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A3907 - Low Voltage Voice Coil Motor Driver

General Description

Designed for linear control of small form factor voice coil motors, the A3907 is capable of peak output currents to 102 mA and operating voltages to 5.5 V.

Internal circuit protection includes thermal shutdown with hysteresis, flyback clamp diode, and undervoltage monitoring of VDD.

Key Features

  • WLCSP package for minimum footprint.
  • Ramp control circuit.
  • Fixed I2C logic thresholds.
  • 10-bit D-to-A converter.
  • 100 µA resolution.
  • Low voltage I2C serial interface.
  • Low current draw sleep mode-active low.
  • 2.3 to 5.5 V operation.

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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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A3907 Low Voltage Voice Coil Motor Driver FEATURES AND BENEFITS ▪ WLCSP package for minimum footprint ▪ Ramp control circuit ▪ Fixed I2C logic thresholds ▪ 10-bit D-to-A converter ▪ 100 µA resolution ▪ Low voltage I2C serial interface ▪ Low current draw sleep mode-active low ▪ 2.3 to 5.5 V operation APPLICATIONS: ▪ Camera focus motor DESCRIPTION Designed for linear control of small form factor voice coil motors, the A3907 is capable of peak output currents to 102 mA and operating voltages to 5.5 V. Internal circuit protection includes thermal shutdown with hysteresis, flyback clamp diode, and undervoltage monitoring of VDD. PACKAGE: 6-Bump Chip Scale Package (suffix CG) Functional Block Diagram 1.8 V 1.8 kΩ 1.