LD7889A
3/29/2012
4-Channel LED Backlight Driver
REV: 00
General Description
The LD7889A 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 LD7889A 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 LD7889A 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...