Toshiba launches sensorless control pre-driver IC for automotive BLDC motors

Toshiba Electronic Devices & Storage Corporation (Toshiba) today announced the launch of a sensorless control pre-driver IC TB9062FNG for brushless DC motors (BLDC motors) used in automotive applications, including electric pumps. Samples are available now, with mass production scheduled for December this year.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20190327005872/en/

The new pre-driver can control BLDC motors by pulse-width modulation (PWM) input[1] only, without any need for high-performance MCUs and software.

TB9062FNG has an automatic duty generation function that adjusts the output PWM duty cycle to suit the battery voltage (VBAT) at startup, and a soft speed changing function that prevents stalls by suppressing sudden changes in output PWM duty. These functions, which were absent from Toshiba's earlier products, contribute to stable motor control.

TB9062FNG does not require any software development as it is controlled by a hard-wired logic circuit. VBAT over voltage detection, VBAT under voltage detection, over current protection, and thermal shutdown circuits are also implemented. The operating temperature range is -40C to 125C, highly suited to automotive applications.

Main Features

* Simplified motor control by hard-wired logic circuit.

Eliminates need for software development and secures motor control by PWM input only.

* Automatic PWM duty control at startup

Stable motor rotation at startup is secured by adjusting the PWM duty to the VBAT.

* Automatic soft speed changing control

Prevents stalls by suppressing sudden changes of output PWM duty cycle.

* Several abnormality detection functions with flag output.

VBAT over voltage detection, VBAT under voltage detection, thermal shutdown circuit, and current limitation

Main Applications

Automotive electric pumps: water pumps, oil pumps and fuel pumps; automotive electric fans

Main Specifications

Part number TB9062FNG

Power supply voltage

(operating voltage

range) 6.5V to 16.6V

Operating temperature -40C to 125C

Package SSOP24-P-300-0.65A (7.8mmA�7.6mm)

Drive control Sensorless 120 degree commutation

Speed control input PWM input signal

Abnormality detections VBAT over voltage detection; VBAT under voltage detection; thermal shutdown circuit; current limitation

Reliability Toshiba standard

Mass production December 2019

Note:

[1] PWM: Pulse Width Modulation. A semiconductor-based power control method. Output power is controlled by repeated ON/OFF switching.

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

For more information about Toshiba's automotive motor driver ICs, please visit:

https://toshiba.semicon-storage.com/ap-en/product/automotive/motordriver.html

Customer Inquiries:

System LSI Marketing Dept.III

Tel: +81-44-548-2190

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 Electronic Devices & Storage Corporation

Toshiba Electronic Devices & Storage Corporation combines the vigor of a new company with the wisdom of experience. Since becoming an independent company in July 2017, we have taken our place among the leading general devices companies, and offer our customers and business partners outstanding solutions in discrete semiconductors, system LSIs and HDD.

Our 22,000 employees around the world share a determination to maximize the value of our products, and emphasize close collaboration with customers to promote co-creation of value and new markets. We look forward to building on annual sales now surpassing 800-billion yen (US$7 billion) and to contributing to a better future for people everywhere.

Find out more about us at https://toshiba.semicon-storage.com/ap-en/top.html

Source: ANTARA News

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