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.).
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 Dorninant) 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
Specification:-
| Parameter | Value |
| VDD | 7 V |
| DC Voltage at TXD, RXD. VREF and Vs | -0.3V to VDD +0.3V |
| DC Voltage at CANH, CANL | -42V to 42V |
| Transient Voltage on Pins 6 and 7 | -250V to 250V |
| Storage temperature | -55°C to +150°C |
| Operating Temperature | -40°C to +125°C |
| Virtual Junction Temperature | -40°C to +150°C |
* product image for illustration purposes only. actual product may vary.
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