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MP3364 - 4-Channel Boost WLED Driver

Description

The MP3364 is a step-up converter with four channel current sources.

The device is designed to drive white LED arrays as backlighting for small- or medium-sized LCD panels.

The device uses peak current mode as its PWM control architecture to regulate the boost converter.

Features

  • 3.5V to 36V Input Voltage Range.
  • 4 Channels with Maximum 150mA per Channel.
  • Internal 100mΩ, 50V MOSFET.
  • Configurable fSW Up to 2.2MHz.
  • External Sync SW Function.
  • Multi-Dimming Operation Mode through PWM Input, Including: o Direct PWM Dimming o Analog Dimming o Mixed Dimming with 25% or 12.5% Transfer Point.
  • 15000:1 Dimming Ratio during PWM Dimming when fPWM ≤ 200Hz.
  • 200:1 Dimming Ratio during Analog Dimming through PWM Dimming Signal Input.
  • Excellent.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MP3362 Boost LED Driver
MP3362GJ Boost LED Driver
MP3363 Boost LED Driver
MP3363GJ Boost LED Driver
MP3366 White LED Driver

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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DESCRIPTION The MP3364 is a step-up converter with four channel current sources. The device is designed to drive white LED arrays as backlighting for small- or medium-sized LCD panels. The device uses peak current mode as its PWM control architecture to regulate the boost converter. Four channel current sources are applied to the LED cathode to adjust the LED brightness. The MP3364 regulates the current in each LED string to the value set by an external current-setting resistor, with 2.5% current regulation accuracy between strings. A low on resistance MOSFET and headroom voltage are provided to improve efficiency. The MP3364 has a standard I2C digital interface for easy use. The switching frequency can be configured via a resistor, I2C interface, or external clock.
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