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A3959

Part Number	A3959
Manufacturer	Allegro MicroSystems
Description	DMOS Full-Bridge PWM Motor Driver
Published	Mar 23, 2005
Detailed Description	A3959 DMOS Full-Bridge PWM Motor Driver FEATURES AND BENEFITS ▪ ±3 A, 50 V Output Rating ▪ Low rDS(on) Outputs (270 mΩ,...
Datasheet	A3959 PDF File

Overview

A3959 DMOS Full-Bridge PWM Motor Driver FEATURES AND BENEFITS ▪ ±3 A, 50 V Output Rating ▪ Low rDS(on) Outputs (270 mΩ, Typical) ▪ Mixed, Fast, and Slow Current-Decay Modes ▪ Synchronous Rectification for Low Power Dissipation ▪ Internal UVLO and Thermal-Shutdown Circuitry ▪ Crossover-Current Protection ▪ Internal Oscillator for Digital PWM Timing PACKAGES: Package LB, 24-pin SOIC with internally fused pins Package LP, 28-pin TSSOP with exposed thermal pad Not to scale DESCRIPTION Designed for pulse width modulated (PWM) current control of DC motors, the A3959 is capable of output currents to ±3 A and operating voltages to 50 V.
Internal fixed off-time PWM current-control timing circuitry ...

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