Toshiba's New Stepping Motor Driver IC Has an Anti-Stall Feedback Architecture

TOKYO — (BUSINESS WIRE) — April 18, 2017Toshiba Corporation's (TOKYO:6502) Storage & Electronic Devices Solutions Company today announced the launch of “TB67S289FTG,” a stepping motor driver with a Toshiba developed architecture that automatically detects and prevents stalling during operation. Mass production is scheduled to begin in the end of July 2017.

This Smart News Release features multimedia. View the full release here: http://www.businesswire.com/news/home/20170418006703/en/

Toshiba: "TB67S289FTG," a stepping motor driver with a Toshiba developed architecture that automatic ...

Toshiba: "TB67S289FTG," a stepping motor driver with a Toshiba developed architecture that automatically detects and prevents stalling during operation. (Photo: Business Wire)

Stable and highly precise control is a basic operating requirement, for motors used in printers, office appliances, banking terminals such as ATMs, cash dispensers, amusement machines, and home appliances. Recent demand has also emphasized more efficient motor drivers that use less power and generate less heat generation.

Avoiding stalls in stepping motor operation is the highest priority for securing stability and precision in motor control, and is achieved by provision of additional current to assure an operating margin for the motor. Real-time monitoring of motor torque and current feedback, using additional sensors and highly advanced MCU control, are also required to improve efficiency and heat generation.
A further way to improve efficiency and cut down heat generation is to adjust the built-in MOSFET's on-resistance and cut down power loss during operation.

The TB67S289FTG is the first stepping motor driver to apply Toshiba’s original anti-stall and efficiency improvement system, Active Gain Control (AGC)[1], which enables the driver to monitor the motor and torque, and automatically optimizes motor control without additional MCU control. In operation, TB67S289FTG prevents motor stalls and automatically optimizes motor current, depending on torque needed. Compared with current solutions, TB67S289FTG cuts down the motor power by up to 80% at best, winning significant improvements in efficiency and heat improvement without relying on on-resistance.

Further efficiencies can also be achieved when the new stepping motor driver is supported by ACDS[2], Toshiba’s sense-resistor-free current monitor and control system, which allows more free space and uses fewer external components on the PCB.

Toshiba positions the TB67S289FTG as its flag-ship stepping motor driver, a high performance motor control and component reduction solution, and will continue to expand its line-up.

Main Features

1. Anti-stall and high efficiency
Toshiba’s new motor control architecture AGC for anti-stall and high efficiency motor control. Plus sense-resistor-less current control ACDS for additional PCB space. High-resolution 1/32 step (max.) motor control cuts down noise and vibration.

2. Lower heat generation
Heat generation is reduced by low on-resistance (0.46 Ω (upper + lower: typ.)).

3. Small package
Packaging in a small QFN package allows customers to reduce heat problems and simplify PCB design patterns for heat dissipation. It will also realize affordable solutions in terms of space and cost.

4. Built-in error detection circuits
Thermal shutdown, over-current shutdown, under voltage lock-out and motor load open detection circuits contribute to equipment safety and reliability. Also, error status can be flagged to MCU using error flag function.

 

Main Specifications of New Product

Product name  

TB67S289FTG

Control I/F

CLK-IN

Absolute maximum ratings 50V, 3A
Package QFN48
Step resolution Full, Half, Quarter, 1/8, 1/16, and 1/32 step resolution
Other features

- AGC; a current control method for anti-stall and high efficient motor operation
- ACDS; a current control method which does not require sense resistor
- Built-in error detection functions (thermal shutdown, over-current shutdown, under voltage lock out, and motor load open detection)
- Built-in error detection signal output function
- Supports the power-on sequence by the single power drive

Mass production   End of July, 2017 (scheduled)
 

1 | 2  Next Page »
Featured Video
Jobs
CAD Engineer for Nvidia at Santa Clara, California
Design Verification Engineer for Blockwork IT at Milpitas, California
GPU Design Verification Engineer for AMD at Santa Clara, California
Senior Firmware Architect - Server Manageability for Nvidia at Santa Clara, California
Sr. Silicon Design Engineer for AMD at Santa Clara, California
Senior Platform Software Engineer, AI Server - GPU for Nvidia at Santa Clara, California
Upcoming Events
SEMICON Japan 2024 at Tokyo Big Sight Tokyo Japan - Dec 11 - 13, 2024
PDF Solutions AI Executive Conference at St. Regis Hotel San Francisco - Dec 12, 2024
DVCon U.S. 2025 at United States - Feb 24 - 27, 2025



© 2024 Internet Business Systems, Inc.
670 Aberdeen Way, Milpitas, CA 95035
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise