Smart gate driver optocoupler provides critical protection features and superior common mode transient immunity performance
The device is an advanced 2.5 A output current IGBT drive optocoupler capable of driving most 1200 V / 150 A IGBTs.
The FOD8318 consists of an integrated gate drive optocoupler featuring low RDS(ON) CMOS transistors to drive the IGBT from rail-to-rail, and isolated feedback circuitry for fault sensing. It provides an Active Miller Clamp function to shut off the IGBT during high dv/dt situations without the need of a negative supply voltage. This enables simpler design and increased reliability. Additionally, the FOD8318 offers the critical protection features necessary for preventing fault conditions that lead to destructive thermal runaway of the IGBTs.
The device is ideally suited for driving fast-switching power IGBTs and MOSFETs in applications such as motor drives, industrial inverters, solar power inverters, uninterruptible power supplies (UPS), induction heating and isolated IGBT drives.
The FOD8318 offers high noise immunity resulting from its proprietary Optoplanar coplanar packaging technology. Optoplanar technology ensures safe insulation thickness of more than 0.4 millimeters, and 8 millimeters creepage and clearance distances, in attaining reliable high-voltage isolation, certified by UL1577 and DIN EN/IEC60747-5-5 standards.
Availability and Pricing
Available in a 16-pin small outline plastic package, the devices in 1,000 piece quantities are priced at $3.80 for the FOD8318 and the $3.82 for the FOD8318V.
More information about the FOD8318 smart gate driver optocoupler at
www.fairchildsemi.com/ds/FO/FOD8318.pdf
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