News | January 24, 2017

Toshiba Launches Bipolar Stepping Motor Driver IC That Needs No Current Detection Resistors

TOKYO--(BUSINESS WIRE)--

Toshiba Corporation's (TOKYO:6502) Storage & Electronic Devices Solutions Company today announced the launch of “TB67S508FTG,” a bipolar stepping motor driver offering 40V high voltage and 3.0A current with no need for external current detection resistors. Sample shipment starts today.

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Toshiba: a bipolar stepping motor driver

Toshiba: a bipolar stepping motor driver "TB67S508FTG" offering 40V high voltage and 3.0A current with no need for external current detection resistors. (Photo: Business Wire)

Printers, office automation equipment, surveillance cameras, banking terminals such as ATMs, banknote identification machines, amusement machines, and home appliances are being downsized to save space and improve design. Low power consumption is also growing in importance as a means to scale down IC boards and reduce internal heat in products.

The new IC integrates Toshiba’s ACDS[1] architecture, adopted previously in a unipolar stepping motor driver IC. It eliminates the need for two external resistors usually required to detect motor current. By adopting a small QFN36 package (mounting area 5 mm × 5 mm), the new IC reduces the mounting area to about 66% of that of Toshiba’s current products[2]. ACDS also reduces power loss and resistor variation errors, and contributes to low power consumption and highly precise constant current control.

Main Features of the New Product

  • No need for external resistors to detect current.
    ACDS, Toshiba’s original architecture, realizes highly precise constant current motor control without external resistors to detect current.
  • Lower heat generation during motor driving.
    A built-in output DMOS with low-on-resistance (0.45Ω (upper + lower: typ.)) reduces heat generation by 13% when the stepping motor drives operate at 1A, compared to Toshiba’s current products[3] .
  • Small package
    A small, high-heat-radiation QFN36 package saves space and reduces costs.
 

Main Specifications

Part Number   TB67S508FTG
Function   Stepping motor driver
Package   QFN36
I/F   Clock input and phase input
Step resolution modes   Full, half, quarter
Output rating (voltage)   40V
Output rating (current)   3A
Output ON resistor (upper + lower)   0.45Ω (typ.)
Power supply   Support single power drive
Abnormality detection  

Thermal shutdown, over current detection, low power and under voltage detection, and OSCM terminal component open / short detection

Other functions   ACDS and ADMD[4]
 
Notes:
1:   ACDS: Advanced Current Detect System.
2:   Basis for comparison
    Current product: Two detection resistors (5 mm × 2.5 mm) connected to the current IC (7 mm × 7 mm) with QFN48 package
   

New product: (5 mm × 5 mm)

3:   Compared with the current product, TB62213AFTG (maximum output rating 40V/3A)
4:   ADMD: Advanced Dynamic Mixed Decay.
 

For more information about this new product, please visit:
https://toshiba.semicon-storage.com/info/lookup.jsp?pid=TB67S508FTG®ion=apc&lang=en

For more information about Toshiba stepping motor drivers, please visit:
https://toshiba.semicon-storage.com/ap-en/product/linear/motordriver/stepping-motor.html

Customer Inquiries
Mixed Signal IC Sales and Marketing Department
Tel:+81-44-548-2821
https://toshiba.semicon-storage.com/ap-en/contact.html

*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 www.toshiba.co.jp/index.htm.


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