LIN TRANSCEIVER + 5.0V LDO

The MCP2022 provides a bidirectional. half-duplex communication physical interface to automotive and industrial LIN systems that meets the LIN bus specification Revision 2.1 and SAE J2602-2. The devices incorporate a voltage regulator with 5V at 50 mA or 3.3V at 50 mA regulated power-supply outputs.The regulator is short-circuit protected, and is protected by an internal thermal shutdown circuit. The device has been specifically designed to operate in the automotive operating environment and will survive all specified transient conditions while meeting all of the stringent quiescent current requirements.

• The MCP2021/2/1Pi2P are Compliant with UN Bus Specifications 1.3. 2.1 and are Compliant to SAE J2602-2
• Support Baud Rates up to 20 kBaud with LIN-compatible Output Driver
• 43V Load Dump Protected
• Very Low EMI Meets Stringent OEM Requirements
• Wide Supply Voltage. 6.0V-18.0V Continuous:
  • Maximum input voltage of 30V
• Extended Temperature Range: -40 to +125°C
• Interface to PIC® EUSART and Standard USARTs
• Local Interconnect Network (LIN) Bus Pin:
  • Internal pull-up resistor and diode
  • Protected against ground shorts
  • Protected against loss of ground
  • High-current drive
• Automatic Thermal Shutdown
• On-Chip Voltage Regulator:
  • Output voltage of 5.0V with tolerances of ±3% over temperature range
  • Available with alternate output voltage of 3.3V with tolerances of ±3% over temperature range
  • Maximum continuous input voltage of 30V
  • Internal thermal overload protection
  • Internal short circuit current limit
  • External components limited to filter capacitor and load capacitor
• Two Low-Power modes:
  • Receiver On, Transmitter Off, Voltage Regulator On (1 85 pA)
  • Receiver Monitoring Bus, Transmitter Off, Voltage Regulator Off (
• " 16 pA)