Claimed to be the industry's first signal-only isolated CAN transceiver to provide an isolation rating to 5kVrms with 125˚C operation, the ADM3054 offers isolated power-detect in an integrated, single-surface-mount package capable of operating in harsh industrial applications. By reducing PCB component count by as much as 70% compared to traditional discrete, optocoupler-based components, the CAN transceiver simplifies design while reducing board space by up to 61%. The CAN physical layer transceiver complies with the ISO 11898 CAN standard. The company's iCoupler digital isolator technology is combined with a three-channel digital isolator with a CAN transceiver in a 10x10mm single-surface-mount, 16-lead, wide-body SOIC package. The device's logic is powered with a single 3.3 or 5V supply on VDD1 while the bus side uses a single 5V supply on VDD2 only. Loss of power on the bus side (VDD2) can be detected by the micocontroller using the integrated VDD2SENSE signal. The transceiver has integrated ±36V fault protection on the bus pins, CANH and CANL, to guard against shorts to power/ground in 12- and 24V systems. The device also has current-limiting and thermal-shutdown features that protect against output short circuits and situations where the bus might be shorted to ground or power terminals.
