The 17531A is a monolithic dual H-Bridge power IC ideal for portable electronic applications containing bipolar step motors and/or brush DC-motors (e.g., cameras and disk drive head positioners).
The MPC17531A is a monolithic dual H-Bridge power IC designed for portable electronic applications involving bipolar step motors or brush DC-motors, such as cameras and disk drive head positioners. It operates from 2.0 V to 8.6 V using an internal charge pump and features independent control of each H-Bridge via parallel MCU interface.
The device includes built-in shoot-through current protection and an undervoltage shutdown function. It supports four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The driver offers a low total RDS(ON) and can efficiently drive micromotors with PWM control inputs up to 200 kHz for speed and torque regulation.
| Output Current (DC) | 0.7 A |
|---|---|
| Motor Supply Voltage Range | -0.5 to 11.0 V |
| PWM Control Input Frequency | up to 200 kHz |
The device operates from 2.0 V to 8.6 V using the internal charge pump.
Yes, it features a built-in shoot-through current protection circuit.
The 17531A has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance).