Datasheet4U Logo Datasheet4U.com

A3903 Datasheet Low Voltage DC Motor Driver

Manufacturer: Allegro Micro Systems

📥 Download Datasheet

Datasheet Details

Part number A3903
Manufacturer Allegro Micro Systems
File Size 451.96 KB
Description Low Voltage DC Motor Driver
Download A3903 Download (PDF)

General Description

The A3903 is a low voltage bidirectional DC motor driver with a typical input voltage range of 3 to 5.5 V and output currents up to 500 mA.

The unique output full-bridge incorporates sourceside linear operation to allow a constant voltage across the motor coil.

This regulated output minimizes motor voltage change due to I × RDS(on) variation and battery voltage tolerance.

Overview

A3903 Low Voltage DC Motor Driver.

Key Features

  • Constant voltage operation (adjustable).
  • 500 mA output peak rating.
  • Low power standby mode.
  • Small 2 mm × 2 mm, 0.55 mm nominal height DFN package.
  • Typical input voltage range of 3 to 5.5 V.
  • Adjustable constant voltage or PWM operation.
  • Less than 500 nA standby mode current.
  • 40 to 85 operating temperature range.

More Datasheets from Allegro Micro Systems

Part Number Description
A3974 Dual Dmos Full-bridge Microstepping PWM Motor Driver