| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
23 pcs
|
23 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Function | |
| Industrial Grade | |
| Interface | |
| Medical Grade | |
| Military Grade | |
| Motor Type | |
| Mounting Type | |
| Output Configuration | |
| Output Current | |
| Storage Temperature | |
| Tape & Reel | |
| Technology |
The A3972SBT from Allegro MicroSystems is a dual DMOS, full-bridge, microstepping PWM motor driver designed for bipolar stepper motors. It provides continuous output currents of up to ±1.5 A and can operate at voltages up to 50 V.
This IC features integrated control and power stages with low rDS(on) DMOS output drivers. It supports optimized microstepping through 6-bit linear DACs and offers programmable mixed, fast, and slow current-decay modes. The serial interface controls chip functions, and synchronous rectification is employed for low power dissipation. Internal UVLO and thermal shutdown circuitry, along with crossover-current protection, enhance reliability.
The A3972SBT is supplied in a 24-lead plastic DIP package with a power tab at ground potential, requiring no electrical isolation. It is suitable for through-hole mounting and operates over a temperature range of -20°C to 150°C (Junction).
Key electrical characteristics include a logic supply voltage of up to 7V and a sense voltage of 500mV. The device is compatible with 3.3V or 5V control signals and includes sleep and idle modes.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The A3972SBT has a continuous output current rating of 1.5A.
The A3972SBT can handle a maximum load supply voltage of 50V.
The A3972SBT is designed to drive bipolar microstepping stepper motors.
The A3972SBT is supplied in a 24-lead DIP package.
The A3972SBT has an operating temperature range of -20°C to 85°C (Ambient) and a junction temperature up to 150°C.
Yes, the A3972SBT is a microstepping PWM motor driver optimized for microstepping via 6-bit linear DACs.