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LP8553 Datasheet High-efficiency Led Backlight Driver

Manufacturer: Texas Instruments

Overview: LP8553 .ti. SNVS701B – SEPTEMBER 2011 – REVISED JANUARY 2014 LP8553 High-Efficiency LED Backlight Driver for Notebooks Check for Samples:.

General Description

The LP8553 is a white LED driver with integrated boost converter.

It has four adjustable current sinks which can be controlled by PWM input or with I2Cpatible serial interface.

The boost converter has adaptive output-voltage control based on the LED driver voltages.

Key Features

  • 1.
  • 2 High-Voltage DC/DC Boost Converter with Integrated FET with Four Switching Frequency Options: 156/312/625/1250 kHz.
  • 2.7V to 22V Input Voltage Range to Support 1x…5x Cell Li-Ion Batteries.
  • Programmable PWM Resolution.
  • 8 to 13 True Bit (Steady State).
  • Additional 1 to 3 Bits Using Dithering During Brightness Changes.
  • I2C and PWM Brightness Control.
  • Automatic PWM & Current Dimming for Improved Efficiency.
  • PWM Output Frequenc.

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LP8553 Distributor