austriamicrosystems announces high voltage automotive CMOS LIN 2.1 transceiver ICs with add ons enabling powerful LIN slaves
Application specific features make the AS8520 an ideal companion IC for LIN networked window lift and sun roof actuators / The AS8530 a stripped down version of AS8520 supports LIN sensor or actuator slaves
austriamicrosystems' AS8520 provides a LIN 2.1 transceiver with more than 6kV ESD IEC61000-4-2 capability on bus pin, a low drop out linear voltage regulator, for up to 60mA load, from nominal 6V-18V supply voltage with over voltage capability up to 42V. The AS8520 also features two low side relay drivers and a resistive attenuator with disable switch for power saving. A fourwire microcontroller serial interface for device configuration, window watchdog trigger, diagnosis read out and read/write of eight continuously supplied backup registers, complete the features of AS8520.
The AS8530 is a stripped down version of AS8520 without the application specific relay driver and attenuator, providing two wire shared pin micro controller interfaces to provide the same digital features as AS8520 in an 8pin package. Both circuits are designed for very low quiescent current of typically 36?A in standby mode.
"The AS8520 and AS8530 enable a new generation of LIN nodes. This is due to the fastest startup procedure available on the market, which is achieved by the integration of low power backup registers", says Bernhard Czar, marketing director automotive at austriamicrosystems. "Additionally, all current and future EMC requirements are addressed by the unique integrated automatic slewrate control."
These LIN Companion ICs provide outstanding diagnosis capability through its microcontroller interfaces.
Continuously powered 64bit backup memory and highly secure non latching ESD clamp structure on the bus pin are additional highlights. Both devices are available with 5V or 3,3V regulated output voltage. The AS8520 is in a 24pin 6x6mm QFN package and the AS8530 in an 8pin epSOIC package. Both ICs are suitable for operating environments from -40°C to +125°C. For product specific information about the high voltage automotive CMOS LIN 2.1 Companion ICs please visit austriamicrosystems website at www.austriamicrosystems.com/LIN_CompanionICs.
austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 27 years of analog design capabilities and system knowhow with its own stateoftheart manufacturing and test facilities. austriamicrosystems leverages its expertise in low power and high accuracy to provide industryleading customized and standard analog products. Operating worldwide with more than 1,000 employees, austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces and mobile infotainment in its markets Communications, Industry & Medical and Automotive, complemented by its Full Service Foundry activities. austriamicrosystems is listed on the SIX Swiss Exchange in Zurich (ticker: AMS). For more information, please visit www.austriamicrosystems.com.
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