Toshiba introduced a new stepping motor driven IC, which helps to save circuit board space

     Toshiba Electronic Components and Storage Devices Co., Ltd. announced the launch of the new member of its stepping motor drive IC product line, "TB67S549FTG". This is a stepping motor drive IC with a small package, built-in constant current control function, without the use of external circuit components. The new driver IC helps to save circuit board space and is suitable for industrial equipment such as office automation and financial equipment.

    The output power transistor of TB67S549FTG uses Toshiba's DMOS FET. The absolute maximum rated motor output motor output voltage is 40V, and the absolute maximum rated motor output current is 1.5A. The product is packaged with QFN24. Compared with the current Toshiba TB67S539FTG packaged with QFN32, the mounting area is reduced by about 36%. This helps save board space.

     In addition, this new driver has built-in current detection components required for constant current motor control, and the charge pump circuit does not require external capacitors. This will reduce the number of external circuit components, thereby saving board space. TB67S549FTG supports 4.5V to 33V motor supply voltage, and the current consumption is 1 in sleep mode μ A. It can be widely used in 12V/24V power supply applications.