A3951 FULL-BRIDGE PWM MOTOR DRIVER

Allegro MicroSystems

Description

3951 A3951SB 1 2 3 4 LOGIC GROUND LOGIC SUPPLY PHASE ENABLE 5 6 7 8 VBB VCC 12 11 10 9 GROUND SENSE OUTA LOAD SUPPLY 16 15 14 13 LOAD SUPPLY OUTB GROU.
Outputs Disabled Forward Reverse Brake, See Note 4 H SUFFIX 'W', R θJA H L L X X H L X = 38°C/W H H 2 SUFFIX 'B', R θJA = 43°C/W L 125 150 Dw.

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Datasheet Specifications

Part number: A3951
Manufacturer: Allegro MicroSystems
File Size: 201.73 KB
Datasheet: A3951_AllegroMicroSystems.pdf
Description: FULL-BRIDGE PWM MOTOR DRIVER

Features

* I I I I I I I I ± 2 A Continuous Output Current Rating 50 V Output Voltage Rating Internal PWM Current Control Internal Transient Suppression Diodes Under-Voltage Lockout Internal Thermal Shutdown Circuitry Crossover-Current Protection Default Brake Current Limit Always order by complete part numbe

Applications

* this has the effect of shorting the motor’s back-EMF voltage, resulting in current flow that brakes the motor dynamically. However, if the back-EMF voltage is large and there is no PWM current limiting, then the load current can increase to a value that approaches a locked rotor condition. To limit

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A3951 FULL-BRIDGE PWM MOTOR DRIVER Allegro MicroSystems

Allegro MicroSystems A3951-like datasheet