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SBC packs DC/DC converter, CAN interface

Posted: 04 Nov 2010     Print Version  Bookmark and Share

Keywords:System basis chip  DC/DC converter  CAN interface 

austriamicrosystems rolls out the AS8650, a power management system basis chip (SBC) that combines a DC/DC converter and a high-speed transceiver on one chip targeting next-generation automotive applications.

The AS8650 offers high efficiency of 85 per cent minimum over all operation use-cases, while high integration reduces cost, space and development time for engine control units (ECU) with a high-speed CAN interface (ISO 11898-5). The company plans to roll out a pin-compatible IC with a LIN interface in 2011.

The AS8650 SBC includes three LDOs with programmable outputs from 1.8V to 3.3V. Each LDO is powered by the embedded DC/DC converter, which can supply up to 500mA to power the microcontroller, sensors, actuators and other components. Integrating the DC/DC converter reduces power losses compared with commonly used voltage regulators that convert the automotive battery voltage to 5V, the company said.

Additional features include brown-out indication and output voltage monitoring; configurable watchdog functions for start-up, operation and standby; remote and local wake-up; automatic thermal shutdown protection; and operating temperature range from 40°C to +105°C.

The RoHS compliant AS8650 is sampling now. Available in lead-free 36-pin 6mm x 6mm QFN package, it is priced at Rs.223.35 ($5) each for 1000-units. Production is targeted for Q1 2011.

- Ismini Scouras
  EE Times

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