A3982 DMOS Stepper Motor Driver with Translator
The Allegro MicroSystems A3982 is a complete stepper motor driver with a built-in translator designed for easy operation with bipolar stepper motors. It supports full- and half-step modes and features an output drive capacity of up to 35 V and 2 A. The device includes a fixed off-time current regulator that automatically selects between Slow and Mixed decay modes to reduce audible noise and power dissipation.
| Load Supply Voltage Range | 8 - 35 V |
|---|---|
| Logic Supply Voltage Range | 3.0 - 5.5 V |
| Thermal Shutdown Temperature | 165 °C |
The A3982 has an output drive capacity of up to 35 V and 2 A.
It automatically selects Slow decay if the current increases and Mixed decay if the current decreases.
The maximum junction temperature is 150 °C.