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LP8555 - High-Efficiency LED Backlight Driver

General Description

The LP8555 is a high efficiency LED driver with integrated dual DC-DC boost converters.

It has 12 high-precision current sinks that can be controlled by a PWM input signal, an I2C master, or both.

Key Features

  • 1 Dual High-Efficiency DC/DC Boost Converters.
  • 2.7-V to 20-V VDD Range.
  • 12 50-mA High-Precision LED Current Sinks With 12-Bit Brightness Control.
  • Adaptive LED Current Sink Headroom Controls for Maximum System Efficiency.
  • LED String Count Auto-Detection.
  • Phase-Shifted PWM Mode for Reduced Audible Noise.
  • PWM Input Duty-Cycle and/or I2C-Register Brightness Control.
  • Hybrid PWM and Current Dimming for Higher LED Drive Optical Eff.

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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 Sample & Buy Technical Documents Tools & Software Support & Community LP8555 SNVS857 – FEBRUARY 2014 LP8555 High-Efficiency LED Backlight Driver for Tablet PCs 1 Features •1 Dual High-Efficiency DC/DC Boost Converters • 2.