Product category: Communications ICs (Wired)
News Release from: Microchip Technology | Subject: MCP2551
Edited by the Electronicstalk Editorial Team on 2 August 2002
Speedy CAN transceiver
can tolerate transients
Microchip's new high-speed CAN transceiver withstands short circuit voltages from -40 to +40V and voltage peaks from -250 to +250V without damaging the circuit
Suitable for 12 and 24V systems, the MCP2551 is ideal for automotive and industrial applications serving as the interface between a CAN-protocol controller and the system's physical bus. The device provides a differential transmit and receive capability and adheres to the stringent requirements of the ISO11898 communication standard supporting speeds of up to 1Mbit/s.
This article was originally published on Electronicstalk on 2 August 2002 at 8.00am (UK)
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The device features an externally controlled output slope capability for reduced RFI emissions.
By using the slope control input pin, CANH and CANL differential output signal changes can be controlled such that it is possible to implement networks with lower-cost unshielded wiring while remaining below acceptable levels of radiated emissions.
CANH and CANL are protected against battery short circuits and electrical transients preventing destruction of the transmitter output stage.
The device is further protected from excessive current loading by automatic thermal shutdown circuitry that disables the output drivers when the junction temperature exceeds a nominal limit of 165C.
All other parts of the chip remain operational while the chip temperature is lowered due to the decreased power dissipation in the transmitter outputs.
The devices are available in 8-pin PDIP and SOIC.
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