A3972 - Dual DMOS Full-Bridge Microstepping PWM Motor Driver

Product Overview

Allegro MicroSystems

Part number	A3972
Manufacturer	Allegro MicroSystems
File Size	295.85 KB
Description	Dual DMOS Full-Bridge Microstepping PWM Motor Driver
Datasheet	A3972 Datasheet
Additional preview pages of the A3972 datasheet.

Serial Interface.

The A3972SB is controlled via a 3-wire (clock, data, strobe) serial port.

The programmable functions allow maximum flexibility in configuring the PWM to the motor drive requirements.

I ±1.5 A, 50 V Continuous Output Rating I Low rDS(on) DMOS Output Drivers I Optimized Microstepping via 6-Bit Linear DACs I Programmable Mixed, Fast, and Slow Current-Decay Modes I 4 MHz Internal Oscillator for Digital Timing I Serial-Interface Controls Chip Functions I Synchronous Rectification for Low Power Dissipation I Internal UVLO and Thermal Shutdown Circuitry I Crossover-Current Protection I Precision 2 V Reference I Inputs Compatible with 3.3 V or 5 V Control Signals I Sleep and Idle Mo.

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Published: Mar 23, 2005 |