LP5521 Datasheet - Texas Instruments

LP5521 three-channel LED driver

The LP5521 is a three-channel LED driver designed to produce variety of lighting effects for mobile devices. A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device has a program memory for creating variety of lighting sequences. When program memory has b.

LP5521 Features

* 1 Adaptive Charge Pump With 1× and 1.5× Gain Provides Up to 95% LED Drive Efficiency

* Charge Pump with Soft Start and Overcurrent, Short-Circuit Protection

* Low Input Ripple and EMI

* Very Small Solution Size, No Inductor or Resistors Required

* 200-nA Typi

LP5521-etcTI.pdf