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LP8551 Datasheet High-efficiency Led Backlight Driver

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & munity LP8551 SNVS673E – APRIL 2010 – REVISED SEPTEMBER 2014 LP8551 High-Efficiency LED Backlight Driver for Notebooks.

General Description

The LP8551 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 High-Voltage DC/DC Boost Converter with Integrated FET; Four Switching Frequency Options: 156/312/625/1250 kHz.
  • 2.7-V to 22-V Input Voltage Range to Support 1x to 5x Cell Li-Ion Batteries.
  • 50-mA High-Precision LED Current Sinks.
  • Adaptive LED Current Sink Headroom Control for Maximum System Efficiency.
  • Programmable PWM Resolution 8 to 13 Bits.
  • I2C and PWM Input Duty Cycle Brightness Control.
  • PWM Output Frequency and LED Current Set.

More Datasheets from Texas Instruments

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LP8551 Distributor