MCP2551 product image

MCP2551

High-Speed CAN Transceiver
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Manufacturer
Microchip Technology
Description

The MCP2551 is a high-speed CAN, fault-tolerant device that serves as the interface between a CAN protocol controller and the physical bus. The MCP2551 provides differential transmit and receive capability for the CAN protocol controller and is fully compatible with the ISO-11898 standard, including 24V requirements. It will operate at speeds of up to 1 Mb/s.

 

Typically, each node in a CAN system must have a device to convert the digital signals generated by a CAN controller to signals suitable for transmission over the bus cabling (differential output). It also provides a buffer between the CAN controller and the high-voltage spikes that can be generated on the CAN bus by outside sources (EMI, ESD, electrical transients, etc.).

 

MCP2551 Features

 

• Supports 1 Mb/s operation

• Implements ISO-11898 standard physical layer requirements

• Suitable for 12V and 24V systems

• Externally-controlled slope for reduced RFI emissions

• Detection of ground fault (permanent dominant) on TXD input

• Power-on reset and voltage brown-out protection

• An unpowered node or brown-out event will not disturb the CAN bus

• Low current standby operation

• Protection against damage due to short-circuit conditions (positive or negative battery voltage)

• Protection against high-voltage transients

• Automatic thermal shutdown protection

• Up to 112 nodes can be connected

• High noise immunity due to differential bus implementation

• Temperature ranges:

    - Industrial (I): -40°C to +85°C

    - Extended (E): -40°C to +125°C

Parametrics
Maximum VDD7.0 V
Maximum DC Voltage at TXD, RXD, VREF and VS-0.3 to VDD + 0.3 V
Maximum DC Voltage at CANH, CANL-42 to +42 V
Maximum Transient Voltage on Pins 6 and 7-250 to +25V
Maximum Storage temperature-55 to +15 °C
Maximum Operating ambient temperature-40 to +125 °C
Maximum Virtual Junction Temperature, TVJ-40 to +150 °C
Maximum Soldering temperature of leads (10 seconds)+300 °C
Maximum ESD protection on CANH and CANL pins6 kV
Maximum ESD protection on all other pins4 kV
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