Stepping-Motor Drivers Eradicate Additional Circuitry

ROHM Electronics’ high-performance, high-reliability stepping-motor drivers utilise PWM constant-current drive.

This results in increased efficiency and eliminates the need for additional circuitry, such as a snubber circuit, resulting in lower power consumption.

The BD638x drivers feature latch-type over-current protection, ghost-supply prevention and reduced EMI. These protection circuits, and improved layout design, ensure high-reliability performance.

 

FEATURES PWM constant-current drive Single power supply No logic supply needed Simplified power-up/down sequence Simplified PCB layout and routing No charge pump required Full, half, quarter and eighth step-drive options Linearly-variable/fast/slow/mixed-current-decay modes

APPLICATIONS Stepping-motor circuits

 

 

Rohm / Stepping motor driver