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

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

Toshiba: Sensorless control pre-driver IC "TB9062FNG" for automotive BLDC motors. (Antara/BUSINESS WIRE)

TOKYO--(Antara/BUSINESS WIRE)-- 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.

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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 -40°C to 125°C, 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    -40°C to 125°C
Package                               SSOP24-P-300-0.65A (7.8mm×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

View source version on businesswire.com: https://www.businesswire.com/news/home/20190327005872/en/

Contacts

Media Inquiries:
Toshiba Electronic Devices & Storage Corporation
Digital Marketing Department
Chiaki Nagasawa
Tel: +81-3-3457-4963
semicon-NR-mailbox@ml.toshiba.co.jp

Source: Toshiba Electronic Devices & Storage Corporation


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