Toshiba Introduces New Stepping Motor Driver IC, Helps Save Board Space

August 25, 2022 – Toshiba electronic Components & Storage Corporation (“Toshiba”) announced the launch of “TB67S549FTG”, a new member of its stepper motor driver IC product line. This is a stepper motor driver IC in a small package with built-in constant current control function without external circuit components. The new driver ICs help save board space and are suitable for industrial equipment such as office automation and financial equipment. The product starts shipping today.

Toshiba Introduces New Stepping Motor Driver IC, Helps Save Board Space

The output power transistor of TB67S549FTG adopts Toshiba’s DMOS FET[1]the absolute maximum rated motor output voltage is 40V, and the absolute maximum rated motor output current is 1.5A[2]. The product is packaged in QFN24. Compared with Toshiba’s current product TB67S539FTG, which is packaged in QFN32, the mounting area is reduced by about 36%. This helps save board space.

In addition, this new driver has built-in current sensing components required for constant current motor control, and no external capacitors are required for the charge pump circuit. This reduces external circuit components, which in turn saves board space.

TB67S549FTG supports motor supply voltage from 4.5V to 33V, and the current consumption is 1μA in sleep mode, which can be widely used in 12V/24V power supply applications.

Toshiba will continue to develop products suitable for a wide range of applications, providing total solutions that help simplify user designs, save board space, and reduce overall costs.

  • application:

– Printer

– Multifunction Printer (MFP)

– Automatic Teller Machine (ATM)

– Foreign currency exchange machine

– Surveillance cameras

– projector

  • characteristic:

– Small QFN24 package: 4.0mm×4.0mm (typ.)

– Constant current motor control requires no external current sense resistor.

– The charge pump circuit does not require external capacitors.

– Low power consumption: sleep mode IM1 = 1μA (max)

Main Specifications:

Toshiba Introduces New Stepping Motor Driver IC, Helps Save Board Space


  [1] Double Diffusion MOSFET

  [2] The actual current that drives the motor is subject to ambient temperature, supply voltage and other operating conditions.

The Links:   3HAC022194-001 3HAB3772-75

Published on 09/08/2022