A3951SB, A3951 Datasheet - Allegro MicroSystems

A3951SB FULL-BRIDGE PWM MOTOR DRIVER

Outputs Disabled H L H H L Forward H L L L H Reverse L X X L L Brake, See Note X = Irrelevant Z = High Impedance (source and sink both off) NOTE: Includes internal default Vsense level for over-current protection. 115 Northeast Cutoff, Box 15036 2 Worcester, Massachusetts 01615.

Data Sheet 29319.4† 3951 FULL-BRIDGE PWM MOTOR DRIVER A3951SB NC 1 VBB REF/BRAKE 2 RC 3 GROUND 4 GROUND 5 LOGIC SUPPLY 6 VCC PHASE 7 ENABLE 8 LOGIC VBB 16 LOAD SUPPLY 15 OUTB 14 GROUND 13 GROUND 12 GROUND 11 SENSE 10 OUTA LOAD 9 SUPPLY Dwg. PP-056-1 ABSOLUTE MAXIMUM RATINGS Load Supply Voltage, VBB 50 V Output Current, IOUT (tw ≤ 20 µs) ±3.5 A (Continuous) ±2.0 A Logic Supply Voltage, VCC 7.0 V Logic Input Voltage Range, VIN -0.3 V to VCC + 0.3 V Sense Voltage, VSEN.

A3951SB Features

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

A3951_AllegroMicroSystems.pdf