AS8520

Preliminary Data Sheet AS8520 LIN Tr a ns ce i ve r w it h Vol t ag e Re gu la t or, A t t e nua t or, Relay Drivers, MCU Interface for Automotive Applications www.DataSheet4U.com 1 General Description The AS8520 is a companion IC for sensor and actuator LIN slaves. The device provides application specific add-ons, such as the resistive attenuator for battery voltage sensing, a micro controller interface to control 2 relay drivers, to access control register, and diagnosis options. The AS8520 has a window watchdog which can be enabled as a factory option. Micro controller 4-wire interface for relay driver control, device configuration, status and diagnosis read out, register read / write Operating modes: Normal and Standby or Normal and Sleep as a factory option Window Watchdog with timing options if factory enabled Backup registers to store MCU data during VCC shut down Voltage attenuator with disable. Factory selectable ratio options of 21 and 481 Two low side relay drivers RON < 5Ω -40ºC to +125ºC ambient operating temperature AEC Q 100 automotive qualified 6kV ESD on LIN pin according to IEC 61000-4-2 24bit chip ID for traceability and module ID 24-pin QFN (6x6) package 2 Key Features Operating voltage 6 to 18V, max. 42V for 500 ms Linear, low-drop voltage regulator: VCC = 5V ± 3% or VCC = 3.3V as a factory option 50mA load current Typical 35 µA quiescent current in standby mode Undervoltage detection with reset output, factory adjustable undervoltage threshold and re...