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Toshiba Launches Brushed Motor Pre-Driver IC for Automotive Applications

Toshiba Corporation (TOKYO:6502) today announced the launch of a brushed motor [1] pre-driver IC for automotive applications, TB9052FNG. Sample shipments will start in August, with mass production scheduled to start in March, 2015.

Toshiba: Brushed Motor Pre-Driver IC TB9052FNG for Automotive Applications (Photo: Business Wire)

Toshiba: Brushed Motor Pre-Driver IC TB9052FNG for Automotive Applications (Photo: Business Wire)

Safety-critical automotive systems, such as electric power steering (EPS), must meet the requirements of ASIL-D [2], the highest automotive safety integrity level prescribed in ISO 26262, “Road Vehicles – Functional Safety.” Toshiba’s new brushed motor pre-driver IC integrates essential functions, including a pre-driver circuit[3] and motor current detection circuit[4], plus various failure detection circuits for higher functional safety.

Toshiba has also carried out a range of functional safety analyses to simulate various system failures and will provide customers with documentation to support safety analysis and design.

Key Features of the New Product

1. Built-in motor current detection circuit

Can simplify the system and reduce PCB size.

2. Redundant function for functional safety

Motor current detection circuit with redundant configuration for functional safety.

3. Motor control is selectable

Depending on the system, sequence control or direct control is selectable.

4. Pre-Driver operation is selectable when failure is detected

Control by pre-driver or MCU is selectable, when failure is detected.

 

Main Specifications

Part Number   TB9052FNG
Mass Production March, 2015
Mass Production Volume 1 million per year
Channels 4 channels (high side: 2 channels; low side: 2 channels)
Operating

Voltage Range

+6 to 18V
Operating Temperature Range -40 to 125°C
Input signal Sequence control and direct control
Detection Circuits Battery under voltage detection circuit, 5V under voltage detection circuit, over temperature detection, short detection circuit[5]
Motor Current Detection Circuits Convert motor current to voltage and output to MCU
Package   HTSSOP48-P-300-0.50(12.5mm × 6.1mm × 1.2mm)

[1]: A motor with commutator (brush)
[2]: ASIL: Automotive Safety Integrity Level
[3]: Pre-driver controls the MOSFET for driving motor
[4]: Convert from motor current to voltage and output to MCU
[5]: Detect the short circuit failure between drain and source of a driver (MOSFET)

Customer Inquiries:
Automotive Sales and Marketing Department
Tel: +81-3-3457-3428

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

Toshiba Corporation, a Fortune Global 500 company, channels world-class capabilities in advanced electronic and electrical product and systems into five strategic business domains: Energy & Infrastructure, Community Solutions, Healthcare Systems & Services, Electronic Devices & Components, and Lifestyles Products & Services. Guided by the principles of The Basic Commitment of the Toshiba Group, “Committed to People, Committed to the Future”, Toshiba promotes global operations towards securing “Growth Through Creativity and Innovation”, and is contributing to the achievement of a world in which people everywhere live in safe, secure and comfortable society.

Founded in Tokyo in 1875, today’s Toshiba is at the heart of a global network of over 590 consolidated companies employing over 200,000 people worldwide, with annual sales surpassing 6.5 trillion yen (US$63 billion).
To find out more about Toshiba, visit www.toshiba.co.jp/index.htm

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