ZXLD1362 Datasheet, PDF (1/28 Pages) Zetex Semiconductors – 1A LED driver with internal switch

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ZXLD1362
60V 1A LED DRIVER WITH AEC-Q100
Description
The ZXLD1362 is a continuous mode inductive step-
down converter with integrated switch and high side
current sense.
It operates from an input supply from 6V to 60V driving
single or multiple series connected LEDs efficiently
externally adjustable output current up to 1mA.
The ZXLD1362 has been qualified to AEC-Q100 Grade 1
enabling operation in ambient temperatures from -40 to
125°C.
The output current can be adjusted by applying a DC
voltage or a PWM waveform. 100.1 adjustment of output
current is possible using PWM control.
Applying 0.2V or lower to the ADJ pin turns the output off
and switches the device into a low current standby state.
Pin Assignments
LX
GND
ADJ
TSOT23-5
Top View
V_IN
I_SENSE
Features
• Simple low parts count
• Single pin on/off and brightness control using DC
voltage or PWM
• High efficiency (up to 95%)
• Wide input voltage range: 6V to 60V
• Up to 1MHz switching frequency
• Qualified to AEC-Q100 Grade 1
• Thermally enhanced TSOT23-5: θ_JA 82°C/W
• Typical 2% output current accuracy
Typical Application Circuit
VIN (24V)
Rs
0.1V
D1
C1 4.7µF
L1 68m
V_IN
100nF
ADJ
GND
I_{SE N S E}
LX
ZXLD1362
GND
ZXLD1362
Document number: DS33472 Rev. 2 - 2
1 of 28
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December 2010
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