Toshiba Launches 3 Phase Brushless Sensorless Motor Pre-Driver IC for Automotive Applications chip one stop

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Toshiba Launches 3 Phase Brushless Sensorless Motor Pre-Driver IC for Automotive Applications

2013/09/27Toshiba Automotive

September 27, 2013

TOKYO – Toshiba Corporation (TOKYO: 6502) today announced that it has launched a 3-phase brushless[1] sensorless motor[2] pre-driver IC for automotive applications, "TB9061AFNG". Sample shipments will start in October, with mass production scheduled to start in March, 2014.

The engines of cars equipped with an idling reduction system cut out when the system is activated, and the power source for oil pumps and engine cooling pumps must be shifted from the engine to the motor. The new IC incorporates Toshiba's original brushless motor drive control circuit that can control motors without using heat-sensitive hole sensors[3], securing control of pumps in a very hot environment. The product also contributes to materials and cost reductions.

Applications

Key Features

■Sensorless motor drive

120-degree rectangular wave motor control is realized by an input signal line that measures the induced voltage[4] of the motors and three-phase motor output. The IC does not require external hole sensors, contributing to simple system configuration and smaller PCB size.

■Motor rotation can be controlled by the DC input signal or the PWM input signal.

■Efficient motor drive control by lead angle[5] setting

Selection of preliminary programmed lead angle setting offers improvement of motor drive efficiency.

■A built-in automatic return control functions reduces motor stops caused by external control in DC input control mode.

Main specifications

Notes:

[1]: Motors without commutator (brush).

[2]: Motors that acquire rotary position by comparing motors virtual midpoint voltage and induced voltage generated in drive coils.

[3]: A magnetic sensor to detect rotary position and rotation speed.

[4]: Voltage generated in the coil when turning the motor

[5]: A method to improve the efficiency of the motor by adjusting the phase difference between the voltage and current

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.

Toshiba Corporation- Semiconductor and Storage Products Company　Website＞

http://www.semicon.toshiba.co.jp/eng/index.html?mm=cp0927&no=04

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Companies Website:
http://www.semicon.toshiba.co.jp/eng/index.html?mm=cp0927&no=04

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