SN65LBC031Q Datasheet | Texas Instruments

description TERMINAL FUNCTIONS TERMINAL DESCRIPTION TX GND VCC RX REF Transmitter input Ground Supply voltage Receiver output Reference output The SN75LBC031 is a CAN transceiver used as an interface between a CAN controller and the physical bus for high speed applications of up to CANL CANH ASC Low side bus output driver High side bus output driver Adjustable slope control 500 k Baud. The device provides transmit capability to the differential bus and differential receive capability to the controller. The transmitter outputs (CANH and CANL), feature internal transition regulation to provide controlled symmetry resulting in low EMI emissions. Both FUNCTION TABLE CANH CANL BUS STATE RX Dominant L High or floating Floating Floating Recessive H L = low, H = high transmitter outputs are fully protected against battery short circuits and electrical transients that can occur on the bus lines. In the event of excessive device power dissipation the output drivers are disabled by the thermal shutdown circuitry at a junction temperature of approximately 160°C. The inclusion of an internal pullup resistor on the transmitter input ensures a defined output during power up and protocol controller reset. For normal operation at 500 k Baud the ASC terminal is open or tied to GND. For slower speed operation at 125 k Baud the bus output transition times can be increased to reduce EMI by connecting the ASC terminal to VCC. The receiver includes an integrated filter that suppresses the signal into pulses less than 30 ns wide. The SN75LBC031 is characterized for operation from - 40°C to 85°C. The SN65LBC031 is characterized for operation from - 40°C to 125°C. The SN65LBC031Q is characterized for operation over the automotive temperature range of - 40°C to 125°C. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at...