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Toshiba Releases Stepping Motor Driver IC That Contributes to Saving Space on Circuit Boards

August 25, 2022

Toshiba Electronic Devices & Storage Corporation

Toshiba Releases Stepping Motor Driver IC That Contributes to Saving Space on Circuit Boards

KAWASAKI, Japan—Toshiba Electronic Devices & Storage Corporation ("Toshiba") has expanded its lineup of stepping motor driver ICs with the launch of “TB67S549FTG,” a stepping motor driver IC housed in a small package, with built-in constant-current control that does not require external circuit components. The new driver contributes to saving space on circuit boards and is suited for industrial equipment such as office automation and financial equipment. Shipments start today.

TB67S549FTG uses Toshiba’s DMOS FET[1] for its output power transistor, and features a motor output voltage rating of 40V and a motor output current rating of 1.5A[2]. Use of the QFN24 package reduces the mounting area to about 64% of the QFN32 package used for Toshiba’s current product, TB67S539FTG. This helps save space on circuit boards.

In addition, the new driver incorporates a current detection part for constant-current motor control, and requires no external capacitor for a charge pump circuit. This will reduce external circuit components, thereby saving space on circuit boards.

TB67S549FTG supports motor power supply voltages from 4.5V to 33V, and has a current consumption of up to 1μA in sleep mode, making it widely usable for 12V/24V power supply applications.

Toshiba will continue to develop products for a wide range of applications, and to provide total solutions that contribute to user design simplification, board area reduction, and total cost reduction.

Notes:

[1] Double-Diffused MOSFET
[2] The actual current that can drive motors is limited by ambient temperature, power supply voltage and other operating conditions.

Applications

  • Printers
  • Multi-function printers (MFPs)
  • Automatic teller machines (ATMs)
  • Money-changing machines
  • Surveillance cameras
  • Projectors

Features

  • Small QFN24 package: 4.0mm × 4.0mm (typ.)
  • External current detection resistor is not required for constant current motor control.
  • Requiring no external capacitor for charge pump circuit.
  • Low power consumption in a sleep mode: IM1=1μA (max)

Main Specifications

(Unless otherwise specified, @Ta=25°C)

Part number

TB67S549FTG

Operation ranges

Motor power supply  VM  (V)

@Ta=-20

 to 85°C

4.5 to 33

Absolute maximum ratings

Motor output voltage  VOUT  (V)

40

Motor output current   IOUT  (A)

1.5

Supported motors

Bipolar stepping motor

Output transistor between
drain and source On resistance
(upper + lower)

RON(D-S)  typ.  (Ω)

@VM=24V,

Tj=25°C,

IOUT=2.0A

1.2

Power consumption  IM1  max  (μA)

@Sleep mode

1

Safety function

Over-current detection, Thermal shutdown, Under voltage lockout

Package

Name

QFN24

Size  typ.  (mm)

4.0×4.0

Sample Check & Availability

Buy Online

Follow the link below for more on the new product.

TB67S549FTG

Follow the link below for more on Toshiba’s stepping motor driver ICs.

Stepping Motor Driver ICs

To check availability of the new products at online distributors, visit:

TB67S549FTG
Buy Online

Customer Inquiries

Analog & Automotive Device Sales & Marketing Dept

Tel: +81-44-548-2219

* Company names, product names, and service names may be trademarks of their respective companies.
* 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.