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Allegro A3972SB Dual DMOS Full-Bridge Microstepping PWM Motor Driver Datasheet
The A3972SB is a dual DMOS full-bridge microstepping PWM motor driver designed for pulse-width modulated (PWM) current control of bipolar microstepping stepper motors. It supports continuous output currents up to +1.5 A and operating voltages up to 50 V. The device features internal fixed off-time PWM current-control timing circuitry that can be programmed via a serial interface to operate in slow, fast, and mixed current-decay modes.
Read onlineAllegro A3972SB specifications
| Load Supply Voltage | 15 to 50 V |
|---|---|
| Continuous Output Current | +1.5 A |
| Junction Temperature | +150°C |
| Logic Supply Voltage | 4.5 to 5.5 V |
| Package Type | 24-lead plastic DIP |
Source: Allegro A3972SB Dual DMOS Full-Bridge Microstepping PWM Motor Driver Datasheet
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Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum continuous output current?
The device is capable of continuous output currents to +1.5 A.
From: Allegro A3972SB Dual DMOS Full-Bridge Microstepping PWM Motor Driver Datasheet
Can the current-decay mode be programmed?
Yes, internal fixed off-time PWM current-control timing circuitry can be programmed via a serial interface to operate in slow, fast, and mixed current-decay modes.
From: Allegro A3972SB Dual DMOS Full-Bridge Microstepping PWM Motor Driver Datasheet
What is the maximum continuous output current rating for this motor driver?
The A3972SB is capable of continuous output currents to +1.5 A.
From: Allegro A3972SB Dual DMOS Full-Bridge Microstepping PWM Motor Driver Datasheet
What are the minimum and maximum load supply voltage limits?
The device supports a load supply voltage range from 15 V to 50 V during operation.
From: Allegro A3972SB Dual DMOS Full-Bridge Microstepping PWM Motor Driver Datasheet