Toshiba Launches Brushed Motor Pre-Driver IC for Automotive Applications

TOKYO — (BUSINESS WIRE) — July 28, 2014Toshiba 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)

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