Key facts
- Brand
- Allegro
- Model
- A3966
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-03
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Allegro MicroSystems A3966 Dual Full-Bridge PWM Motor Driver Datasheet
The A3966SA and A3966SLB are dual full-bridge PWM motor drivers designed to drive both windings of a two-phase bipolar stepper motor. 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.
Read onlineAllegro A3966 specifications
| Continuous Output Current | +650 mA |
|---|---|
| Output Voltage Rating | 30 V |
| Logic Supply Voltage Range | 4.75 V to 5.5 V |
| Operating Temperature Range | -20°C to +85°C |
| Thermal Shutdown Temp. | 165°C |
| PWM RC Frequency | 22.9 kHz to 27.9 kHz |
Source: Allegro MicroSystems A3966 Dual Full-Bridge PWM Motor Driver Datasheet
All Allegro A3966 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the peak load current limit?
The peak load current limit is set by the user's selection of a reference voltage and current-sensing resistors.
From: Allegro MicroSystems A3966 Dual Full-Bridge PWM Motor Driver Datasheet
Does the device require special power-up sequencing?
No, special power-up sequencing is not required for the A3966.
From: Allegro MicroSystems A3966 Dual Full-Bridge PWM Motor Driver Datasheet
What is the continuous output current rating of the A3966SLB?
The device can deliver a continuous output current of up to +650 mA.
What is the maximum output voltage the driver can handle?
The driver is rated for a maximum output voltage of 30 V.