LIN TRANSCEIVER + 3.3V LDO

The MCP2021A provides a bidirectional, halfduplex communication physical interface to meet the LIN bus specification Revision 2.1 and SAE J2602-2. The device incorporates a voltage regulator with 5V or 3.3V 70 mA regulated power supply output. The device has been designed to meet the stringent quiescent current requirements of the automotive industry and will survive +43V load dump transients, and double battery jumps.

• The MCP2021A/2A is compliant with: - LIN Bus Specifications Version 1.3, and 2.x. - SAE J2602-2
• Support Baud Rates up to 20 kBaud
• 43V Load Dump Protected
• Maximum Continuous Input Voltage of 30V
• Wide LIN Compliant Supply Voltage, 6.0 - 18.0V
• Extended Temperature Range: -40 to +125°C
• Interface to PIC® EUSART and Standard USARTs
• Wake-up on LIN Bus Activity or Local Wake Input
• LIN Bus Pin - Internal Pull-up Termination Resistor and Diode for Slave Node - Protected Against VBAT Shorts - Protected Against Loss of Ground - High Current Drive
• TXD and LIN Bus Dominant Time-out Function
• Two Low-Power Modes - TRANSMITTER OFF Mode: 9? µA (typical) - POWER DOWN Mode: 4.5µA (typical)
• Output Indicating Internal RESET State (POR or SLEEP Wake)
• MCP2021A/2A On-chip Voltage Regulator - Output Voltage of 5.0V or 3.3V 70 mA Capability withTolerances of ±3% Over Temperature Range - Internal Short Circuit Current Limit - Only External Filter and Load Capacitors Needed
• Automatic Thermal Shutdown
• High Electromagnetic Immunity (EMI), Low Electromagnetic Emission (EME)
• Robust ESD Performance: ±15 kV for LBUS and VBB pin (IEC61000-4-2)
• Transient Protection for LBUS and VBB Pins in Automotive Environment (ISO7637)
• Meets Stringent Automotive Design Requirements Including “OEM Hardware Requirements for LIN, CAN and FlexRay Interfaces in Automotive Applications”, Version 1.2, March 2011
• Multiple Package Options Including Small 4x4 mm DFN