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A3904 Datasheet Low Voltage Voice Coil Motor Driver

Manufacturer: Allegro MicroSystems

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General Description

The A3904 is a voice coil motor (VCM) driver, with an I2C-compatible serial interface.

Designed for camera autofocus and zoom applications, this high accuracy digital IC is provided in small packages ideal for portable devices.

Its operating voltage range is 2.4 to 5.5 V, and its maximum output current is 127 mA.

Overview

A3904 Low Voltage Voice Coil Motor Driver.

Key Features

  • Fixed I2C logic thresholds.
  • 8-bit D-to-A converter.
  • 500 μA resolution.
  • Low voltage I2C serial interface.
  • Low current-draw sleep mode.
  • 2.4 to 5.5 V operation.
  • 2 mm × 1.5 mm, 0.38 mm nominal overall height DFN.
  • 1.1 mm × 0.7 mm, 0.5 mm maximum overall height WLCSP.
  • 1.1 mm × 0.7 mm, 0.33 mm nominal overall height bare die.

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