Automotive-grade isolation with 5 kV reinforced barrier
The Skyworks SI8622ED-AS is a 2-channel, unidirectional digital isolator rated for 5000 Vrms isolation — the reinforced barrier level needed for motor drive, inverter, and battery-management systems where galvanic separation between the high-voltage domain and the low-voltage control side is non-negotiable. Capacitive coupling technology delivers 150 Mbps data rate with 13 ns typical propagation delay and 35 kV/µs common-mode transient immunity — the CMTI figure tells you how clean the data stays when a 600 V switching node slams a transient across the isolation barrier.
What the 5000 Vrms rating means for the BOM
5000 Vrms isolation voltage corresponds to a reinforced insulation rating per IEC 60747-17, suitable for applications requiring a 2x safety margin over basic isolation — think traction inverter gate-drive interfaces or on-board charger (OBC) communication links where a single-point failure cannot bridge the safety barrier.
The -AS suffix indicates an automotive-grade variant with the full 5000 Vrms rating. The closest peer in the same family is the SI8622EC-B-IS, which uses the same capacitive-coupling core but is rated for 3750 Vrms — a basic isolation level that does not meet reinforced requirements for automotive traction systems.