Stepping motor driver lowers noise and vibration

Efficient operation with accurate current control is key to reducing noise and vibration in stepper motor applications. Toshiba’s adoption of Mixed Decay Mode MDM, a current adjustment function, enables the control of the current and current change to the stepping motor by selecting the most appropriate MDM setting for the target motor. The new IC achieves noise and vibration reduction.

Through the use of Toshiba’s high voltage analogue process, the driver achieves a 50V maximum rating and is able to integrate low ON resistanceMOSFETs for the motor output to operate at R_ON(typ.) 0.49Ω. Maximum current rating is 4A.

The TB67S209FTG offers step resolutions of full, half, quarter, 1/8, 1/16 and 1/32 and features integrated error detection signal output function and provides thermal shutdown, over-current shutdown and under voltage lock out protection. Power on sequencing support is a standard feature.

The new controller is supplied in a small QFN package that will allow designers to reduce heat problems and simplify PCB design patterns for heat dissipation.

The mass production for this device has commenced.