LP5523 Description
The LP5523 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.
LP5523 Key Features
- 1 Three Independent Program Execution Engines, Nine Programmable Outputs with 25.5-mA FullScale Current, 8-Bit Current S
- Adaptive High-Efficiency 1×/1.5× Fractional Charge Pump
- Efficiency Up to 94%
- LED Drive Efficiency Up to 93%
- Charge Pump With Soft Start and Overcurrent and
- Built-in LED Test
- 200-nA Typical Standby Current
- Automatic Power-Save Mode
- Two-Wire I2C-patible Control Interface
- Flexible Instruction Set