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LM27965 - Dual Display White LED Driver

General Description

The LM27965 is a highly integrated charge-pumpbased dual-display LED driver.

The device can drive up to 9 LEDs in parallel with a total output current of 180mA.

Regulated internal current sinks deliver excellent current and brightness matching in all LEDs.

Key Features

  • 1.
  • 2 91% Peak LED Drive Efficiency.
  • No Inductor Required.
  • 0.3% Current Matching.
  • Drives LEDs with up to 30mA per LED.
  • 180mA of total drive current.
  • I2C Compatible Brightness Control Interface.
  • Adaptive 1× - 3/2× Charge Pump.
  • Resistor-Programmable Current Settings.
  • External Chip RESET Pin.
  • Extended Li-Ion Input: 2.7V to 5.5V.
  • Small low profile industry standard leadless package, WQFN 24 : (4mm x 4mm.

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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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LM27965 www.ti.com SNVS380B – MAY 2006 – REVISED FEBRUARY 2013 LM27965 Dual Display White LED Driver with I2C Compatible Brightness Control Check for Samples: LM27965 FEATURES 1 •2 91% Peak LED Drive Efficiency • No Inductor Required • 0.3% Current Matching • Drives LEDs with up to 30mA per LED • 180mA of total drive current • I2C Compatible Brightness Control Interface • Adaptive 1× - 3/2× Charge Pump • Resistor-Programmable Current Settings • External Chip RESET Pin • Extended Li-Ion Input: 2.7V to 5.5V • Small low profile industry standard leadless package, WQFN 24 : (4mm x 4mm x 0.