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MP3326 - LED Driver

Description

The MP3326 is a 16-channel WLED driver that can operate from a wide 4V to 16V input voltage range.

The MP3326 applies 16 internal current sources in each LED string terminal.

The LED current of each channel is set by an external current-setting resistor.

Features

  • Wide 4V to 16V Input Voltage Range.
  • 16 Channels, 50mA/Ch Maximum (VIN ≥ 4.5V).
  • LED Current Configured by External Resistor.
  • 6-Bit Analog Dimming for Each Channel.
  • 12-Bit PWM Dimming for Each Channel.
  • Selectable 220Hz, 250Hz, 280Hz, or 330Hz PWM Dimming Frequency.
  • Refresh Signal Output.
  • I2C Interface.
  • 10 Addresses Configurable via External Resistor.
  • Configurable LED Current Slew Rate.
  • 40µs Phase Shift.
  • Fault Indicator.
  • LED Open-Loa.

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Full PDF Text Transcription

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DESCRIPTION The MP3326 is a 16-channel WLED driver that can operate from a wide 4V to 16V input voltage range. The MP3326 applies 16 internal current sources in each LED string terminal. The LED current of each channel is set by an external current-setting resistor. The maximum current of each channel is up to 50mA (VIN ≥ 4.5V). The device integrates an I2C interface with up to 10 configurable I2C addresses via an external resistor. This means the MP3326 can support up to 10 cascaded ICs to drive the LED array. Each channel can be enabled or disabled through the I2C. The MP3326 employs both separated PWM dimming and analog dimming for each LED channel, as well as 12-bit resolution PWM dimming and 6-bit analog dimming for each channel.
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