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ZXLD1350

Diodes
Part Number ZXLD1350
Manufacturer Diodes
Description 30V 350mA LED DRIVER
Published Dec 10, 2015
Detailed Description A Product Line of Diodes Incorporated ZXLD1350 30V 350mA LED DRIVER with AEC-Q100 Description The ZXLD1350 is a hystere...
Datasheet PDF File ZXLD1350 PDF File

ZXLD1350
ZXLD1350

Overview
A Product Line of Diodes Incorporated ZXLD1350 30V 350mA LED DRIVER with AEC-Q100 Description The ZXLD1350 is a hysteretic 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 external adjustable output current up to 350mA.
The ZXLD1350 has been qualified to AECQ100 grade 2 allowing it to operate at ambient temperatures from -40 to 105°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 a voltage of 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 VIN ISENSE Features Typical Application Circuit • Simple low parts count • Internal 30V NDMOS switch • Internal PWM filter • High efficiency (up to 95% (Note 1) • Wide input voltage range: 7V to 30V • 40V transient capability • Up to 1MHz switching frequency • Typical 4% output current accuracy • Qualified to AEC-Q100 Grade 2 • Available in “Green” Molding Compound (No Br, Sb) • Lead Free Finish/ RoHS Compliant (Note 2) VIN 7~30V C1 1µF GND RS 0.
33Ω L1 47µH VIN SET ADJ ZXLD1350 GND LX Notes: 1.
Using standard external components as specified under electrical characteristics.
Efficiency is dependent upon the number of LEDs driven and on external component types and values.
2.
EU Directive 2002/95/EC (RoHS).
All applicable RoHS exemptions applied.
Please visit our website at: http://www.
diodes.
com/products/lead_free.
html ZXLD1350 Document number: DS33468 Rev.
8 - 2 1 of 22 www.
diodes.
com March 2011 © Diodes Incorporated Block Diagram VIN A Product Line of Diodes Incorporated ZXLD1350 30V 350mA LED DRIVER with AEC-Q100 RS D1 C1 ADJ VIN Voltage regulator 5V Shutdown circuit 200k 4KHz VIN R1 Current sense circuit ISENSE + Comparator + R2 Vref 1.
25V R3 ...


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