Brush DC Motor Drivers – Brush DC motors are the most widely used drivers due to their low cost and simple drive control options. Typical brush DC motors consist of a rotating electromagnet surrounded by a permanent magnet. Rotational torque is produced by the interaction of the magnetic fields and continuous rotation is produced by changing the polarity of the rotating coil with a mechanical commutator and brushes.
Typical brush DC motor drivers consist of a half bridge for single direction operation and an H-bridge configuration for bidirectional control. PWM (Pulse Width Modulation) control can be used to regulate motor speed, torque, or position.
DC motor drivers for all markets, including office automation, automotive and industrial. Depending on the needs of a given application, motor solutions can include features such as:
Internal DMOS outputs or gate controllers to drive external MOSFETs
Forward, Reverse, Coast and Brake modes
Slow, Fast and Mixed PWM decay modes
Commercial grade and fully automotive qualified drivers
Protection features: Under-voltage lockout, thermal shutdown, shoot through, overvoltage, over-current protection
Package options include exposed pad QFN, TSSOP, SOIC and DIP packages all lead (Pb) free