CANbus transceiver for automotive networks
The SN65HVD230QDRG4Q1 is a half-duplex CANbus transceiver from Texas Instruments, part of the automotive-grade 65HVD230 family. Rated for 1Mbps data rate, this transceiver meets the CAN 2.0B physical layer requirements for in-vehicle networks — powertrain, body control, and infotainment buses that need deterministic arbitration at up to 1 Mbit/s. The 100 mV receiver hysteresis provides noise margin on a differential bus that sees common-mode voltage shifts from ground offsets and coupled transients in an automotive harness.
Automotive qualification and temperature envelope
The 8-SOIC package's copper leadframe and exposed die attach conduct heat into the PCB copper pour — the board's thermal design sets the actual junction rise above ambient.
Supply rail and bus interface
Operates from a single 3V to 3.6V supply — compatible with 3.3V CAN controllers and MCUs without an external regulator. The supply current draw is typically below 17 mA during dominant bus states, keeping the thermal load low in the SOIC package. Half-duplex architecture means the bus lines (CANH, CANL) are shared for transmit and receive. The driver output is differential with a typical 2V differential output into a 60-ohm load; the receiver input common-mode range extends from -2V to 7V, covering ground shifts in a 12V vehicle electrical system.