Opto-Electronics


High-speed optocouplers

22 July 2015 Opto-Electronics

Vishay is expanding its VOW Widebody family of high-isolation optocouplers with a new series of high-speed devices capable of 1 MBd and 10 MBd data rates. Designed to increase reliability in high-voltage alternative energy and industrial applications, the VOW135, VOW136, VOW137 and VOW2611 provide a VIOTM of 8000 V, VIORM of 1414 V, and offer an external creepage distance of greater than 10 mm.

The devices consist of a GaAIAs infrared emitting diode, optically coupled with an integrated photo detector. In addition to the increased robustness provided by their high safety isolation, the devices feature an internal Faraday shield to provide the very high input-to-output noise isolation required by high-power switching applications.

They are designed to isolate low- to high-voltage circuits in alternative energy systems such as solar inverters, and in industrial applications such as motion and motor control and welding equipment. Eliminating the need for expensive conformal-coated solutions, they allow designers to meet safety agency requirements at a low cost and with a small form factor.

The VOW135 and VOW136 offer common mode transient immunity of 1000 V/s and high- and low-level propagation delay of less than 2 μs at a data rate of 1 MBd. VOW137 and VOW2611 devices provide a data rate of 10 MBd and boost common mode transient immunity up to 40 000 V/s while keeping high- and low-level propagation delay at less than 100 ns and high pulse width distortion less than 40 ns.

For more information contact EBV Electrolink, +27 (0)21 402 1940, [email protected], www.ebv.com



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