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Gate driver optocoupler ups creepage, clearance

Posted: 10 May 2012 ?? ?Print Version ?Bookmark and Share

Keywords:output current? gate driver? optocoupler?

Fairchild Semiconductor has introduced the FOD8320 output current gate driver optocoupler. The 2.5A device is suited for high power industrial applications that need a gate driver optocoupler which can handle networks greater than 690VAC and constant DC voltages greater than 1000VDC. These include solar and harsh environment inverters, UPS and motor drives.

The optocoupler, featuring the company's Optoplanar packaging technology and optimized IC design, claims high and reliable insulation voltage and high noise immunity. The device is packaged in a wide body 5-pin SOP with a compact footprint for more than 10mm creepage and clearance distance, and 0.5mm internal insulation distance. The FOD8320 provides an extended industrial temperature range of -40?C to +100?C. It is suited for fast switching of power IGBTs and MOSFETs used in industrial inverter applications.

The optocoupler is designed with 35kV/?s minimum CMR resulting from the proprietary Optoplanar coplanar packaging technology. It also eliminates capacitive charge buildup that occurs in the over-under construction.

Other features of the optocoupler include P-Channel MOSFETs at the output stage that enable output voltage swing close to the supply rail. It offers a supply voltage range from 15V to 30V; fast switching speed over full operating temperature range; 400ns max. propagation delay; 100ns max pulse width distortion; and under voltage lockout with hysteresis.

Samples of the FOD8320 are available upon request. They are priced at $2.85 in quantities of 1,000 and delivery is 8-12 weeks ARO.





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