Toshiba Electronic Devices & Storage Corporation Starts Sample Shipment of Constant-Current 2-Phase Stepping Motor Driver for Automotive Applications

12-Oct-2017 Intellasia | BusinessWire | 3:07 PM Print This Post

Electronic Devices & Storage Corporation
has launched
“TB9120FTG,” a constant-current 2-phase stepping motor driver for
automotive applications. The new IC outputs a sine-wave in electric
current using only a simple clock input interface, with no need for an
advanced functional MCU or dedicated software. Sample shipments start in
November, with mass production scheduled to start in July 2019.

TB9120FTG incorporates DMOS FETs with low on-resistance (upper + lower =
0.7Ω (typ.)), which achieve a maximum current of 1.5A. Both the DMOS
FETs and the controller that generates micro-stepping sine-waves
(supporting up to 1/32 steps) are housed in a small QFN type package
(6.0 mm x 6.0 mm). The new IC delivers an operating temperature range of
-40 to 125℃, and it will be qualified against AEC-Q100, a certified
standard for electronic components for automotive applications. It is
suited to a wide range of general uses, including adjusting the
projection of heads-up displays and various valve controllers.

Main Features of New Product

  • Simple clock input interface
    - Advanced functional MCU or
    software are not required to output sine-waves.
  • Micro step drive, supporting up to 1/32 steps.
    - Less motor noise
    Smoother and more precise control
  • Stall[1] detection circuit
    - A detection signal is
    output from a dedicated pin after detecting a stall.
  • Constant-current PWM control
    - Mixed decay mode ensures stable
    current flow through the motor.
  • Built-in error detections with a warning signal output function
    Thermal shutdown, over-current detection, and load open detection

Main Applications

  • Mirror adjustment for the projection position of heads-up displays
  • Control of various valves

Main Specifications

Part number   TB9120FTG
Driving method Constant-current PWM control
Stepping mode Micro step drive, supporting up to 1/32 steps
Number of drive motors Single 2-phase stepping motor
On resistance

Upper + Lower = 0.7 Ω (typ.) at 25 ℃

Output current 1.5 A (absolute maximum rating)
Error detections

Stall detection, thermal shutdown, over-current
and load open detection

Operating voltage range 7V to 18V (absolute maximum rating = 40V)
External power supply Single power supply
Operating temperature range

-40 to 125℃

Package P-VQFN28-0606-0.65

6.0mm x 6.0mm

Wettable pins with excellent solderability

Reliability Qualified based on AEC-Q100
Sample shipment November 2017
Mass production   July 2019 (scheduled)

[1] Motor stall: When motor rotation deviates from the
control signal, stalling occurs and the motor stops rotating.

For more information about the new product, please visit:

Customer inquiries:
Mixed Signal IC Sales and Marketing
Tel: +81-44-548-2821

*Information in this document, including product prices and
specifications, content of services and contact information, is current
on the date of the announcement but is subject to change without prior

About Toshiba Electronic Devices & Storage

Toshiba Electronic Devices & Storage Corporation (TDSC) combines the
vigor of a new company with the wisdom of experience. Since being spun
off from Toshiba Corporation in July 2017, we have taken our place among
the leading general devices companies, and offer our customers and
business partners outstanding solutions in discrete semiconductors,
system LSIs and HDD.

Our 19,000 employees around the world share a determination to maximize
the value of our products, and emphasize close collaboration with
customers to promote co-creation of value and new markets. We look
forward to building on annual sales now surpassing 700-billion yen (US$6
billion) and to contributing to a better future for people everywhere.
out more about us at


Media Inquiries:
Toshiba Electronic Devices & Storage
Chiaki Nagasawa, +81-3-3457-4963
Digital Marketing
[email protected]


Category: BusinessWire, PRAsia

Print This Post