & OUTB  
Overlap  
0.85x 0.9xV  
DD  
DT,SHORT  
V
DD  
V
DD  
GATE DRIVE SECTION  
I
OUTA and OUTB Source Peak Current  
(Note 18)  
V
V
= V  
= V  
= 5 V, PW 5 ms  
= 0 V, PW 5 ms  
2.6  
7.0  
4.5  
9.0  
A
A
OUTA+,  
OUTB+  
INA  
INB  
I
I
I
OUTA and OUTB Sink Peak Current (Note 18)  
OUTA,  
OUTB−  
INA  
INB  
R
Output Resistance at High State  
Output Resistance at Low State  
I
I
I
I
= 100 mA  
= 100 mA  
1.4  
0.5  
2.7  
1.0  
W
W
OH  
OUTH  
R
OL  
OUTL  
V
V
High Level Output Voltage (V  
V  
)
= 100 mA  
= 100 mA  
270  
100  
mV  
mV  
OHA, OHB  
CCX  
OUTX  
OUT  
OUT  
V
V
Low Level Output Voltage (V  
V )  
SSX  
OLA, OLB  
OUTX  
DYNAMIC ELECTRICAL CHARACTERISTICS  
V
CCA  
V
CCA  
V
CCA  
V
CCA  
= V  
= V  
= V  
= V  
= 12 V, C  
= 0 nF  
= 0 nF  
= 0 nF  
= 0 nF  
24  
27  
24  
27  
38  
41  
38  
41  
57  
60  
57  
60  
t
TurnOn Propagation Delay from INx to OUTx  
TurnOff Propagation Delay from INx to OUTx  
CCB  
CCB  
CCB  
CCB  
LOAD  
LOAD  
LOAD  
LOAD  
PDON  
ns  
ns  
ns  
ns  
= 20 V, C  
= 12 V, C  
= 20 V, C  
t
PDOFF  
t
Pulse Width Distortion (t  
– t )  
PDOFF  
5  
5  
5
5
ns  
ns  
PWD  
PDON  
t
Propagation Delay Mismatching between  
Channels  
INA and INB shorted,  
= 100 kHz  
DM  
f
IN  
t
Powerup Delay from the V  
to Output  
See the Figure 52  
18  
9
ms  
ns  
ns  
ns  
ns  
VPOR to OUT  
POR  
(Note 18)  
V
= V = 12 V,  
LOAD  
16  
19  
16  
19  
t
R
TurnOn Rise Time  
CCA  
CCB  
C
= 1.8 nF  
V
= V  
LOAD  
= 20 V,  
11  
8
CCA  
CCB  
C
= 1.8 nF  
V
= V  
LOAD  
= 12 V,  
t
F
TurnOff Fall Time  
CCA  
CCB  
C
= 1.8 nF  
V
= V  
LOAD  
= 20 V,  
10  
CCA  
CCB  
C
= 1.8 nF  
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10  
NCP51560  
ELECTRICAL CHARACTERISTICS (V = 5 V, V  
= V  
= 12 V, or 20 V (Note 17) and VSSA = VSSB, for typical values  
DD  
CCA  
CCB  
T = T = 25C, for min/max values T = 40C to +125C, unless otherwise specified. (Note 16) (continued)  
J
A
J
Symbol  
Parameter  
Condition  
Min  
Typ  
Max  
Unit  
DYNAMIC ELECTRICAL CHARACTERISTICS  
24  
27  
38  
41  
15  
57  
60  
30  
ns  
ns  
ns  
T
ENABLE or DISABLE to OUTx TurnOn/Off  
ENABLE,OUT,  
DISABLE,OUT  
V
V
= V  
= V  
= 12 V  
= 20 V  
CCA  
CCB  
T
Propagation Delay  
CCA  
CCB  
t
Minimum Input Pulse Width that Change  
Output State  
C
= 0 nF  
PW  
LOAD  
CMTI  
Common Mode Transient Immunity  
(Note 18)  
Slew rate of GND versus VSSA  
and VSSB. INA and INB both are  
200  
V/ns  
tied to V or GND. V = 1500 V  
DD  
CM  
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.  
16.Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at T = T = 25C.  
J
A
17.V  
= V  
= 12 V is used for the test condition of 8V UVLO, V  
= V  
= 20 V is used for 17V UVLO.  
CCA  
CCB  
CCA  
CCB  
18.These parameters are verified by bench test only and not tested in production.  
INSULATION CHARACTERISTICS CURVES  
80  
70  
60  
50  
40  
30  
20  
10  
0
1800  
IVCCA/B for V = 12 V  
1600  
1400  
1200  
1000  
800  
600  
400  
200  
0
CC  
IVCCA/B for V = 33 V  
CC  
0
25  
50  
75  
100  
125  
150  
200  
0
25  
50  
75  
100  
125  
150  
200  
Ambient Temperature [5C]  
Ambient Temperature [5C]  
Figure 4. Thermal Derating Curve for Safetyrelated  
Limiting Current (Current in Each Channel with  
Both Channels Running Simultaneously)  
Figure 5. Thermal Derating Curve for  
Safetyrelated Limiting Power  
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11  
 
NCP51560  
TYPICAL CHARACTERISTIC  
Figure 6. Quiescent VDD Supply Current vs. Temperature  
Figure 7. Quiescent VDD Supply Current vs.  
Temperature (VDD = 5 V,  
INA = INB = ENA/DIS = 5 V and No Load)  
(VDD = 5 V, INA = INB = 0 V, ENA/DIS = 5 V or,  
INA = INB = 5 V, ENA/DIS = 0 V and No Load)  
Figure 8. VDD Operating Current vs.  
Temperature (VDD = 5 V, No Load, and  
Switching Frequency = 500 kHz)  
Figure 9. VDD Operating Current vs.  
Temperature (VDD = 5 V, No Load, and  
Different Switching Frequency)  
Figure 10. Per Channel VDD Operating Current vs.  
Temperature (VDD = 5 V, No Load, and Different  
Switching Frequency  
Figure 11. Per Channel Quiescent VCC Supply Current  
vs. Temperature (INA = INB = 0 V or 5 V, ENA/DIS = 5 V  
and No Load  
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12  
NCP51560  
TYPICAL CHARACTERISTIC (CONTINUED)  
Figure 12. Per Channel VCC Operating  
Current vs. Temperature (No Load and  
Switching Frequency = 500 kHz  
Figure 13. Per Channel Operating Current vs.  
Frequency (No Load, VCCA = VCCB = 12 V, or 25 V)  
Figure 14. Per Channel Operating Current vs.  
Frequency (CLOAD = 1 nF, VCCA = VCCB = 12 V, or 25 V)  
Figure 15. Per Channel Operating Current vs.  
Frequency (CLOAD = 1.8 nF, VCCA = VCCB = 12 V, or 25 V)  
Figure 16. Per Channel VCC Quiescent Current vs.  
Figure 17. Per Channel VCC Quiescent Current vs.  
V
CC Supply Voltage (INA = INB = 0 V, ENA = 5 V)  
VCC Supply Voltage (INA = INB = 5 V, ENA = 5 V)  
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13  
NCP51560  
TYPICAL CHARACTERISTIC (CONTINUED)  
Figure 18. VDD UVLO Threshold vs. Temperature  
Figure 19. VDD UVLO Hysteresis vs. Temperature  
Figure 20. VCC 5V UVLO Threshold vs. Temperature  
Figure 21. VCC 5V UVLO Hysteresis vs. Temperature  
Figure 22. VCC 8V UVLO Threshold vs. Temperature  
Figure 23. VCC 8V UVLO Hysteresis vs. Temperature  
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14  
NCP51560  
TYPICAL CHARACTERISTIC (CONTINUED)  
Figure 24. VCC 13V UVLO Threshold vs. Temperature  
Figure 25. VCC 13V UVLO Hysteresis vs. Temperature  
Figure 26. VCC 17V UVLO Threshold vs. Temperature  
Figure 27. VCC 17V UVLO Hysteresis vs. Temperature  
Figure 28. Output Current vs. VCC Supply Voltage  
Figure 29. ENA/DIS Delay Time vs. Temperature  
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15  
NCP51560  
Figure 30. Input Logic Threshold vs. Temperature  
Figure 31. Input Logic Hysteresis vs. Temperature  
(INA, and INB)  
(INA, and INB)  
Figure 32. ENA/DIS Threshold vs. Temperature  
(ENABLE, and DISABLE)  
Figure 33. ENA/DIS Hysteresis vs. Temperature  
(ENABLE, and DISABLE)  
Figure 34. Rise/Fall Time vs. Temperature  
(CLOAD = 1.8 nF)  
Figure 35. Rise/Fall Time vs. Temperature  
(VCC = VCCB = 12 V, and Different Load)  
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16  
NCP51560  
TYPICAL CHARACTERISTIC (CONTINUED)  
Figure 36. Dead Time vs. Temperature  
Figure 37. Dead Time vs. Temperature  
(RDT = Open)  
(RDT = 100kW)  
Figure 38. Dead Time Mismatching vs. Temperature  
Figure 39. Dead Time vs. RDT  
Figure 40. Turnon Propagation Delay vs.  
Figure 41. Turnoff Propagation Delay vs.  
Temperature  
Temperature  
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17  
NCP51560  
TYPICAL CHARACTERISTIC (CONTINUED)  
Figure 42. Pulse Width Distortion vs. Temperature  
Figure 43. Propagation Delay Matching vs.  
Temperature  
Figure 44. Turnon Propagation Delay vs. VCC  
Figure 45. Turnoff Propagation Delay vs. VCC  
Supply Voltage  
Supply Voltage  
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18  
NCP51560  
PARAMETER MEASUREMENT DEFINITION  
Switching Time Definitions  
output signals OUTA, OUTB. The typical values of the  
propagation delay (t , T ), pulse width distortion  
Figure 46 shows the switching time definitions of the  
turnon (t ) and turnoff (t ) propagation delay  
PDON PDOFF  
(t  
) and delay matching between channels times are  
PDON  
PDOFF  
PWD  
time among the driver’s two input signals INA, INB and two  
specified in the electrical characteristics table.  
VINH  
INA  
VINL  
(INB)  
tPDON  
tPDOFF  
90%  
90%  
OUTA  
(OUTB)  
10%  
10%  
tF  
tR  
Figure 46. Switching Time Definitions  
Enable and Disable Function  
Figure 47 shows the response time according to an  
ENABLE or the DISABLE operating modes. If the  
ENA/DIS pin voltage goes to LOW state, i.e. V  
shuts down both outputs simultaneously and Pull the  
operate normally in an ENABLE mode as shown in  
Figure 47 (a). Conversely, if the ENA/DIS pin voltage goes  
to HIGH state, i.e. V  
1.6 V shuts down both outputs  
DIS  
1.1 V  
simultaneously and Pull the ENA/DIS pin LOW (or left  
open), i.e. V 1.1 V operate normally in the DISABLE  
ENA  
DIS  
ENA/DIS pin HIGH (or left open), i.e. V  
1.6 V to  
mode as shown in Figure 47 (b).  
ENA  
INA  
(INB)  
VENAH  
ENA/DIS  
(ENABLE)  
VENAL  
ENABLE low response time  
90%  
ENABLE high response time  
OUTA  
(OUTB)  
10%  
(a) ENABLE Version  
INA  
(INB)  
VDISH  
ENA/DIS  
V
INH  
(DISABLE)  
DISABLE high response time  
90%  
DISABLE low response time  
OUTA  
(OUTB)  
10%  
(b) DISABLE Version  
Figure 47. Timing Chart of Enable and Disable Function  
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19  
 
NCP51560  
Programmable DeadTime  
DT2). Otherwise, if the external input signal dead times are  
larger than internal deadtime, the dead time is not modified  
by the gate driver and internal deadtime definition as  
shown in Figure 48.  
Dead time is automatically inserted whenever the dead  
time of the external two input signals (between INA and INB  
signals) is shorter than internal setting dead times (DT1 and  
INA  
INB  
90%  
10%  
OUTB  
DT1  
DT2  
OUTA  
90%  
10%  
Figure 48. Internal DeadTime Definitions  
Figure 49 shows the definition of internal dead time and  
shootthrough prevention when input signals applied at  
same time.  
Case A  
CaseB  
CaseC  
CaseC  
CaseE  
INA  
INB  
ShootThrough  
Prevention  
DT  
DT  
DT  
DT  
DT  
DT  
DT  
DT  
DT  
DT  
TRIG_INA  
TRIG_INB  
VDT  
Timer_Cap  
OUTA  
OUTB  
Dead Time  
ShootThrough Prevention  
Gate Driver Output OFF  
Case – A : Control signal edges overlapped, but inside the deadtime (DeadTime)  
Case – B : Control signal edges overlapped, but outside the deadtime (ShootThrough)  
Case – C : Control signal edges synchronous (DeadTime)  
Case – D : Control signal edges not overlapped, but inside the deadtime (DeadTime )  
Case – E : Control signal edges not overlapped, but outside the deadtime (Direct Drive)  
Figure 49. Internal DeadTime Definitions  
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20  
 
NCP51560  
DEVICE INFORMATION  
Input to Output Operation Definitions  
The NCP51560 provides important protection functions  
such as independent undervoltage lockout for both gate  
driver; enable or disable function and deadtime control  
function. Figure 50 shows an overall input to output timing  
diagram when shutdown mode via ENA/DIS pin in the  
CASEA, and UnderVoltage Lockout protection on the  
primaryand secondarysides power supplies events in the  
CASEB. The gate driver output (OUTA and OUTB) were  
turnoff when crossconduction event at the dead time  
control mode in the CASEC.  
A
B
C
INA  
INB  
ENA/DIS  
(ENABLE)  
Shutdown  
Shutdown  
ENA/DIS  
(DISABLE)  
VDDUV+  
VDD  
VDDUV−  
ShootThrough  
(VCCA, VCCB  
)
Prevention  
UVLO  
OUTA  
OUTB  
DT DT  
Figure 50. Overall Operating Waveforms Definitions at the DeadTime Control Mode  
Input and Output Logic Table  
Table 1 shows an input to output logic table according to  
the dead time control modes and an enable or the disable  
operation mode.  
Table 1. INPUT AND OUTPUT LOGIC TABLE  
INPUT  
OUTPUT  
ENA/DIS  
ENABLE  
H or Left open  
H or Left open  
H or Left open  
H or Left open  
H or Left open  
H or Left open  
L
DISABLE  
L or Left open  
L or Left open  
L or Left open  
L or Left open  
L or Left open  
L or Left open  
H
INA  
INB  
OUTA  
OUTB  
NOTE  
L
L
L
L
L
H
L
Programmable dead time control with R .  
DT  
L
H
H
L
H
L
H
H
L
DT pin is left open Or programmed with R .  
DT  
H
Left open  
X
H
Left open  
X
H
L
H
L
DT pin pulled to V  
.
DD  
L
L
19.X” means L, H or left open.  
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21  
 
NCP51560  
PROTECTION FUNCTION  
channel supply voltages in secondaryside (e.g. V  
, and  
CCA  
The NCP51560 provides the protection features include  
enable or disable function, Cross Conduction Protection,  
and UnderVoltage Lockout (UVLO) of power supplies on  
V
) need to be greater than specified UVLO threshold  
CCB  
level in secondaryside to let the output operate per input  
signal. The typical V UVLO threshold voltage levels for  
each option are per below Table 2.  
CCx  
primaryside (V ), and secondaryside both channels  
DD  
(V  
, and V ).  
CCB  
CCA  
Table 2. VCCx UVLO OPTION TABLE  
UnderVoltage Lockout Protection VDD and VCCx  
The NCP51560 provides the UnderVoltage Lockout  
Option  
5V  
V
CC  
UVLO Level  
Unit  
V
(UVLO) protection function for V in primaryside and  
DD  
6.0  
8.7  
13  
both gate drive output for V  
and V  
in  
CCA  
CCB  
8V  
V
secondaryside as shown in Figure 51.  
13V  
17V  
V
The gate driver is running when the V supply voltage  
DD  
is greater than the specified undervoltage lockout threshold  
voltage (e.g. typically 2.8 V) and ENA/DIS pin is HIGH or  
LOW states for an ENABLE (e.g. NCP51560xA) or the  
DISABLE (e.g. NCP51560xB) mode respectively.  
17  
V
UVLO protection has an hysteresis to provide immunity  
to short V drops that can occur.  
CC  
In addition, both gate output drivers have independent  
under voltage lockout protection (UVLO) function and each  
Figure 51. Timing Chart UnderVoltage Lockout Protection  
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22  
 
NCP51560  
PowerUp VCC UVLO Delay to OUTPUT  
To provide a variety of UnderVoltage Lockout (UVLO)  
thresholds NCP51560 has a powerup delay time during  
poweron reset (POR) threshold to output and it is defined  
as t . (e.g. typically 18 ms). Figure 52 shows the  
VPOR to OUT  
initial V  
startup or after POR event.  
powerup UVLO delay time diagram for V  
.
CCX  
CC  
Before the gate driver is ready to deliver a proper output  
state, there is a powerup delay time from the V  
CC  
Figure 52. Timing VCC PowerUp UVLO Delay Time  
CrossConduction Prevention and Allowed  
Overlapped Operation  
For full topologies flexibility, cross conduction can be  
allowed both highand lowside switches conduct at the  
The cross conduction prevents both highand lowside  
switches from conducting at the same time when the dead  
time (DT) control mode is in halfbridge type, as shown in  
Figure 53.  
same time when the DT pin is pulled to V for example, as  
DD  
shown in Figure 54.  
INA  
INA  
INB  
INB  
Allowed Overlap  
Operation  
ShootThrough  
Prevent  
DT  
DT  
After DT  
OUTA  
OUTB  
OUTA  
OUTB  
(a) In case of ShootThrough  
(b) In case of ShootThrough  
(a) In case of ShootThrough  
(b) In case of ShootThrough  
less than DT  
longer than DT  
less than DT  
longer than DT  
Example A  
Example A  
INA  
INB  
INA  
INB  
Allowed Overlap  
Operation  
ShootThrough  
ShootThrough  
Prevent  
Prevent  
DT  
DT  
OUTA  
OUTB  
OUTA  
OUTB  
Always LOW  
(a) In case of ShootThrough  
(b) In case of ShootThrough  
(a) In case of ShootThrough  
less than DT  
(b) In case of ShootThrough  
less than DT  
longer than DT  
longer than DT  
Example B  
Example B  
Figure 53. Concept of ShootThrough Prevention  
Figure 54. Concept of Allowed the ShootThrough  
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23  
 
NCP51560  
Programmable Dead Time Control  
Crossconduction between both driver outputs (OUTA,  
and OUTB) is not allowed with minimum dead time  
MODEB. Overlap is not allowed when the dead time (DT)  
control mode is activated.  
The dead time (DT) between both outputs is set according  
(t  
) typically 10 ns when the DT pin is open in the  
to: DT (in ns) = 10 x R (in k).  
DTMIN  
DT  
MODEA. External resistance (R ) controls dead time  
Overlap is allowed for both outputs when the DT pin is  
DT  
when the DT pin resistor between 1 kW and 300 kW in the  
pulled to V in the MODEC, as shown in Figure 55.  
DD  
tDT [ns]  
Output Overlap ENABLED  
MODE C – DT pin pull to VDD  
tDT=0 ns  
Minimum Deadtime  
MODE A – DT pin Open  
t
DT=10 ns  
Crossconduction prevention disabled  
Crossconduction prevention active  
3000  
2500  
Deadtime Control Range  
MODE B – 1 kW <RDT<300 kW  
tDT[ns]=10 · RDT [kW]  
Crossconduction prevention active  
2000  
1500  
1000  
500  
0
300  
150  
RDT [kW]  
200  
250  
1
50  
100  
Figure 55. Timing Chart of DeadTime Mode Control  
Common Mode Transient Immunity Testing  
CMTI applies to both rising and falling commonmode  
voltage edges. CMTI is tested with the transient generator  
connected between GND and VSSA and VSSB.  
Figure 56 is a simplified diagram of the Common Mode  
Transient Immunity (CMTI) testing configuration.  
CMTI is the maximum sustainable commonmode  
voltage slew rate while maintaining the correct output.  
(V = 1500 V)  
CM  
VDD  
VCC  
16  
INA  
VCCA  
OUTA  
15  
14  
INB  
OUTA  
VSSA  
VDD  
Monitor V  
VDD  
NC 13  
NC 12  
GND  
ENA/DIS  
DT  
11  
VCCB  
OUTB  
NC  
OUTB 10  
Monitor V  
VDD  
VSSB 9  
1.5 kV  
0 V  
dV/dt  
Common Mode Surge  
Generator  
Figure 56. Common Mode Transient Immunity Test Circuit  
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24  
 
NCP51560  
APPLICATION INFORMATION  
V
DD  
This section provides application guidelines when using  
the NCP51560.  
R1  
R2  
INA  
INB  
1
2
Power Supply Recommendations  
It is important to remember that during the TurnOn of  
switch the output current to the gate is drawn from the V  
INA  
INB  
C1  
C2  
200 kW  
200 kW  
CCA  
pins should be  
and V  
supply pins. The V  
and V  
CCB  
CCA  
CCB  
bypassed with a capacitor with a value of at least ten times  
the gate capacitance, and no less than 100 nF and located as  
close to the device as possible for the purpose of decoupling.  
A low ESR, ceramic surface mount capacitor is necessary.  
We recommend using 2 capacitors; a 100 nF ceramic  
surfacemount capacitor which can be very close to the pins  
of the device, and another surfacemount capacitor of few  
microfarads added in parallel.  
V
DD  
3
4
5
C3  
C4  
V
DD  
GND  
200 kW  
ENA/DIS  
ENABLE  
Input Stage  
The input signal pins (INA, INB, and ENA/DIS) of the  
NCP51560 are based on the TTL compatible  
Figure 57. Schematic of Input Stage  
Output Stage  
inputthreshold logic that is independent of the V supply  
DD  
The output driver stage of the NCP51560 features a pull  
up structure and a pull down structure.  
The pull up structure of the NCP51560 consists of a  
voltage. The logic level compatible input provides a  
typically high and low threshold of 1.6 V and 1.1 V  
respectively. The input signal pins impedance of the  
NCP51560 is 200 kW typically and the INA, and INB, pins  
PMOS stage ensuring to pull all the way to the V rail. The  
CC  
pull down structure of the NCP51560 consists of a NMOS  
device as shown in Figure 58.  
The output impedance of the pull up and pull down  
switches shall be able to provide about +4.5 A and 9 A peak  
currents typical at 25C and the minimum sink and source  
peak currents at 125C are 7 A sink and +2.6 A source.  
are pulled to GND pin and ENA/DIS pin is pulled to V pin  
for an ENABLE version as shown in Figure 57. Conversely,  
ENA/DIS pin pulled to GND pin for the DISABLE version.  
DD  
It is recommended that ENA/DIS pin should be tie to V  
DD  
or GND pins for ENABLE and DISABLE versions  
respectively if the ENA/DIS pin is not used to achieve better  
noise immunity because the ENA/DIS pin is quite  
responsive, as far as propagation delay and other switching  
parameters are concerned.  
VCCx  
An RC filter is recommended to be added on the input  
signal pins to reduce the impact of system noise and ground  
bounce, the time constant of the RC filter. Such a filter  
VCC UVLO  
LOGIC  
OUTx  
VSSx  
INx  
should use an R in the range of 0 W to 100 W and a C  
IN  
IN  
between 10 pF and 100 pF. In the example, an R = 51 W  
IN  
GND  
and a C = 33 pF are selected, with a corner frequency of  
IN  
approximately 100 MHz. When selecting these  
components, it is important to pay attention to the tradeoff  
between good noise immunity and propagation delay.  
Figure 58. Schematic of Output Stage  
www.onsemi.com  
25  
 
NCP51560  
Consideration of Driving Current Capability  
where:  
Peak source and sink currents (I , and I  
SOURCE  
)
SINK  
I
I
: Source peak current  
SOURCE  
capability should be larger than average current (I  
shown in Figure 59.  
) as  
G, AV  
: Sink peak current.  
SINK  
V
V
: High level output voltage drop  
: Low level output voltage drop  
OH  
OL  
ISOURCE  
IG,AV  
Application Circuits with Output Stage Negative Bias  
SiC MOSFET unique operating characteristics need to be  
carefully considered to fully benefits from SiC  
characteristics. The gate driver needs to be capable of  
providing +20 V and 2 V to 5 V negative bias with  
minimum output impedance and high current capability.  
When parasitic inductances are introduced by nonideal  
PCB layout and long package leads (e.g. TO220 and  
TO247 type packages), there could be ringing in the  
gatesource drive voltage of the power transistor during  
high di/dt and dv/dt switching. If the ringing is over the  
threshold voltage, there is the risk of unintended turnon and  
even shootthrough. Applying a negative bias on the gate  
drive is a popular way to keep such ringing below the  
threshold. Negative voltage can improve the noise tolerance  
of SiC MOSFET to suppress turning it unintentionally. The  
negative gatesource voltage makes the capacitance of Cgd  
becoming lower, which can reduce the ringing voltage.  
Below are a few examples of implementing negative gate  
drive bias. The first example with negative bias with two  
isolatedbias power supplies as shown in Figure 60.  
ISINK  
VGS  
TSW,OFF  
TSW,ON  
Figure 59. Definition of Current Driving Capability  
The approximate maximum gate charge Q that can be  
switched in the indicated time for each driver current rating  
may be calculate: Needed driver current ratings depend on  
G
what gate charge Q must be moved in what switching time  
G
t
because average gate current during switching  
SWON/OFF  
is I .  
G
QG  
IG.AV  
+
(eq. 1)  
tSW,ONńOFF  
The approximate gate driver source and sink peak currents  
can be calculated as below equations  
Power supply VHx determines the positive drive output  
voltage and VLx determines the negative turnoff voltage  
for each channels. This solution requires more power  
supplies than the conventional bootstrapped power supply  
example; however, it provides more flexibility when setting  
the positive, VHx, and negative, VLx, rail voltages.  
At turnon (Sourcing current)  
QG  
I
SOURCE 1.5   
(eq. 2)  
(eq. 3)  
tSW,ON  
At turnoff (Sinking current)  
VDD  
HV Rail  
QG  
I
SINK 1.5   
tSWOFF  
PWMA  
PWMB  
VDD  
1
INA  
INB  
VDD  
VCCA 16  
VHA  
VLA  
OUTA  
VSSA  
2
3
4
15  
14  
where,  
Q = Gate charge at V = V  
G
GS  
CC  
GND  
NC 13  
GND  
ENA/DIS  
DT  
t
= Switch On / Off time  
SW, ON/OFF  
To Load  
ENA  
5
6
7
8
12  
11  
NC  
1.5 = empirically determined factor  
VCCB  
VHB  
VLB  
(Influenced by I vs. I , and circuit parasitic)  
NC  
OUTB 10  
VSSB  
G,AV  
DRV  
VDD  
9
Consideration of Gate Resistor  
The gate resistor is also sized to reduce ringing voltage by  
parasitic inductances and capacitances. However, it limits  
the current capability of the gate driver output. The limited  
current capability value induced by turnon and off gate  
resistors can be obtained with below equation.  
Figure 60. Negative Bias with Two IsolatedBias  
Power Supplies  
Figure 61 shows another example with negative bias  
turnoff on the gate driver using a Zener diode on an isolated  
power supply. The negative bias set by the voltage of Zener  
diode. For example, if the isolated power supply, VHx for  
V
CC * VOH  
ISOURCE  
+
RG,ON  
(eq. 4)  
V
CC * VOL  
ISINK  
+
RG,OFF  
www.onsemi.com  
26  
 
NCP51560  
PCB Layout Guideline  
each channels, the turnoff voltage will be –5.1 V and  
turnon voltage will be 20 V 5.1 V 15 V.  
To improve the switching characteristics and efficiency of  
design, the following should be considered before beginning  
a PCB layout.  
VDD  
HV Rail  
Component Placement  
PWMA  
PWMB  
VDD  
1
INA  
INB  
VCCA 16  
OUTA 15  
RZA  
2
3
4
Keep the input/output traces as short as possible.  
Minimize influence of the parasitic inductance and  
capacitance on the layout. (To maintain low signalpath  
inductance, avoid using via.)  
14  
VSSA  
VDD  
ZA  
VHA  
GND  
NC 13  
NC 12  
GND  
ENA/DIS  
DT  
To Load  
ENA  
5
6
7
8
VCCB  
11  
RZB  
Placement and routing for supply bypass capacitors for  
ANB  
VDD  
OUTB 10  
V
DD  
and V , and gate resistors need to be located as  
CC  
VSSB  
9
close as possible to the gate driver.  
ZB  
VHB  
The gate driver should be located switching device as  
close as possible to decrease the trace inductance and  
avoid output ringing.  
Figure 61. Negative Bias with Zener Diode on  
Single IsolatedBias Power Supply  
Grounding Consideration  
Have a solid ground plane underneath the highspeed  
signal layer.  
Moreover, this configuration could easily be changed  
negative bias by a using different Zener diode with the same  
20 V isolated power supply. This configuration needs two  
isolated power supplies for a halfbridge configuration, but  
this scheme is very simple.  
Have a solid ground plane next to V  
and VSSB pins  
SSA  
with multiple V  
and VSSB vias to reduce the parasitic  
SSA  
inductance and minimize the ringing on the output  
signals.  
However, it has the disadvantage of having a steady state  
power consumption from R . Therefore, one should be  
Zx  
careful in selecting the R values. It is recommended that  
HighVoltage (V ) Consideration  
Zx  
ISO  
R
allow the minimal current flow to stabilize the Zener  
Zx  
To ensure isolation performance between the primary and  
secondary side, any PCB traces or copper should be not  
placed under the driver device as shown in Figure 63. A  
PCB cutout is recommended to avoid contamination that  
may impair the isolation performance of NCP51560.  
clamping voltage (e.g. I : 5 mA~10 mA).  
Z
Typical recommended values are in the few kohm range  
(e.g. 1 k~4.7 k) of SiC MOSFETs application.  
Experimental Results  
Figure 62 show the experimental results of the negative  
bias with Zener diode on single isolated power supply of the  
NCP51560 for SiC MOSFET gate drive application. The  
examples were design to have a +15 V and 5.1 V drive  
power supply referenced to the device source by using the  
20 V isolated power supply.  
Highspeed signal  
10 mils  
0.25 mm  
10 mils  
0.25 mm  
Ground plane  
Keep this space free  
from traces, pads  
and vias  
40 mils  
1 mm  
40 mils  
1 mm  
Power plane  
10 mils  
10 mils  
0.25 mm  
0.25 mm  
Lowspeed signal  
314 mils  
8 mm  
Figure 63. Recommended Layer Stack  
CH1: INPUT [2V/div], and CH2: OUTPUT [5 V/div]  
Figure 62. Experimental Waveforms of Negative Bias  
with Zener Diode on Single Isolated Power Supply  
www.onsemi.com  
27  
 
NCP51560  
Figure 64 shows the printed circuit board layout of  
NCP51560 evaluation board.  
(a) Top & Bottom View  
(b) Top View  
(c) Bottom View  
Figure 64. Printed Circuit Board  
ORDERING INFORMATION  
Device  
Description  
Package  
UVLO  
ENA/DIS  
Shipping  
NCP51560ABDWR2G  
High current dual  
isolated MOS  
driver  
SOIC16 WB  
(PbFree)  
5 V  
DISABLE  
1000 / Tape & Reel  
1000 / Tape & Reel  
1000 / Tape & Reel  
1000 / Tape & Reel  
NCP51560BBDWR2G  
NCP51560CBDWR2G*  
NCP51560DBDWR2G*  
SOIC16 WB  
(PbFree)  
8 V  
DISABLE  
DISABLE  
DISABLE  
SOIC16 WB  
(PbFree)  
13 V  
17 V  
SOIC16 WB  
(PbFree)  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
*Option on demand.  
www.onsemi.com  
28  
 
MECHANICAL CASE OUTLINE  
PACKAGE DIMENSIONS  
SOIC16 WB  
CASE 751G  
ISSUE E  
DATE 08 OCT 2021  
1
SCALE 1:1  
GENERIC  
MARKING DIAGRAM*  
16  
XXXXXXXXXXX  
XXXXXXXXXXX  
AWLYYWWG  
1
XXXXX = Specific Device Code  
A
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= PbFree Package  
WL  
YY  
WW  
G
*This information is generic. Please refer to  
device data sheet for actual part marking.  
PbFree indicator, “G” or microdot “G”, may  
or may not be present. Some products may  
not follow the Generic Marking.  
Electronic versions are uncontrolled except when accessed directly from the Document Repository.  
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.  
DOCUMENT NUMBER:  
DESCRIPTION:  
98ASB42567B  
SOIC16 WB  
PAGE 1 OF 1  
onsemi and  
are trademarks of Semiconductor Components Industries, LLC dba onsemi or its subsidiaries in the United States and/or other countries. onsemi reserves  
the right to make changes without further notice to any products herein. onsemi makes no warranty, representation or guarantee regarding the suitability of its products for any particular  
purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation  
special, consequential or incidental damages. onsemi does not convey any license under its patent rights nor the rights of others.  
© Semiconductor Components Industries, LLC, 2019  
www.onsemi.com  
onsemi,  
, and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates  
and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property.  
A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/PatentMarking.pdf. onsemi reserves the right to make changes at any time to any  
products or information herein, without notice. The information herein is provided “asis” and onsemi makes no warranty, representation or guarantee regarding the accuracy of the  
information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi assume any liability arising out of the application or use  
of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products  
and applications using onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information  
provided by onsemi. “Typical” parameters which may be provided in onsemi data sheets and/or specifications can and do vary in different applications and actual performance may  
vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. onsemi does not convey any license  
under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized for use as a critical component in life support systems  
or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should  
Buyer purchase or use onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and hold onsemi and its officers, employees, subsidiaries, affiliates,  
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death  
associated with such unintended or unauthorized use, even if such claim alleges that onsemi was negligent regarding the design or manufacture of the part. onsemi is an Equal  
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.  
ADDITIONAL INFORMATION  
TECHNICAL PUBLICATIONS:  
Technical Library: www.onsemi.com/design/resources/technicaldocumentation  
onsemi Website: www.onsemi.com  
ONLINE SUPPORT: www.onsemi.com/support  
For additional information, please contact your local Sales Representative at  
www.onsemi.com/support/sales  

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