Two integrated transceiver devices from ON Semiconductor are for use in LIN (local interconnect network) and CAN (control area network) designs in automotive and industrial applications. The NCV7425 LIN+LDO transceiver has integrated voltage regulator and reset functionality. The LIN version 2.x /SAE J2602 device interfaces between a LIN protocol controller and the physical bus, and supports transmission rates of up to 20kbit/s. Available in 3.3 and 5V output options, it supports loads up to 150mA and complies with the latest automotive standards, says the company. There is an integrated slope control function for EMI compatibility. The transceiver supports a bus voltage of ±45V and offers on-board functions that include thermal shutdown, indefinite short-circuit protection, load dump protection to 45V, and ESD protection up to ±10kV. An under-voltage detection circuit provides a reset output to a host microcontroller, while the device's INH output can be used to manage auxiliary circuitry including control of an external LDO. The NCV7441 integrates two independent high-speed CAN transceivers which can be individually connected to two CAN protocol controllers. The CAN channels can be separately put to normal or low current standby mode in which remote wake-up from the bus is possible. This reduces overall power consumption, and saves cost and space as it replaces two single CAN transceivers. The transceiver offers high-speed communication at up to 1Mbit/s and ESD performance in excess of ±10kV. Low electromagnetic emissions alleviate the need for an external choke further reducing component count, board space and cost. Both devices are AEC-Q100 qualified, and have rated operating junction temperature ranges of -40 to +150 ºC (NCV7425) and -40 to +125 ºC (NCV7441). The NCV7425 is offered in a Pb-free, RoHS-compliant SOIC-16 WB EP. The NCV7441 is offered in a Pb-free, RoHS-compliant SOIC-14 package.
