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Toshiba Launches H Bridge Driver IC for Low-Voltage 2.5V Drive

Business Wire India

Toshiba Corporation‘s (TOKYO: 6502) Storage & Electronic Devices Solutions Company today announced the launch of “TC78H630FNG,” “TC78H621FNG,” and “TC78H611FNG,” additions to its line-up of H bridge[1] driver ICs for DC brushed motors and stepping motors used in the mobile battery-drive equipment, home appliances, and housing and facility equipment. Sample shipments* start today with mass production scheduled for end of July.


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Toshiba: "TC78H630FNG," "TC78H621FNG," and "TC78H611FNG," additions to its line-up of H bridge drive ...

Toshiba: “TC78H630FNG,” “TC78H621FNG,” and “TC78H611FNG,” additions to its line-up of H bridge driver ICs for DC brushed motors and stepping motors. (Photo: Business Wire)

TC78H630FNG has one H bridge with a 2A rating and is suitable for the large current drive of DC brushed motors. Additionally, making on-resistance[2] 0.4Ω (sum of upper and lower: typ.) in the motor driver output block allows the IC to realize a large current drive for motors.


TC78H621FNG and TC78H611FNG have two H bridges with 1A ratings, and are suitable for driving bipolar stepping motors or two DC brushed motors.


This series supports 2.5V to 15V power supply for driving motors, and diverse applications include mobile devices (cameras and small printers) with a 3.7V lithium-ion battery, home appliances with 5V or 12V power supply (refrigerators and air-conditioners), and housing and facility equipment (smart meters, hot-water supply machines, water supply valves of water service, and electronic locks).


Main Features of New Products


  • Abnormality detection functions (over current detection, thermal shutdown circuit, and under voltage lockout circuit) improve safety in driving the motor.
  • Consumption current of approximately 0μA (typ.) in standby mode (in case of motor stop) is realized.
  • Shoot-through current protection is incorporated. The motor can be controlled without considering the dead time in switching output ON and OFF.

Main Specifications

Part No.   TC78H630FNG   TC78H621FNG   TC78H611FNG



Suitable for large
current drive of DC
brushed motor


Suitable for driving
stepping motors


Suitable for driving 2
DC brushed motors


  Power supply for motor drive: 2.5 to 15V
Logic power supply: 2.7 to 5.5V



2.1 A


1.1 A


1.1 A

Number of
H bridge

  1ch   2ch   2ch





– DC brushed motor
Compatible with
brake mode


– Stepping motor


Full step:
Controllable 3-ports


Half step:
Controllable 4-ports


– DC brushed motor


– Stepping motor


Full step:
Controllable 4-ports


Half step:
Controllable 4-ports


– DC brushed motor
Compatible with
brake mode

Output ON
(Sum of
Upper and


0.4 Ω (typ.)


0.8 Ω (typ.)


0.8 Ω (typ.)


  Over current detection
Thermal shutdown
Under voltage lockout

Shoot-through current protection

Package   TSSOP16
  • Note 1: A circuit formed by aligning transistors in an H form. Used to drive DC brushed motors and stepping motors with forward and reverse control.
  • Note 2: Resistance when current flows. The lower values enable low dissipations for driving motors and reducing a heat generation.

* Sample here refers to “samples for functional evaluation,” which may differ from the mass production product in specifications.


For more information about the new products, please visit:








Customer Inquiries
Mixed Signal IC Sales and Marketing Department


*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 notice.


About Toshiba


Toshiba Corporation, a Fortune Global 500 company, channels world-class capabilities in advanced electronic and electrical product and systems into three focus business fields: Energy that sustains everyday life, that is cleaner and safer; Infrastructure that sustains quality of life; and Storage that sustains the advanced information society. Guided by the principles of The Basic Commitment of the Toshiba Group, “Committed to People, Committed to the Future”, Toshiba promotes global operations and is contributing to the realization of a world where generations to come can live better lives.


Founded in Tokyo in 1875, today’s Toshiba is at the heart of a global network of 550 consolidated companies employing 188,000 people worldwide, with annual sales surpassing 5.6 trillion yen (US$50 billion). (As of March 31, 2016.)
To find out more about Toshiba, visit






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