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Toshiba Launches Dual Unipolar Stepping Motor Driver IC

Toshiba Corporation (TOKYO:6502) today announced the launch of TB67S158, a dual unipolar motor driver IC for stepping motors. Sample shipments start today, with mass production scheduled to start in October.

Toshiba: dual unipolar stepping motor driver IC "TB67S158FTG" (Photo: Business Wire)

Toshiba: dual unipolar stepping motor driver IC "TB67S158FTG" (Photo: Business Wire)

The number of motors and driver ICs required in products including amusement machines, home appliances and industrial equipment, is growing. On top of this, manufacturers are being asked to downsize equipment to save space and cut energy consumption. As a result, driver ICs are increasingly expected to play multiple roles in driving motors.

Toshiba’s current driver IC “TB67S149” can control only one unipolar motor, but the new “TB67S158” can support dual motor control by incorporating an 8ch-MOSFET. For example, by setting the output to the constant voltage control mode, 4ch-outputs can control the motor while the other 4ch can control the other motor. With this capability, “TB67S158” can be applied to various equipment and meet diverse requirements.

Incorporating a monolithic package structure [1] using Toshiba’s latest analog high-voltage process (80V) has realized both a small, high-radiation, surface-mounting type package (QFN) and lead-inserting type package (SDIP) for flow mounting. This package line-up meets various requirements for space-saving equipment and support part reductions toward downsizing the equipment.

Main features of the new product

  1. Dual unipolar
    The “TB67S158” incorporates 8ch-MOSFET outputs to control dual unipolar motors simultaneously.
  2. Monolithic structure
    Incorporates monolithic structure by adopting the latest analog high-voltage process (BiCD 130nm, 80V). This reduces the mounting space and number of parts, compared with that of control circuits based on transistor arrays, and so on.
  3. Selection of two types of packages according to application
    Surface-mounting type QFN package, best suited for downsizing of the module and set, and mounting type SDIP package for flow mounting, can be selected.
  4. Built-in error detection circuit
    The TB67S158 incorporates thermal shutdown circuit and overcurrent shutdown circuit. Higher equipment safety and reliability are maintained by outputting ERR signal in operation.

Amusement machines such as pachinko and video slot machines; home appliances such as refrigerators and air conditioners; industrial equipment including banking terminals, office- and factory-automation equipment.


Main Specifications of the New Product

Product name   TB67S158FTG   TB67S158NG
Control I/F Parallel input

Serial input

CLK input

Parallel input

Serial input

Absolute maximum

80V, 1.5A (Normal mode)

3.0A (Large mode)

80V, 1.5A (Normal mode)
Package QFN48 SDIP24
Other features  

Built-in error detection circuits (thermal shutdown circuit and
overcurrent shutdown circuit)
Built-in output function of error detection flag (ERR output)
Sequence-free of power supply by single power drive


Note 1: an electronic circuit that is built on a single semiconductor-base material or single chip. One chip on one package.

Customer Inquiries:
Mixed Signal IC Sales & Marketing Department
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 notice.

About Toshiba

Toshiba Corporation, a Fortune Global 500 company, channels world-class capabilities in advanced electronic and electrical product and systems into five strategic business domains: Energy & Infrastructure, Community Solutions, Healthcare Systems & Services, Electronic Devices & Components, and Lifestyles Products & Services. Guided by the principles of The Basic Commitment of the Toshiba Group, “Committed to People, Committed to the Future”, Toshiba promotes global operations towards securing “Growth Through Creativity and Innovation”, and is contributing to the achievement of a world in which people everywhere live in safe, secure and comfortable society.

Founded in Tokyo in 1875, today’s Toshiba is at the heart of a global network of over 590 consolidated companies employing over 200,000 people worldwide, with annual sales surpassing 6.5 trillion yen (US$63 billion).
To find out more about Toshiba, visit

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