3953 Datasheet - Allegro MicroSystems

3953 FULL-BRIDGE PWM MOTOR DRIVER

X = Irrelevant 2 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1995, 2000 Allegro MicroSystems, Inc. * 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

3953 Datasheet (230.05 KB)