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3976

Part Number	3976
Manufacturer	Allegro MicroSystems
Description	DUAL FULL BRIDGE PROTECTED MOTOR DRIVER
Published	Mar 30, 2005
Detailed Description	Page 1 of 5 3976 ADVANCED DATASHEET - 02/19/99 (Subject to change without notice) DUAL FULL BRIDGE PROTECTED MOTOR DRI...
Datasheet	3976 PDF File

Overview

Page 1 of 5 3976 ADVANCED DATASHEET - 02/19/99 (Subject to change without notice) DUAL FULL BRIDGE PROTECTED MOTOR DRIVER The A3976 is designed to drive both windings of a bipolar stepper motor or bidirectionally control two DC Motors.
Both H-Bridges are capable of continuous output currents of up to +/- 500 mA and operating voltages to 30V.
Free wheeling, substrate isolated diodes are included for output transient suppression when switching motors or other inductive loads.
For each bridge the PHASE input controls load current polarity by selecting the appropriate source and sink driver pair.
The ENABLE input, when held high, enables the respective output H-bridge.
When both ENABLE pins ar...

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