ZLED7001 [IDT]

Universal LED Driver;
ZLED7001
型号: ZLED7001
厂家: INTEGRATED DEVICE TECHNOLOGY    INTEGRATED DEVICE TECHNOLOGY
描述:

Universal LED Driver

文件: 总14页 (文件大小:304K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
ZLED7001  
Universal LED Driver with  
Temperature Compensation  
Datasheet  
Brief Description  
ZLED7001 Features  
The ZLED7001, one of our ZLED family of LED control  
ICs, is a peak current-mode control LED driver IC that is  
optimal for buck LED driver applications. The ZLED7001  
operates in constant off-time mode. Capable of  
operating efficiently with voltage sources ranging from 8  
VDC to 450 VDC or rectified 110 VAC/ 220 VAC, it is  
ideal for High Brightness (HB) LED applications. The  
ZLED7001 provides a PWM input for an external  
dimming control signal. The ZLED7001’s linear dimming  
input can be used both for linear dimming (0 to 240 mV)  
and temperature compensation of the LED current.  
Wide input range from 8 VDC to 450 VDC or  
110 VAC/220 VAC  
Temperature compensation to protect the LEDs and  
extend LED lifetime  
Operates in constant off-time mode  
Both PWM and linear dimming control signal inputs  
available  
Very few external components needed for operation  
Broad range of applications: outputs greater than 1A  
Because the ZLED7001’s response time is limited only  
by the rate of change in the inductor current, it attains a  
high performance pulse-width modulation (PWM) dim-  
ming response. The ZLED7001 ensures proper output  
current regulation, without loop compensation, via peak  
current-mode operation.  
Application Examples  
Line-powered replacement LED lighting  
Illuminated LED signs and other displays  
LED street and traffic lighting  
Constant-current source for general purposes  
Architecture / building LED lighting  
LED backlighting  
Line powered LED flood lighting  
Interior / exterior LED lighting  
ZLED7001 Application Circuit  
8 to 450 VDC  
VS  
R2  
NTC  
n LED  
RIN  
CLED  
D1  
8
L1  
1
VIN  
VREF  
ZLED7001  
CIN  
R1  
Q1  
3
2
5
6
LD  
PWMD  
TOFF GND  
GATE  
C1  
CS  
7
4
RCS  
COFF  
© 2016 Integrated Device Technology, Inc.  
1
April 20, 2016  
 
ZLED7001  
Universal LED Driver with  
Temperature Compensation  
Datasheet  
ZLED7001 Block Diagram  
8 to 450 VDC  
VS  
TOFF  
7
ZLED7001  
COFF  
RIN  
Voltage  
Regulator  
8
Timing  
Circuit  
vdda  
VIN  
vddd  
7.1V Clamp  
1
R2  
NTC  
Bandgap  
n LED  
CIN  
D1  
CLED  
VREF  
R
R
0.24V  
0.05V  
L1  
R1  
C1  
+
CMP1  
R
Blanking  
480ns  
S
R
Q1  
5
3
Driver  
RS  
GATE  
LD  
Q
CMP2  
+
6
+
CMP3  
CS  
POR  
UVLO  
RCS  
vdda  
0.24V  
REN  
2
PWMD  
4
GND  
SOP-8 Package Dimensions (mm, except θ)  
A
A1  
A2  
b
1.550 ± 0.200  
0.175 ± 0.075  
1.450 Typical  
0.420 ± 0.070  
0.214 ± 0.036  
4.900 ± 0.100  
E
E1  
e
3.900 ± 0.100  
6.020 ± 0.220  
1.270 Typical  
0.835 ± 0.435  
4° ± 4°  
L
c
θ
D
Ordering Information  
Sales Code  
Description  
Package  
SOP8 (Tape & Reel)  
Kit  
ZLED7001 – Universal LED Driver with Temperature Compensation  
ZLED7001ZI1R  
ZLED7001Kit-E1  
ZLED-PCB1  
ZLED7001 Evaluation Board up to 24VAC / 40VDC, including 1 ZLED-PCB1  
Test PCB with one 3W white HB-LED, cascadable to one multiple LED string  
Printed Circuit Board  
Printed Circuit Board  
10 unpopulated test PCBs for modular LED string with footprints of 9 common HB-LED types  
ZLED-PCB2  
Corporate Headquarters  
6024 Silver Creek Valley Road  
San Jose, CA 95138  
Sales  
Tech Support  
www.IDT.com/go/support  
1-800-345-7015 or 408-284-8200  
Fax: 408-284-2775  
www.IDT.com/go/sales  
www.IDT.com  
DISCLAIMER Integrated Device Technology, Inc. (IDT) reserves the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance  
specifications and operating parameters of the described products are determined in an independent state and are not guaranteed to perform the same way when installed in customer products. The  
information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an  
implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property  
rights of IDT or any third parties.  
IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be  
reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.  
Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the  
property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary. All contents of this document are copyright of Integrated  
Device Technology, Inc. All rights reserved.  
© 2016 Integrated Device Technology, Inc.  
2
April 20, 2016  
ZLED7001 Datasheet  
Contents  
1
IC Characteristics.......................................................................................................................................................... 4  
1.1.  
Absolute Maximum Ratings ................................................................................................................................... 4  
Operating Conditions............................................................................................................................................. 4  
Electrical Parameters............................................................................................................................................. 4  
1.2.  
1.3.  
2
Circuit Description......................................................................................................................................................... 6  
2.1.  
ZLED7001 Block Diagram ..................................................................................................................................... 6  
Application Signal Flow.......................................................................................................................................... 6  
Input Voltage Regulator......................................................................................................................................... 7  
Current Sensing..................................................................................................................................................... 8  
Timing Circuit......................................................................................................................................................... 8  
PWM Dimming Application Circuit ......................................................................................................................... 8  
Linear Dimming Application Circuit........................................................................................................................ 8  
Temperature Compensation .................................................................................................................................. 9  
Design Example..................................................................................................................................................... 9  
2.2.  
2.3.  
2.4.  
2.5.  
2.6.  
2.7.  
2.8.  
2.9.  
3
4
5
6
ESD/Latch-Up-Protection............................................................................................................................................ 11  
Pin Configuration and Package................................................................................................................................... 12  
Ordering Information ................................................................................................................................................... 13  
Document Revision History......................................................................................................................................... 14  
List of Figures  
Figure 2.1  
Figure 4.1  
Figure 4.2  
Input Current .................................................................................................................................................. 7  
Pin Configuration ZLED7001........................................................................................................................ 12  
Package Drawing SOP-8.............................................................................................................................. 13  
List of Tables  
Table 1.1  
Table 1.2  
Table 1.3  
Table 4.1  
Table 4.2  
Absolute Maximum Ratings............................................................................................................................ 4  
Operating Conditions...................................................................................................................................... 4  
Electrical Conditions....................................................................................................................................... 4  
Pin Description SOP-8.................................................................................................................................. 12  
Package Dimensions SOP-8........................................................................................................................ 13  
© 2016 Integrated Device Technology, Inc.  
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April 20, 2016  
 
ZLED7001 Datasheet  
1
IC Characteristics  
1.1. Absolute Maximum Ratings  
Table 1.1  
No.  
Absolute Maximum Ratings  
PARAMETER SYMBOL  
Input voltage  
Voltage to GND at pin CS,  
CONDITIONS  
MIN  
-0.3  
-0.3  
TYP  
MAX  
UNIT  
V
1.1.1  
VIN  
8
6
1.1.2  
V
CS, VLD,  
V
LD, PWMD, GATE, TOFF  
VREF  
,
VPWMD,  
VGATE, VTOFF  
VVREF  
,
1.1.3  
1.1.4  
1.1.5  
Input current VIN pin 1  
Junction temperature  
Storage temperature  
IVIN  
Tj MAX  
TST  
1
10  
mA  
°C  
150  
150  
-55  
°C  
1.2. Operating Conditions  
Table 1.2  
No.  
Operating Conditions  
PARAMETER  
SYMBOL  
TOP  
CONDITIONS  
MIN  
-40  
8
TYP  
MAX  
+85  
450  
UNIT  
°C  
1.2.1  
Operating temperature  
Input DC supply voltage  
1.2.2  
VINDC  
Resistor RIN required  
between DC supply  
V
voltage and VIN pin with  
resistance determined by  
equation (2) and with  
proper voltage rating. 2  
1.3. Electrical Parameters  
Production testing of the chip is performed at 25°C. Functional operation of the chip and specified parameters at  
other temperatures are guaranteed by design, characterization, and process control.  
Test conditions: VIN = 12V; Tamb = 25°C; RIN=2kΩ; unless otherwise noted.  
Table 1.3  
No.  
Electrical Conditions  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
1.3.1  
VIN clamp voltage  
VINCL  
Always higher than under  
voltage lockout threshold  
6.6  
7.1  
7.6  
V
1.3.2  
1.3.3  
Operation current  
IIN  
VIN= 6V, GATE floating  
VIN rising  
0.33  
6.1  
0.5  
6.5  
0.64  
6.8  
mA  
V
Under voltage lockout  
threshold  
VULO  
1.3.4  
1.3.5  
Under voltage lockout  
hysteresis  
ΔVULO  
VIN falling  
500  
mV  
V
PWMD pin input low  
voltage  
VENL  
1.2  
1 Beyond the input current range, VIN might not clamp at 7.1V  
2 This parameter limit is guaranteed by design, characterization, and application check. See equation (2) on page 8  
© 2016 Integrated Device Technology, Inc.  
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April 20, 2016  
 
 
 
 
 
 
 
 
ZLED7001 Datasheet  
No.  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
1.3.6  
PWMD pin input high  
voltage  
VENH  
2
V
1.3.7  
1.3.8  
1.3.9  
PWMD pin pull-up  
resistance  
REN  
VCSTH  
VLDL  
100  
240  
50  
kΩ  
mV  
mV  
mV  
ns  
Current sense threshold  
voltage  
215  
400  
265  
LD pin voltage low  
threshold  
1.3.10 LD pin voltage high  
threshold  
VLDH  
240  
480  
30  
1.3.11 Current sense blanking  
interval  
TBLANK  
tDELAY  
550  
550  
1.3.12 Output delay  
VCS = VCSTH + 50mV, after  
TBLANK  
ns  
1.3.13 OFF time  
TOFF  
tRISE  
TOFF pin floating  
CGATE = 500pF  
CGATE = 500pF  
480  
510  
19  
ns  
ns  
1.3.14 GATE output rise time  
1.3.15 GATE output fall time  
1.3.16 REF pin voltage  
1.3.17 REF pin load current  
tFALL  
29  
ns  
VREF  
1.12  
1.20  
1.30  
0.5  
5
V
IREF  
mA  
mV  
1.3.18 Load regulation of  
reference voltage  
VREFLOAD  
IREF = 0 to 500µA, PWMD  
= 5.0V  
0.5  
© 2016 Integrated Device Technology, Inc.  
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April 20, 2016  
ZLED7001 Datasheet  
2
Circuit Description  
The ZLED7001 is a peak current-mode-control LED driver IC that operates in constant off-time mode, enabling  
proper LED current control without additional loop compensation or high-side current sensing. The ZLED7001  
supports both linear and PWM control of the LED current. Only a few external components are needed for typical  
applications. It is well-suited for buck LED driver applications.  
2.1. ZLED7001 Block Diagram  
8 to 450 VDC  
VS  
TOFF  
7
ZLED7001  
COFF  
RIN  
Voltage  
Regulator  
8
Timing  
Circuit  
vdda  
VIN  
vddd  
7.1V Clamp  
1
R2  
NTC  
Bandgap  
n LED  
CIN  
D1  
CLED  
VREF  
R
R
0.24V  
0.05V  
L1  
R1  
C1  
+
CMP1  
R
Blanking  
480ns  
S
R
Q1  
5
3
Driver  
RS  
GATE  
LD  
Q
CMP2  
+
6
+
CMP3  
CS  
POR  
UVLO  
RCS  
vdda  
0.24V  
REN  
2
PWMD  
4
GND  
2.2. Application Signal Flow  
A capacitor between the TOFF pin and ground determines the internal timer’s off-time. The timer pulses set flip-flop  
in the ZLED7001, turning on the GATE pin driver, which is connected to the Q1 external MOSFET. When Q1  
turns on, a ramp current flows through the LED(s), the L1 external inductor, and the external sense resistor RCS.  
This results in a ramp voltage applied at the CS pin, which the ZLED7001’s two internal comparators continually  
compare to the voltage at its LD pin and its internal 240mV reference. If either comparator goes high and the  
blanking time is expired (see Table 1.3), the flip-flop is reset, causing the GATE pin output to go low, shutting off  
the current through the LED(s).  
The peak current control scheme with constant off-time can easily operate at duty cycles higher than 0.5 and also  
gives inherent input voltage rejection, making the LED current almost insensitive to input voltage variations.  
© 2016 Integrated Device Technology, Inc.  
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ZLED7001 Datasheet  
2.3. Input Voltage Regulator  
The value and rating of the RIN input resistor must be selected as needed to drop the application supply voltage  
(Vs) to the proper operating voltage for the ZLED7001 specified in section 0 (see equation (2) below). When these  
conditions are met, the ZLED7001’s internal input voltage regulator maintains a stable 7.1V (typical) at the VIN pin  
to power the ZLED7001. A low-equivalent-series-resistance (ESR) bypass capacitor is required on the VIN pin to  
provide a low-impedance path for the GATE pin output driver’s high frequency current.  
The VIN pin draws an input current that is the sum of the 0.5mA (typical) required by the internal circuit and the  
average current drawn by the GATE driver. The GATE driver current is primarily determined by the GATE charge  
(QG) and switching frequency (fs) of the external MOSFET as shown in equation (1).  
IIN 0.5mA +  
(
QG fS  
)
(1)  
Where  
fS  
= Switching frequency  
QG = External MOSFET gate charge (refer to the MOSFET data sheet)  
The input resistor RIN value is given by equation (2).  
VINDC VIN  
(2)  
RIN  
=
IIN  
For two typical MOSFET types, the following IIN diagram will result:  
Figure 2.1 Input Current  
© 2016 Integrated Device Technology, Inc.  
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April 20, 2016  
 
 
 
ZLED7001 Datasheet  
2.4. Current Sensing  
Assuming a 30% current ripple in the inductor, the sense resistor RCS can be calculated as shown in equation (3):  
VCSTH  
RCS  
=
(3)  
1.15ILED  
Where  
VCSTH = 240mV (typical)  
The current sense input of the ZLED7001 is connected to the non-inverting inputs of two comparators. The  
inverting terminal of one comparator is tied to an internal 240mV reference and the inverting terminal of the other  
comparator is connected to the LD pin. The outputs of both comparators are fed into an OR gate, and the output  
of the OR gate is connected to the reset pin of the flip-flop. Thus, the comparator that has the lower voltage at the  
inverting input determines when the GATE output is turned off.  
The comparator outputs also include a typical 480ns blanking time that prevents spurious turn-offs of the external  
MOSFET due to the turn-on spike normally present as a result of transistor gate-source capacitance. In rare  
cases, this internal blanking time might not be enough to filter out the turn-on spike. If so, an external RC filter  
must be added between the external sense resistor (RCS) and the CS pin.  
Note that the comparators are relatively fast: 80ns typical response time. Invalid triggering by these comparators  
could result if the layout fails to minimize external inductances.  
2.5. Timing Circuit  
The timing circuit in the ZLED7001 is controlled by a single capacitor connected from TOFF to ground.  
T
OFF, the time of the cycle period, is given by equation (4):  
COFF  
(4)  
TOFF _TIME = 510ns 1 +  
10 pF  
2.6. PWM Dimming Application Circuit  
For PWM dimming applications, the ZLED7001’s PWMD pin is driven with a low-frequency square-wave control  
signal. The GATE pin’s driver is enabled when the control signal is high and disabled when the control signal is  
low. The LED current’s rise and fall rate is controlled only by the inductance value, the supply voltage, and LED  
forward voltage.  
If the PWMD pin is allowed to float, the PWM dimming function is disabled.  
2.7. Linear Dimming Application Circuit  
For linear dimming applications, an external voltage ranging from 50mV (typical) to 240mV (typical) is applied to  
the LD (linear dimming) pin to control the LED current during operation. Linear dimming can be used to adjust the  
LED current level to reduce the LED’s brightness. In this case, connect a resistor between the VREF pin and the  
LD pin and connect a negative-temperature-coefficient (NTC) thermistor between the LD pin and ground. The  
ZLED7001 can also provide temperature compensation, (see the application circuit on page 1 and section 2.8).  
© 2016 Integrated Device Technology, Inc.  
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April 20, 2016  
 
 
 
 
 
ZLED7001 Datasheet  
A group of modules based on the ZLED7001 can be matched in LED brightness using the linear dimming input  
with the PWM dimming feature still available for overall brightness control.  
If the LD pin is not used, it must be connected to the PWMD pin, which is internally pulled-up. When the LD pin  
voltage drops below 50mV, the GATE output is switched off.  
2.8. Temperature Compensation  
ZLED7001 provides thermal protection for the connected LEDs. Applying an NTC thermistor close to the LED  
string will enable the temperature compensation of the LED current. Refer to the application circuit on page 1. If  
the temperature of the LEDs rises, the resistance of the NTC thermistor decreases until the voltage of the LD pin  
falls below 240mV. Then the average current is controlled by the LD pin and the temperature compensation  
function starts. The upper threshold to start compensation is given by equation (5):  
RNTC  
(5)  
VLDH =~ 240mV =VREF  
RNTC + R1  
Considering the limit for IREF, under all conditions R1 must be selected larger than 2.2kΩ. Assuming a 30%  
inductor current ripple, the temperature compensated continuous current can be computed as shown in  
equation (6):  
   
VREF  
RNTC  
(6)  
   
IOUT  
=
   
   
1.15 RS  
RNTC + R1  
When the LD pin voltage drops below 50mV (typical), the GATE output is switched off. The transition to dimming  
as well as the switch-off is reversible as soon as the respective thresholds are exceeded after the LED assembly  
cools. Adding a capacitor C1 from the LD pin to ground will reduce noise on the LD input.  
2.9. Design Example  
A common application for an AC-line-powered ZLED7001 is luminants with a string of several LEDs operated by  
one driver. For the example, the following constraints are assumed:  
Application:  
15W LED luminant with 13 HB LEDs in 1 string  
VINAC = 230 VAC  
AC supply voltage:  
Average DC supply voltage:  
VINDC 280 VDC resulting after bridge rectification and filtering with a 10μF  
capacitor; power factor correction is not considered.  
LED string forward voltage:  
LED string average current:  
ΣVF = 13*3.3V 43V  
ILED = 350mA  
IC Input Resistor (RIN) and Hold Capacitor (CIN):  
For a given 2N60 MOSFET and a maximum expected switching frequency of 100kHz, the IC input current will be  
IIN 0.5mA +  
(
QG fS = 0.5mA + (9nC 100kHz) = 1.4mA  
)
© 2016 Integrated Device Technology, Inc.  
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April 20, 2016  
 
 
 
ZLED7001 Datasheet  
Resulting in a supply resistor of  
VINDC VIN 280V 7V  
RIN  
=
=
195kΩ  
IIN  
1.4mA  
An 180kΩ type can be chosen with a power rating of 0.5W. CIN is chosen to be a 10μF/ 10V capacitor.  
TOFF Time Capacitor (COFF  
)
The selection of the operation frequency is based on a tradeoff between higher frequencies allowing for smaller  
and less expensive inductors and lower frequencies incurring lower losses in the power switch.  
An estimation of the duty cycle D is based on the ratio of output voltage over input voltage:  
TON _TIME  
TON _TIME +TOFF _TIME VINDC 280V  
A timing capacitor of 220pF yields  
ΣVF  
43V  
D =  
=
0.15  
COFF  
220pF  
10pF  
TOFF _TIME = 0.51  
µ
s 1+  
 = 0.51  
µ
s 1+  
 = 11.7  
µs  
10pF  
Resulting in an operation frequency of  
1D 10.15  
TOFF _TIME 11.7µs  
fO =  
=
72kHz  
Inductor (L1)  
The inductance L1 is determined by the LED string’s forward voltage, the off-time, and the acceptable current  
ripple. Assuming a ripple of 30% of the average current yields  
ΣVF TOFF _TIME  
43V 11.7µs  
30% 350mA  
L =  
=
4.8mH  
IRipple  
Lower ripple at the same average current will increase the lifetime of the LEDs but requires a more expensive  
higher value inductor and increased thermal losses since the inductor’s DC resistance will increase as well. The  
DC resistance of the inductor is an important design parameter, too. A capacitor placed in parallel with the array  
of LEDs can be used to reduce the LED current ripple while keeping the same average current.  
The inductor chosen must have a saturation current higher than the peak output current and a continuous current  
rating above the required mean output current. The circuit design must also consider the decrease of inductance  
and saturation current with rising temperature.  
Current Sense Resistor (RCS)  
With peak current-mode control, the output is switched off when the LED current reaches its maximum value  
summing up the average LED current and half of the defined current ripple, yielding for the given example  
IRipple  
30%350mA  
IO _PEAK = ILED(AVG)  
+
= 350mA +  
= 402.5mA  
2
2
© 2016 Integrated Device Technology, Inc.  
10  
April 20, 2016  
ZLED7001 Datasheet  
The current sense resistor can now be calculated from the internal comparator threshold VCSTH and the peak  
current as  
VCSTH  
240mV  
RCS  
=
=
= 0.596Ω  
IO _PEAK 402.5mA  
This value can be built by a 0.68Ω in parallel with a 4.7Ω type.  
MOSFET (Q1) and Diode (D1)  
The MOSFET and diode must be dimensioned with a minimum 50% safety rating of their relevant voltage and  
current parameters. Thus a FET with minimum 500V drain-source breakdown voltage and 0.6A drain current as  
well as a fast recovery diode with at least 500V reverse voltage and a 0.6A forward current may be selected.  
3
ESD/Latch-Up-Protection  
All pins have an ESD protection of >± 2000V according human body model (HBM). The ESD test follows the  
Human Body Model with 1.5 kΩ/100 pF based on MIL 883-G, Method 3015.7  
Latch-up protection of >± 100mA has been proven based on JEDEC No. 78A Feb. 2006, temperature class 1.  
© 2016 Integrated Device Technology, Inc.  
11  
April 20, 2016  
 
ZLED7001 Datasheet  
4
Pin Configuration and Package  
Figure 4.1  
Pin Configuration ZLED7001  
VREF  
VIN  
PWMD  
LD  
TOFF  
CS  
GND  
GATE  
Table 4.1  
Pin Description SOP-8  
Pin Name NO.  
Description  
1.2V reference voltage. No bypass capacitor needed.  
VREF  
1
2
PWM dimming input. The gate driver operates normally if PWMD is pulled high. The gate driver is turned  
off if PWMD is pulled to GND or open.  
PWMD  
Linear dimming input. If the voltage at LD is < 240mV (typical), LD controls the current sense threshold.  
Can also be used as temperature compensation threshold voltage.  
LD  
3
GND  
4
5
Internal circuit ground reference. Electrical connection to ground is required.  
Output for external N-channel power MOSFET gate driver.  
GATE  
Current sense pin that senses the Q1 MOSFET drain current through external resistor RCS. The GATE  
output goes low if the voltage at CS > the voltage at the LD pin or the internal 240mV.  
CS  
TOFF  
VIN  
6
7
8
Sets the off-time of the power MOSFET. If left floating, off-time will be 510ns. For increased off-time, a  
capacitor must be connected between TOFF and GND.  
Supply input of 8V to 450V through a resistor, clamped at 7.1V internally. Low-ESR bypass capacitor to  
GND is required.  
© 2016 Integrated Device Technology, Inc.  
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ZLED7001 Datasheet  
Figure 4.2  
Package Drawing SOP-8  
Table 4.2  
Package Dimensions SOP-8  
Dimension (mm)  
Dimension (mm, except θ)  
Symbol  
Symbol  
Min  
Max  
1.750  
0.250  
Min  
Max  
4.000  
6.240  
A
A1  
A2  
b
1.350  
E
E1  
e
3.800  
5.800  
0.100  
1.450 Typical  
0.350  
1.270 Typical  
0.490  
0.250  
5.000  
L
0.400  
0°  
1.270  
8°  
c
0.178  
θ
D
4.800  
The SOP-8 package has a thermal resistance (junction to ambient) of RθJA = 80 K/W.  
5
Ordering Information  
Product Sales Code Description  
Package  
SOP8 (Tape & Reel)  
ZLED7001 Evaluation Board up to 24VAC / 40VDC, including 1 ZLED-PCB1 Kit  
ZLED7001ZI1R  
ZLED7001Kit-E1  
ZLED-PCB1  
ZLED7001 – Universal LED Driver with Temperature Compensation  
Test PCB with one 3W white HB-LED, cascadable to one multiple LED string Printed Circuit Board  
ZLED-PCB2  
10 unpopulated test PCBs for modular LED string with footprints of 9 common Printed Circuit Board  
HB-LED types  
© 2016 Integrated Device Technology, Inc.  
13  
April 20, 2016  
 
 
 
ZLED7001 Datasheet  
6
Document Revision History  
Revision  
1.0  
Date  
Description  
June 2, 2010  
August 12, 2010  
Production release version  
1.1  
Removed references to thermal shutdown protection in “Features” section and in  
section 2.9. Updated contact information  
Updated block diagram connection for correct PWMD internal connection.  
April 20, 2016  
Changed to IDT branding.  
Corporate Headquarters  
Sales  
Tech Support  
www.IDT.com/go/support  
6024 Silver Creek Valley Road  
San Jose, CA 95138  
www.IDT.com  
1-800-345-7015 or 408-284-8200  
Fax: 408-284-2775  
www.IDT.com/go/sales  
DISCLAIMER Integrated Device Technology, Inc. (IDT) reserves the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance  
specifications and operating parameters of the described products are determined in an independent state and are not guaranteed to perform the same way when installed in customer products. The  
information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an  
implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property  
rights of IDT or any third parties.  
IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be  
reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.  
Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the  
property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary. All contents of this document are copyright of Integrated  
Device Technology, Inc. All rights reserved.  
© 2016 Integrated Device Technology, Inc.  
14  
April 20, 2016  
 

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