Six channels, 5 kV isolation, and an 85 kV/µs CMTI ceiling
The Texas Instruments ISO7762FQDWQ1 is a six-channel, unidirectional digital isolator built on capacitive-coupling technology. It pushes 100Mbps across a reinforced 5000Vrms isolation barrier, with a common-mode transient immunity of 85kV/µs minimum — the spec that decides whether your data stays clean when a GaN half-bridge switches at 100 V/ns. The 4/2 input-to-output split (four on side 1, two on side 2) fits the typical microcontroller-to-driver signal set: three PWM channels, one fault, plus two enable or status lines. Propagation delay is a symmetrical 16ns max, and pulse-width distortion holds to 4.9ns, so timing-critical loops don't need a lot of margin slop.
This part carries AEC-Q100 automotive qualification, which means it has passed the full suite of stress tests — high-temperature operating life, temperature cycling, moisture sensitivity — that the automotive tier demands. The supply voltage spans 2.25V to 5.5V, so it plays on both 3.3V and 5V rails without a level shifter.
Package and handling
Housed in a 16-pin SOIC with a 7.50 mm body width — the wide-body version that gives you the creepage distance for 5000Vrms. Surface-mount only, so plan for a reflow profile. The tube shipping medium is fine for prototype and low-volume builds; if you need tape-and-reel for production, the base product number ISO7762 has alternate packaging suffixes. No isolated power rail on-chip — you supply Vcc on both sides independently.