The A3968 is a dual full-bridge PWM motor driver with brake from Allegro. It can bidirectionally control two dc motors with output currents of ±650 mA and operating voltages to 30 V.
The Allegro MicroSystems A3968SA and A3968SLB are dual full-bridge PWM motor drivers designed to bidirectionally control two DC motors. Each device includes two H-bridges capable of continuous output currents of +650 mA and operating voltages up to 30 V. Motor winding current is controlled by internal fixed-frequency, pulse-width modulated (PWM) current-control circuitry.
| Continuous Output Current | +650 mA |
|---|---|
| Output Voltage Rating | 30 V |
| Logic Supply Voltage Range | 4.75 V to 5.5 V |
| PWM RC Frequency | 22.9 kHz to 27.9 kHz |
| Thermal Shutdown Temp. | 165°C |
In brake mode, both source drivers are turned OFF and both sink drivers are turned ON to dynamically brake the motor.
When a logic high is applied to both INPUTs of a bridge, all output drivers are disabled.