LP55231 Datasheet - Texas Instruments

LP55231 9-channel LED driver

The LP55231 is a 9-channel LED driver designed to produce lighting effects for mobile devices. A highefficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device is equipped with an internal program memory, which allows operation without processor control. The LP5523.

LP55231 Features

* 1 Three Independent Program Execution Engines, 9 Programmable Outputs With 25.5-mA Full-Scale Current, 8-Bit Current Setting Resolution and 12-Bit PWM Control Resolution

* Adaptive High-Efficiency 1×/1.5× Fractional Charge Pump - Efficiency up to 94%

* LED Drive Efficiency U

LP55231 Datasheet (1.63 MB)