ADP5520 Datasheet (Analog Devices)

ADP5520, Backlight Driver

The ADP5520 is a versatile single-chip, white LED backlight driver with a user configurable I/O expander.

This device fits handset applications where the flip or slider section of the phone requires backlighting, I/O signaling and detecting, auxiliary LED lighting, and keypad functions.

By incorpora

ADP5520 Features

* Efficient asynchronous boost converter for driving up to 6 white LEDs 2.7 V to 5.5 V input voltage range 128 programmable backlight LED current levels (30 mA maximum) Ambient light sensing with autonomous backlight adjustment Programmable backlight fade-in/fade-out times Programmable backlight dim a