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A3962 Datasheet - Allegro MicroSystems

A3962 DUAL FULL-BRIDGE PWM MOTOR DRIVER

Internal PWM Current Control. The A3962SLB contains a fixed off-time pulse-width modulated (PWM) currentcontrol circuit that can be used to limit the load current to a desired value. The peak value of the current limiting (ITRIP) is set by the selection of an external current-sensing resistor (RS ) .

3962 DUAL FULL-BRIDGE PWM MOTOR DRIVER 3962 Designed for pulse-width modulated (PWM) current control of bipolar stepper motors, the A3962SLB is capable of continuous output currents to ±800 mA and operating voltages to 30 V. Internal fixed off-time PWM current-control circuitry can be used to regulate the maximum load current to a desired value. An internal precision voltage reference is provided to improve motor peak-current control accuracy. The peak load current limit is set by the user’s se.

A3962 Features

* s s s s s s s s ±800 mA Continuous Output Current Rating 30 V Output Voltage Rating Internal PWM Current Control, Saturated Sink Drivers Internally Generated Precision 2.5 V Reference Internal Transient-Suppression Diodes Internal Thermal-Shutdown Circuitry Crossover-Current Protection, UVLO Protec

A3962 Datasheet (86.44 KB)