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| ZXLD1362_12 Datasheet, PDF (2/24 Pages) Diodes Incorporated – 60V 1A LED DREIVER WITH AEC-Q100 | |||
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A Product Line of
Diodes Incorporated
ZXLD1362
Pin Description
Name
LX
GND
ADJ
ISENSE
VIN
Pin No.
1
2
3
4
5
Function
Drain of NDMOS switch
Ground (0V)
Multi-function On/Off and brightness control pin:
⢠Leave floating for normal operation.(VADJ = VREF = 1.25V giving nominal average output current
o IOUTnom = 0.1/RS)
⢠Drive to voltage below 0.2V to turn off output current
⢠Drive with DC voltage (0.3V < VADJ < 2.5V) to adjust output current from 25% to 200% of IOUTnom
⢠Connect a capacitor from this pin to ground to increase soft-start time.
⢠Soft-start time increases approximately 200µs/nF.
Connect resistor RS from this pin to VIN to define nominal average output current IOUTnom = 0.1/RS
(Note: RSMIN = 0.1⦠with ADJ pin open circuit)
Input voltage (6V to 60V). Decouple to ground with 4.7µF of higher X7R ceramic capacitor close to device.
Block Diagram
VIN
RS
5 VIN
D1
4 ISENSE
L1
`
1 LX
5V
C1
4.7µF
ADJ
3
Voltage
regulator
GND
R4
R5
50k
20k
R1
0.2V
R2
D1
1.25V
GND
GND
2
R3
1.35V
Figure 1. Block Diagram
Low voltage
detector
MN
ZXLD1362
Document number: DS33472 Rev. 5 - 2
2 of 24
www.diodes.com
May 2012
© Diodes Incorporated
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