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LN9364 - 80mA 4-Channel Charge Pump White LED Driver

Description

The LN9364 is a high performance white LED driver.

It integrates current sources and automatic mode selection charge pump.

The part maintains the high efficiency by utilizing an x1/x1.5 fractional charge pump and low dropout current sources.

Features

  • 90% average efficiency over battery life.
  • Support up to 4 white LEDs.
  • 80mV typical current source dropout.
  • Support up to 80mA output current.
  • 2% Typical LED current accuracy.
  • 1% Typical LED current matching.
  • Soft start function.
  • Auto charge pump mode selection.
  • 500kHz fixed frequency oscillator.
  • Output over voltage protection.
  • 16-Step brightness control.
  • Low input noise and EMI.
  • Low 1μA shutdown current.
  • Package.
  • QFN3×3.

📥 Download Datasheet

Datasheet Details

Part number LN9364
Manufacturer natlinear
File Size 209.38 KB
Description 80mA 4-Channel Charge Pump White LED Driver
Datasheet download datasheet LN9364 Datasheet

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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.

View original datasheet text
LN9364 80mA 4-Channel Charge Pump White LED Driver with Low Dropout Current Source ■ General Description The LN9364 is a high performance white LED driver. It integrates current sources and automatic mode selection charge pump. The part maintains the high efficiency by utilizing an x1/x1.5 fractional charge pump and low dropout current sources. The small equivalent x1 mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of x1 mode and optimize the efficiency of Li-ion battery in white LED applications. The LN9364 supports up to 4 white LEDs and regulates a constant current for uniform intensity. The part implements a 4-bit DAC for brightness control. Users can easily configure the LED current from 1.25mA to 20mA by a serial pulse.
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