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 device 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.).
Quick Spec Supports 1 Mb/s operation Implements ISO-11898 standard physical layer requirements Suitable for 12V and 24V systems The 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 ~ +85°C Extended (E): -40°C ~ +125°C Dimensions: 34 x 31.3mm Net Weight: 2g