MCP2021AT-330E/SN

Drivers, Receivers, Transceivers Overview

The MCP2021AT-330E/SN is a LIN transceiver with an integrated voltage regulator, compliant with LIN Bus Specifications Version 1.3 and 2.1, as well as SAE J2602-2. It supports baud rates up to 20 kBaud and operates within a wide supply voltage range of 6.0V to 18.0V. The device features a 3.3V LDO output capable of delivering up to 70 mA. It withstands 43V load dump transients and offers extended temperature operation from -40°C to +125°C. Packaged in an 8-pin SOIC, it includes fail-safe features such as thermal shutdown, short-circuit protection, and bus dominant time-out.

Drivers, Receivers, Transceivers Feature Summary

• Integrated 3.3V low-dropout voltage regulator providing up to 70 mA for connected microcontrollers
• Robust automotive-grade protection against 43V load dump transients and double battery jumps
• Low-power operational modes including Transmitter Off (90 µA) and Power Down (4.5 µA)
• High electromagnetic immunity with slope control on the LIN bus to minimize emissions

Drivers, Receivers, Transceivers Applications

• Automotive body electronics modules requiring LIN communication
• Industrial serial bus interfaces operating at baud rates up to 20 kBaud
• Systems needing a local regulated power supply derived directly from the LIN transceiver

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-pin SOIC package variant when sourcing. Confirm that the 'T' designation indicates tape and reel packaging if required by assembly equipment. Ensure the component meets the necessary RoHS compliance standards for the target market. Cross-reference the manufacturer's latest datasheet revision to confirm pinout consistency.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a combined LIN physical layer interface and 3.3V power regulation are required in a single package. It is suitable for applications demanding high ESD tolerance and robust transient protection. Consider the 8-pin SOIC footprint constraints during PCB layout. Evaluate the need for the internal pull-up termination resistor for slave node configurations.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MCP2021A/2A family of LIN transceivers manufactured by Microchip Technology. The MCP2021A variant provides a 3.3V regulator, while the MCP2022A offers a 5.0V regulator and includes a dedicated RESET output pin. Both share identical electrical characteristics regarding bus communication and power management capabilities.

Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include other MCP2021A variants with different package options, such as PDIP or DFN. Verify that any substitute maintains the 3.3V regulator output and 70 mA current capability. Ensure compatibility with the 8-pin SOIC footprint if board space is restricted.