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MPQ3369 - Maximum 100mA/Ch Boost WLED Driver

General Description

The MPQ3369 is a step-up converter with six channel current sources.

It 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.

Key Features

  • 3.5V to 36V Input Voltage Range.
  • 6 Channels with Max 100mA per Channel.
  • Internal 100mΩ, 50V MOSFET.
  • Configurable Switching Frequency Up to 2.2MHz.
  • External Sync SW Function.
  • Multi-Dimming Operation Mode through PWM Input, Including: o Direct PWM Dimming o Analog Dimming o Mix Dimming with 25% or 12.5% Transfer Point.
  • 15000:1 Dimming Ratio in PWM Dimming at fPWM ≤ 200Hz.
  • 200:1 Dimming Ratio at Analog Dimming through PWM Dimming Signal Input.
  • Excellent.

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Other Datasheets by Monolithic Power Systems

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MPQ3369-AEC1 Boost WLED Driver
MPQ3369GF-AEC1 Boost WLED Driver
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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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DESCRIPTION The MPQ3369 is a step-up converter with six channel current sources. It 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. Six channel current sources are applied into the LED cathode to adjust the LED brightness. The MPQ3369 regulates the current in each LED string to the value set via an external current-setting resistor, with 2.5% current regulation accuracy between strings. A low on resistor MOSFET and a low headroom voltage are provided to improve efficiency. The MPQ3669 has a standard I2C digital interface for easy use. The switching frequency can be configured via a resistor, I2C interface, or external clock.