LIN bus transceiver, 6-18V, 3.3V reg, 50kb/s, SO-8

Summary

The MCP2021 provides a bi-directional, semi-duplex communication interface to a local interconnect (LIN) and SAE J2602 bus for the automotive and industrial sectors. Operation includes LIN bus specifications of versions 1.3, 2.0, 2.1 and SAE J2602. The device has a voltage regulator with 5V/50mA or 3.3V/50mA output. The regulator is short-circuit-proof and also includes a thermal shutdown. The regulator is specifically designed for use in the automotive environment and can withstand reverse battery conditions, +43V load release transients and double battery jump starts. The device was developed to meet the high quiescent current requirements of the automotive industry.

Additional features

• Physical layer transceiver interface to support LIN bus specifications version 1.3, 2.0, 2.1 + SAE J2602
• LIN bus pin with internal pull-up resistor + diode to protect against earth leakage
• Wake-up by LIN bus activity (filtered) or LWAKE pin
• Thermal shutdown protection
• Integrated voltage regulator with wide operating voltage range up to 30V + control range from 5.5V to 18V
• Load dump protection up to 43V
• MCP2021-330 with 3.3V regulator
• MCP2021-500 with 5V regulator
• Extended temperature range: -40°C to +125°C