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A3949

Part Number	A3949
Manufacturer	Allegro MicroSystems
Description	DMOS Full-Bridge Motor Driver
Published	Mar 23, 2005
Detailed Description	A3949 DMOS Full-Bridge Motor Driver Features and Benefits ▪ Single supply operation ▪ Very small outline package ▪ Low ...
Datasheet	A3949 PDF File

Overview

A3949 DMOS Full-Bridge Motor Driver Features and Benefits ▪ Single supply operation ▪ Very small outline package ▪ Low RDS(ON) outputs ▪ Sleep function ▪ Internal UVLO ▪ Crossover current protection ▪ Thermal shutdown protection Packages: Package LB, 16-pin SOIC with internally fused pins Description Designed for PWM (pulse width modulated) control of DC motors, the A3949 is capable of peak output currents to ±2.
8 A and operating voltages to 36 V.
PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals.
Internal synchronous rectification control circuitry is provided to reduce power dissipation d...

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