Gate Drive Optocouplers Feature High Common Mode Rejection Ratio

7th December 2006
Posted By : ES Admin
Gate Drive Optocouplers Feature  High Common Mode Rejection Ratio

Avago Technologies has introduced three new gate drive optocouplers optimized for reliability and performance. As equipment manufacturers in industrial automation and data center power supply markets transition to developing more energy efficient products which require fast switching operation, Avago has engineered new optocouplers with the industry's highest common mode rejection ratio (40 kV/µs @VCM=1500V). Avago is a leading supplier of innovative semiconductor solutions for advanced communications, industrial and commercial applications.

CMR is the maximum slew rate of common mode voltage (VCM) which can be sustained, keeping the output in the correct logic state. CMR failure results in glitching on the output as either a positive or negative pulse. This key specification guarantees the reliable transfer of drive information at very high DC-link voltage and over fast switching operations.

Avago's new ACPL-3130, ACPL-J313 and ACNW-3130 gate drive optocouplers are ideal for applications such as isolated IGBT/ MOSFET-gate drives for industrial inverters, switching power supplies (SPS) and uninterruptible power supplies. The optocouplers deliver 2.5 A maximum peak output current. Additionally, the products support a wide operating voltage range (15 to 30 volts) required by gate-controlled devices.

Avago Technologies continues to be ahead of the curve by delivering a superior optocoupler product with the industry's highest CMR ratio, said Kheng-Jam Lee, worldwide marketing manager of Avago Technologies' Optical Communication Solutions Division. We've leveraged our technical strength in proprietary shielding technology and unique package design to deliver a timely solution for industrial applications. The addition of these products enables us to provide the broadest portfolio of high-quality, isolated gate drive optocouplers on the market.


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