Motor pre-driver chip targets electric power steering

July 24, 2014 // By Christoph Hammerschmidt
Toshiba Electronics Europe (TEE) has announced a motor pre-driver IC for automotive applications such as electric power steering (EPS) systems where safety is of paramount importance. The TB9052FNG is suitable for use in systems adhering to ASIL-D, the highest automotive safety integrity level prescribed in functional safety standard ISO 26262.

The TB9052FNG incorporates the main pre-driver circuit plus various failure detection circuits for functional safety. Elements included are battery under voltage detection, over temperature and driver short detection circuits.

The IC has four channels: two high side and two low side, and includes a charge pump to solely drive N-channel MOSFETs. It comes in a HTSSOP48-P-300-0.50 package measuring 12.5x6.1x1.2mm. Operating voltage range is +6 to 18V and operating temperature range is from -40 to +125 degrees C.

Sample shipments will start in August, with mass production scheduled to start in March, 2015. Toshiba will also be supplying associated safety analysis documentation.

For more information visit www.toshiba.co.jp/index.htm.