The MPC17529EV is a single-chip dual H-bridge power integrated circuit ideal for portable electronic applications including bipolar stepper motors and/or brush-DC motors (e.g., cameras and disk drive head positioners). The 17529 operates at voltages ranging from 2.0V to 6.8V and controls each HBridge independently via parallel MCU interfaces (3.0V and 5.0V compatible logic).
Simplified application diagram
The device has onboard charging pump, built-in through-current protection and undervoltage shutdown function. The 17529 operates in four modes: forward, reverse, brake and tri-state (high impedance). The 17529 had a low total RDS(on) of 1.2 Ω(highest at 25°C). The 17529's low output resistance and high speed provide efficient drives for many types of micromotors.
Internal block diagram
