Toshiba: stepping motor driver IC has anti-stall feedback architecture

Toshiba Electronics Europe launch a stepping motor driver with a Toshiba-developed architecture that automatically detects and prevents stalling during operation. Stable and highly precise control is a basic operating requirement for motors used in printers, office appliances, banking terminals (including ATMs), cash dispensers and home appliances. Recent requirements have also emphasized more efficient motor drivers that use less power and generate less heat.

Motors stall when the motor rotation deviates from the control signal. Avoiding stalls in stepping motor operation is the highest priority for delivering stable and precise motor control and is achieved by providing additional current to ensure an operating margin for the motor. Real-time monitoring of motor torque and current feedback, using additional sensors and highly advanced MCU control, is also required to improve efficiency and heat generation. A further way to improve efficiency and cut down heat generation is to improve the built-in MOSFET's on-resistance thereby reducing 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 enables the driver to monitor the motor and torque, and automatically optimizes the motor control without additional MCU control. In operation, the new TB67S289FTG prevents step-losses and motor stalls, and automatically optimizes motor current, depending upon the torque needed.

Offering step resolutions of full, half, quarter, 1/8, 1/16 and 1/32 steps to cut down noise and vibration, the device includes several built-in, MCU flaggable, error detection functions (thermal shutdown, over-current shutdown, undervoltage lock out, and motor load open detection) that contribute to safety and reliability. It also supports the power-on sequence for a single power drive.

Compared with current solutions, TB67S289FTG reduces motor power by up to 80%, thereby delivering significant improvements in efficiency and heat without relying on the low on-resistance of 0.46Ω (upper + lower typ.). Further efficiencies can also be achieved when the new stepping motor driver is supported by Toshiba's Advanced Current Detection System. The sense resistor-free current monitoring and control system uses less space and fewer external components on the PCB.

Toshiba positions the TB67S289FTG as its flagship stepping motor driver, a high-performance motor control and component reduction solution, and will continue to expand its product line-up. The TB67S289FTG is housed in a small QFN48 package that offers thermal improvements and simplified PCB designs. Mass production has commenced.


WSI's OLED Professional innovations create more value for You.

WSI are the PMOLED manufacturer and our factory located in Chun-Nan in Taiwan. Our products are the market leader and pioneer in PMOLED module, including the monochrome, area colors and full color one...


SKIPPER UBT21 - a Bluetooth 4.0 USB serial adapter for industrial and medical use

SKIPPER UBT21 is a Bluetooth 4.0 USB serial adapter for industrial and medical use. It incorporates a Bluetooth Dual-Mode Stack, supports ranges of up to 300 meters and transferrates of 720 kbit/s (ne...


Three of a kind - Versatility based on Low Power ARM Cortex-A15

At this year's Embedded World, MEN has presented three low power, ARM Cortex-A15-based solutions on different form factors: a VMEbus SBC, an industrial box PC and a COM Express Mini module. All so...


Enabling Embedded IoT

Eurotech, a long-time leading provider of embedded systems and a global leader in IoT enablement, showed its new modules and Multi-service IoT Gateways at Embedded World 2017. The newly introduced Eu...


PLS’ UDE and new UAD2next allow more powerful trace analysis of embedded multicore systems

The new Universal Debug Engine 4.8 from PLS Development Tools offers a bunch of new and improved features for trace analysis of embedded multicore systems. With the new access device UAD2next PLS cont...


Disruptive technologies

Rahman Jamal, Global Technology & Marketing Director, National Instruments, talks about disruptive technologies in the consumer world, but also in measurement, automation, and the embedded industr...


AdaCore Announces Availability of QGen Debugger at Embedded World 2017

Jose Ruiz, technical lead at AdaCore for the company's QGen automatic code generator toolset for model-based development, discusses that product and explains what differentiates it from other prod...


SECO IoT roadmap: from the proof of concept to the market

During Embedded World 2017 Gianluca Venere, SECO Director of Global Sales, leads us to discover the company's Industrial IoT roadmap showcased at SECO's main booth, along with the latest UDOO ...


Internet of Chocolate

HCC show off an embedded chocolate vending machine using MQTT to connect to a broker in the cloud. There is an important message behind this cool demo – security and reliability of embedded soft...