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LD7889

Leadtrend Technology
Part Number LD7889
Manufacturer Leadtrend Technology
Description 4 Channel LED Backlight Driver
Published Jun 20, 2018
Detailed Description 4 Channel LED Backlight Driver LD7889 10/07/2011 REV: 05 General Description The LD7889 is a 4-channel linear current ...
Datasheet PDF File LD7889 PDF File

LD7889
LD7889

Overview
4 Channel LED Backlight Driver LD7889 10/07/2011 REV: 05 General Description The LD7889 is a 4-channel linear current controller which combines with a boost switching controller.
It’s an ideal solution for driving high power LED backlights.
The LD7889 can deliver high accuracy of constant current to 4 LED strings with 4 internal MOSFET.
For each LED string, the current is adjustable to drive up to 240mA.
The LD7889 incorporates 4 individual current regulator channels to give accurate driving current for each LED string.
The string-to-string tolerance is set within ±2%.
PWM input pin controls LED brightness from PWM control signals.
The other features include LED short and open protection, cycle by cycle current limit, and thermal shutdown.
Features z Input Voltage range: 4.
5V to 36V z Drives up to 4 strings in parallel, up to 240mA per string z Time-shift PWM dimming control z External PWM dimming control z LED short circuit protection z LED open string protection z MOSFET over-c...


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