Solid state relay switches through optical command

November 19, 2014 // By Julien Happich
Avago Technologies' ACPL-K30T is claimed to be the industry’s first solid state photovoltaic driver to be automotive qualified per AEC-Q100 Grade 1.

The device features high ESD rating and fast turn-off time (40 µs typical) and is compatible with a wide selection of AEC-Q101 certified MOSFET components to form a solid state relay solution of desired voltage or current rating.

Because the part is optocoupler-based, switching off the LEDs on one side of the part totally cuts off the drive voltage on the other side of the device, making it optimized for use in battery management systems of modern electric vehicles (EV), hybrid electric vehicles (HEV) and plug-in hybrid electric vehicles (PHEV) as well as high-temperature power systems of conventional internal combustion engine vehicles.

The part’s open circuit voltage is 7V (typical at a LED drive current of 10mA), and short circuit current is 5µA. It comes in a stretched SO-8 package compatible with standard surface mount processes, Lead(Pb) free and fully RoHS 6 compliant.

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