3971 - DUAL DMOS FULL-BRIDGE DRIVER

Allegro MicroSystems

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Datasheet Details

Part number	3971
Manufacturer	Allegro MicroSystems
File Size	141.47 KB
Description	DUAL DMOS FULL-BRIDGE DRIVER
Datasheet	3971_AllegroMicroSystems.pdf

3971 Product details

Description

No (Internal) connection Logic ground Control input, bridge 1 Output A, bridge 1 Load supply voltage, bridge 1 Ground Sense resistor, bridge 1 Output B, bridge 1 Control input, bridge 1 Control input, bridge 1 Charge-pump capacitor Charge-pump capacitor Reservoir capacitor Control input, bridge 2 Output B, bridge 2 Sense resistor, bridge 2 Ground Load supply voltage, bridge 2 Output A, bridge 2 Control input, bridge 2 Control input, bridge 2 Logic supply voltage 115 Northeast Cutoff, Box 15036

Features

I ±2.5 A Load Current Capability per Bridge I Parallel Outputs for 5 A Load-Current Capability I Low rDS(on) Outputs Typically 325 mΩ source, 175 mΩ sink I Synchronous Rectification via Control Logic I Internal Undervoltage Monitor I Crossover-Current Protection I Source Connections for External Current Sensing I Thermal Shutdown Circuitry Always order by complete part number: A3971SLB . 3971 DUAL DMOS FULL-BRIDGE DRIVER.

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Published: Mar 30, 2005 |