Fairchild Semiconductor announced that it is bringing designers of solar inverters, motor drives and induction heating applications what it describes as a best-in-class common mode rejection (CMR) optocoupler solution.
The FOD3120 and FOD3150, 2.5A and 1A output current gate drive optocouplers, are said to achieve the industry’s highest CMR rating and can easily drive 1200V/20A IGBTs and MOSFETs even in the noisiest industrial environment. This noise immunity is instrumental in preventing unwanted switching which can lead to shoot-through current and damage to the IGBT. These devices also offer tight pulse width distortion (100ns), offering smaller filters. Smaller filters consume less power and lead to improved power efficiency. With a 1414V peak working voltage, these gate drive optocouplers are able to accommodate high voltage IGBTs.
The FOD3120 and FOD3150 utilize lead-free (Pb-free) terminals and have been characterized for moisture sensitivity in accordance with the Pb-free reflow requirements of the joint IPC/JEDEC standard J-STD-020.
The units are priced (each, 1000 pieces) as follows: FOD3120 – US $1.26; FOD3150 – US $0.94, with a delivery of 8 weeks ARO.