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  Microchip Technology Semiconductor Electronic Components Datasheet  


MCP2022

LIN Transceiver



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MCP2022 pdf
MCP2021/2/1P/2P
LIN Transceiver with Voltage Regulator
Features:
• The MCP2021/2/1P/2P are Compliant with LIN
Bus Specifications 1.3, 2.1 and are Compliant to
SAE J2602-2
• Support Baud Rates up to 20 kBaudwith
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% overtemperature range
- Available with alternate output voltage of
3.3V with tolerances of ±3% overtemperature
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 (85 µA)
- Receiver Monitoring Bus, Transmitter Off,
Voltage Regulator Off (16 µA)
Description:
The MCP2021/2/1P/2P 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 MCP2021/2/1P/2P family of devices includes the
following packages.
8-pin PDIP, DFN and SOIC packages:
• MCP2021-330, LIN-compatible driver, 8-pin, 3.3V
regulator, wake up on dominant level of LBUS
• MCP2021-500, LIN-compatible driver, 8-pin, 5.0V
regulator, wake up on dominant level of LBUS
• MCP2021P-330, LIN-compatible driver, 8-pin,
3.3V regulator, wake up at falling edge of LBUS
voltage
• MCP2021P-500, LIN-compatible driver, 8-pin,
5.0V regulator, wake up at falling edge of LBUS
voltage
14-pin PDIP, TSSOP and SOIC packages with RESET
output:
• MCP2022-330, LIN-compatible driver, 14-pin,
3.3V regulator, RESET output, wake up on
dominant level of LBUS
• MCP2022-500, LIN-compatible driver, 14-pin,
5.0V regulator, RESET output, wake up on
dominant level of LBUS
• MCP2022P-330, LIN-compatible driver, 14-pin,
3.3V regulator, RESET output, wake up at falling
edge of LBUS voltage
• MCP2022P-500, LIN-compatible driver, 14-pin,
5.0V regulator, RESET output, wake up at falling
edge of LBUS voltage
2005-2014 Microchip Technology Inc.
DS20002018H-page 1



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MCP2022 pdf
MCP2021/2/1P/2P
Package Types
MCP2021, MCP2021P
4x4 DFN*
RXD
CS/LWAKE
VREG
TXD
18
2 EP 7
396
45
FAULT/TXE
VBB
LBUS
VSS
MCP2021, MCP2021P
PDIP, SOIC
RXD
CS/LWAKE
VREG
TXD
1
2
3
4
8 FAULT/TXE
7 VBB
6 LBUS
5 VSS
* Includes Exposed Thermal Pad (EP); see Table 1-2.
MCP2021/2 Block Diagram
RXD
CS/LWAKE
VREG
TXD
MCP2021,
6x5 DFN-S*
18
2 EP 7
396
45
FAULT/TXE
VBB
LBUS
VSS
MCP2022, MCP2022P
PDIP, SOIC, TSSOP
RXD 1 14 FAULT/TXE
CS/LWAKE 2 13 VBB
VREG 3 12 LBUS
TXD 4 11 VSS
RESET
5
10 NC
NC 6
9 NC
NC 7
8 NC
Short Circuit
Protection
VREG
Internal Circuits
RXD
CS/LWAKE
TXD
FAULT/TXE
Thermal
Protection
Voltage
Regulator
Wake-Up
Logic and
Power Control
OC
Thermal
Protection
Ratiometric
Reference
RESET
(MCP2022 ONLY)
VBB
+ ~30 k
Short Circuit
Protection
LBUS
VSS
DS20002018H-page 2
2005-2014 Microchip Technology Inc.



Part Number MCP2022
Description LIN Transceiver
Maker Microchip Technology - Microchip Technology
Total Page 30 Pages
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