A3906 Datasheet PDF - Allegro MicroSystems Low Voltage Stepper and Single/Dual DC Motor Driver Specs

A3906 - Low Voltage Stepper and Single/Dual DC Motor Driver

Datasheet Summary

Description

Designed for pulse-width modulated (PWM) control of low voltage stepper motors, and single and dual DC motors, the A3906 is capable of output currents up to 1 A per channel and operating voltages from 2.5 to 9 V.

Features

2.5 to 9 V operation.
Internal PWM current limit control.
Synchronous rectification for reduced power dissipation.
Peak current output flag.
Undervoltage lockout.
Low RDS(on) outputs.
Small package.
Brake mode for DC motors.
Sleep function.
Crossover-current protection.
Thermal shutdown.

Datasheet Details

Part number	A3906
Manufacturer	Allegro MicroSystems
File Size	681.79 KB
Description	Low Voltage Stepper and Single/Dual DC Motor Driver
Datasheet	A3906 Datasheet
Additional preview pages of the A3906 datasheet.

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Full PDF Text Transcription

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A3906 Low Voltage Stepper and Single/Dual DC Motor Driver FEATURES AND BENEFITS ▪ 2.5 to 9 V operation ▪ Internal PWM current limit control ▪ Synchronous rectification for reduced power dissipation ▪ Peak current output flag ▪ Undervoltage lockout ▪ Low RDS(on) outputs ▪ Small package ▪ Brake mode for DC motors ▪ Sleep function ▪ Crossover-current protection ▪ Thermal shutdown PACKAGE: 20-contact QFN (suffix ES) DESCRIPTION Designed for pulse-width modulated (PWM) control of low voltage stepper motors, and single and dual DC motors, the A3906 is capable of output currents up to 1 A per channel and operating voltages from 2.5 to 9 V. The A3906 has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor.

Published: Jan 31, 2010 |