Repost: PV OptoIsolator / MOS Driver Info
Thomas Lehmann email (remove spam text)
I used the PVI1050N from International Rectifier a lot.
The PVI Series Photovoltaic isolators employ fast turn-off circuitry, so
there is not gate-to-source-resistor needed and the switching times are
The device contains to photovoltaic sources, nominally 5 volts per channel.
Usually the series connection of two channels are used for the gate drive of
one power mosfet.
What speed do you actually achieve, because the app-notes I found by them
regarding these seemed to figure on quite long switching times, and they
didn't seem to quote a different time for the ones with internal resistor.
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