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8-pin LIN companion IC

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The AS8530 is a power management and communication device for LIN sensor and actuator slaves. It provides a LIN transceiver, a voltage regulator, a 2-wire microcontroller interface through shared pins to communicate configuration, 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 addition of enhanced diagnosis functions provides built-in support for the requirements of ISO26262. 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


Key Benefits

  • Enhanced diagnosis features for functional safety applications
  • LIN IC in small SOIC8 package for good form factor
  • LIN 2.1 Standard
  • Fexibiltiy due to various factory options

Product Facts

Typical standby quiescent current [µA] 37
Operating supply range [V] 6 to 18
Regulated output voltage [V] 3.3 or 5
Ambient Temperature Range [°C] -40 to +125
Package SOIC8

Additional Information

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

The AS8530 is suitable for any LIN-networked sensor and actuator slaves including those found in door modules, sunroofs and headlight positioning units. It is ideally suited for safety-critical systems that require an ASIL grading under the provisions of the ISO26262 standard.