A3988 Description
The A3988 is a quad DMOS full-bridge driver capable of driving up to two stepper motors or four DC motors. Each full-bridge output is rated up to 1.2 A and 36 V. The A3988 includes fixed off-time pulse width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be controlled in full, half, and quarter steps, and DC motors in forward,...
A3988 Key Features
- 36 V output rating
- 4 full bridges
- Dual stepper motor driver
- High current outputs
- 3.3 and 5 V patible logic supply
- Synchronous rectification
- Internal undervoltage lockout (UVLO)
- Thermal shutdown circuitry
- Crossover-current protection
- Low profile QFN package