MCP2021-330E/SN Microchip

MCP2022 MCP2021 MCP2021/2 LIN Transceiver with Voltage Regulator Features Description The MCP2021 and MCP2022 are compliant with The MCP2021/2 provides a bidirectional, half-duplex LIN Bus Specifications 1.3, 2.0, and 2.1 and are communication physical interface to automotive, and compliant to SAE J2602 industrial LIN systems to meet the LIN bus specification Revision 2.0. The device incorporates a voltage Support Baud Rates up to 20 Kbaud with regulator with 5V 50 mA or 3.3V 50 mA regulated LIN-compatible output driver power supply output. The regulator is short circuit 43V load dump protected protected, and is protected by an internal thermal shut- Very low EMI meets stringent OEM requirements down circuit. The regulator has been specifically Wide supply voltage, 6.0V - 18.0V continuous: designed to operate in the automotive environment and - Maximum input voltage of 30V will survive reverse battery connections, +43V load dump transients, and double-battery jumps. The device Extended Temperature Range: -40 to +125C has been designed to meet the stringent quiescent Interface to PIC EUSART and standard USARTs current requirements of the automotive industry. Local Interconnect Network (LIN) bus pin: MCP2021/2 family members: - Internal pull-up resistor and diode - Protected against ground shorts 8-pin PDIP, DFN and SOIC packages: - MCP2021-330, LIN-compatible driver, - Protected against loss of ground 8-pin, 3.3V regulator - High current drive - MCP2021-500, LIN-compatible driver, Automatic thermal shutdown 8-pin, 5.0V regulator On-Board Voltage Regulator: 14-lead PDIP, TSSOP and SOIC packages with - Output voltage of 5.0V with tolerances of RESET output: 3% overtemperature range - MCP2022-330, LIN-compatible driver, - Available with alternate output voltage of 14-pin, 3.3V regulator 3.3V with tolerances of 3% overtemperature - MCP2022-500, LIN-compatible driver, range 14-pin, 5.0V regulator - Maximum continuous input voltage of 30V - Internal thermal overload protection Package Types - Internal short circuit current limit - External components limited to filter DFN-8, PDIP-8, SOIC-8 capacitor only and load capacitor RXD 1 8 FAULT/TXE Two low-power modes: CS/LWAKE 7 VBB 2 - Receiver on, Transmitter off, voltage VREG 6 LBUS 85 A) 3 regulator on ( TXD VSS 4 5 - Receiver monitoring bus, Transmitter off, 16 A) voltage regulator off ( PDIP-14, SOIC-14, TSSOP-14 1 14 FAULT/TXE RXD VBB CS/LWAKE 2 13 VREG 3 12 LBUS TXD VSS 4 11 5 RESET 10 NC NC 6 9 NC NC 7 8 NC 2009 Microchip Technology Inc. DS22018E-page 1MCP2021/2 Block Diagram Thermal Protection Short Circuit RESET Protection Voltage VBB Regulator Ratiometric Reference Internal Circuits VREG Wake-Up Logic and Power Control RXD ~30 k CS/LWAKE LBUS TXD OC FAULT/TXE VSS Thermal Short Circuit Protection Protection DS22018E-page 2 2009 Microchip Technology Inc.