AS8530 8Pin LIN Companion IC

Description

The AS8530 is a general purpose System Basis Chip for LIN sensor and actuator slaves. It provides a LIN transceiver, a voltage regulator to operate the electronic unit and its micro controller from car battery supply, a 2-wire microcontroller interface through shared pins to communicate confi guration, diagnostic and status data to the micro controller, to trigger a window watchdog and to access 8 backup registers, all in an 8-pin SOIC package.

The AS8530 has passed successfully the Lin 2.1 Conformance Test.

Key Features

• LIN 2.0/2.1 transceiver, load independent slew control
• LDO for 5V or 3.3V output – selected by factory programming
• Serial 2-wire interface for diagnosis and status readout, watch dog trigger, backup register access
• Normal-, standby or sleep operating modes
• Window watch dog
• Reset generator with factory programmable reset time
• Output voltage monitor with factory adjustable level
• Unique chip ID for traceability
• SOIC 8 package

Applications

• Window lift
• Sun roof
• Battery Sensor (low side)
• Seat Positioning
• HVAC
• Mirror Adjustment
• Rain Sensor

Block diagram for AS8530 8Pin LIN Companion IC