Toshiba Launches 3-Phase Brushless Sensorless Motor Pre-Driver IC for Automotive Applications
September 27, 2013 - Tokyo, Japan
Toshiba Corporation (TOKYO:6502) today announced that it has launched a 3-phase brushless1 sensorless motor2 pre-driver IC for automotive applications, “TB9061AFNG”. Sample shipments will start in October, with mass production scheduled to start in March, 2014.
Toshiba: 3-phase brushless sensorless motor pre-driver IC for automotive applications, "TB9061AFNG" (Photo: Business Wire)
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 sensors3, securing control of pumps in a very hot environment. The product also contributes to materials and cost reductions.
Key Features of the Product
1. Sensorless motor drive
120-degree rectangular wave motor control is realized by an input signal line that measures the induced voltage4 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.
2. Motor rotation can be controlled by the DC input signal or the PWM input signal.
3. Efficient motor drive control by lead angle5 setting
Selection of preliminary programmed lead angle setting offers improvement of motor drive efficiency.
4. A built-in automatic return control functions reduces motor stops caused by external control in DC input control mode.
|Mass Production||March, 2014|
|Mass Production Volume||1 Million pieces per year|
|Channels||6 channels (high side: 3 channels, low side: 3 channels)|
|Operating Voltage Range||+5.5 to 18V|
|Operating Temperature Range||-40 to 125°C|
|Input Signal||Compatible with both external PWM duty input and DC input control|
|Drive Control||Motor drive overcurrent detection circuit, the motor drive current limiter circuit, VCC overvoltage detection circuit, IC internal overheat detection circuit, external temperature anomaly detection circuit, step-out detection and automatic return control circuit.|
|Detection Circuits||Over current detection, over temperature detection, over voltage detection, low voltage detection of VCC, internal and external temperature detection, external temperature limiter circuit and motor lock detection|
|Diagnostic Circuits||Having the function of determining an abnormality such as a motor lock detection and rotational speed.|
|Package||SSOP24 (7.8mm x 7.6mm x 1.2mm)|
: Motors without commutator (brush).
: Motors that acquire rotary position by comparing motors virtual midpoint voltage and induced voltage generated in drive coils.
: A magnetic sensor to detect rotary position and rotation speed.
: Voltage generated in the coil when turning the motor
: A method to improve the efficiency of the motor by adjusting the phase difference between the voltage and current
Automotive Sales and Marketing Department
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 is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.
Toshiba was founded in 1875, and today operates a global network of more than 590 consolidated companies, with 206,000 employees worldwide and annual sales surpassing 5.8 trillion yen (US$61 billion). Visit Toshiba's web site at www.toshiba.co.jp/index.htm
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Source: Business Wire India