A3964 Description
Designed for pulse width modulated (PWM) current control of bipolar stepper motors, the A3964 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.
A3964 Key Features
- ±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 protection