3953 Datasheet (Allegro MicroSystems) - FULL-BRIDGE PWM MOTOR DRIVER

3953, FULL-BRIDGE PWM MOTOR DRIVER

* R OUTB 3953 FULL-BRIDGE PWM MOTOR DRIVER ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS 5 RθJT = 6.0°C/W 4 3 SUFFIX 'B', R θJA = 4

3953 BRAKE REF RC GROUND GROUND LOGIC SUPPLY PHASE ENABLE 1 2 3 4 LOGIC 5 6 7 8 VBB VCC 12 11 10 9 GROUND SENSE OUTA LOAD SUPPLY VBB 16 15 14 13 LOAD SUPPLY OUTB MODE GROUND FULL-BRIDGE PWM MOTOR DRIVER Designed for bidirectional pulse-width modulated (PWM) current control of inductive loads, the A3953S is capable of continuous output currents to ±1.3 A and operating voltages to 50 V.

Internal fixed off-time PWM currentcontrol circuitry can be used to regulate the maximum load current

3953 Features

* I I I I I I I ± 1.3 A Continuous Output Current 50 V Output Voltage Rating 3 V to 5.5 V Logic Supply Voltage Internal PWM Current Control Saturated Sink Drivers (Below 1 A) Fast and Slow Current-Decay Modes Automotive Capable I Sleep (Low Current Consumption) Mode I Internal TransientSuppression Dio