Isolated Controller Area Network (CAN) Bus Low pulse width distortion is critical for CAN bus, and IL600 Isolators are specified for just 3 ns typical pulse width distortion. And with a maximum operating temperature of 125°C and no derating, the IL712T tolerates the harshest CAN bus environments. Circuits are illustrated below:

Download Applications Brochure

Low pulse width distortion is critical for CAN bus, and IL600 Isolators are specified for just 3 ns typical pulse width distortion. Their fail-safe output (logic high output for zero coil current) ensures ensures recessive bus state on power-up with no additional circuitry. The speed of IL600 Isolators easily supports the maximum CAN bus transfer speed of 1 Mbps. The IL612 provides 2.5 kVrms isolation (1 minute) and 20 kV/µs transient immunity.

With a maximum operating temperature of 125°C and no derating, the IL712T tolerates the harshest CAN bus environments. The IL712T also provides one-third to one-fourth the propagation delay of the fastest optocouplers. In this illustrative circuit, the SN74F02 provides fail-safe start-up.