Photovoltaic output for DC gate drive without a secondary supply
The VOMDA1271T uses a photovoltaic output to generate a floating voltage from the LED input — no secondary bias rail needed.
Switching speed sets the application boundary
Turn-on time is 32µs typical, turn-off 80µs typical — this is a DC-level or slow-switching part, not a PWM isolator. The photovoltaic cell charges the gate capacitance over tens of microseconds, so the intended use is static gate drive (on/off) or signal isolation where the output state holds for milliseconds or longer. For high-frequency switching, a push-pull opto or isolated gate-driver IC with faster CMTI would be needed.
It is ROHS3 compliant.
Surface-mount 4-SMD gull-wing package (4-SOP) — the gull-wing leads provide visual solder-joint inspection and some stress relief between the PCB and the opto body. The DC input type means the LED is driven by a DC forward current up to 50 mA; the typical forward voltage is 1.4V.