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LP55231 - 9-channel LED driver

General Description

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.

Key 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 Up to 93%.
  • Charge Pump With Soft Start.
  • Overcurrent and Short-Circuit Protection.
  • Built-in LED Test.
  • 200-nA Typical Standby Current.
  • Automatic Power Save Mo.

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Other Datasheets by Texas Instruments

Part Number Description
LP5523 9-channel LED driver
LP5520 RGB Backlight LED Driver
LP5521 three-channel LED driver
LP5522 Programmable LED Driver
LP5524 Four-Channel LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LP55231 SNOSCR5D – MARCH 2013 – REVISED DECEMBER 2016 LP55231 Nine-Channel RGB, White-LED Driver With Internal Program Memory and Integrated Charge Pump - WQFN 1 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.