ZXLD1360 Datasheet, PDF (1/25 Pages) Zetex Semiconductors – 1A LED driver with internal switch

A Product Line of
Diodes Incorporated
ZXLD1360
30V 1A LED DRIVER with AEC-Q100
Description
The ZXLD1360 is a continuous mode inductive step-down
converter with integrated switch and high side current sense.
It operates from an input supply from 7V to 30V driving
single or multiple series connected LEDs efficiently
externally adjustable output current up to 1mA.
The ZXLD1360 has been qualified to AEC-Q100 Grade 1
enabling operation in ambient temperatures from -40°C to
125°C.
The output current can be adjusted by applying a DC voltage
or a PWM waveform to the ADJ pin; 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.
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: 7V to 30V
• 40V transient capability
• Qualified to AEC-Q100 Grade 1
• Available in thermally enhanced packages
o TSOT23-5
θ_JA
82° C/W
• Available in Green molding (no Br, Sb) with lead free
finish/RoHS compliant
• Up to 1MHz switching frequency
• Typical 4% output current accuracy
Pin Assignments
LX
GND
ADJ
V_IN
TSOT23-5
Top View
I_SENSE
Typical Application Circuit
VIN (7V - 30V)
Rs
0.1V
D1
C1 4.7µF
L1 47mH
VIN
N/C
ADJ
IS ENS E
LX
ZXLD1360
GND
GND
ZXLD1360
Document number: DS33471 Rev. 3 - 2
1 of 25
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December 2010
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