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Isolated PV MOSFET Driver integrates turn-off circuitry.

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Isolated PV MOSFET Driver integrates turn-off circuitry.
Isolated PV MOSFET Driver integrates turn-off circuitry.
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November 13, 2012 - Supplied in SOP-4 SMT package that measures 6.95 x 4.92 x 2.12 mm, VOM1271 photovoltaic (PV) MOSFET driver is optimized for high-side MOSFET drivers, isolated solenoid drivers, and custom SSRs in such end products as industrial and automatic test equipment systems. Optical coupling provides isolation test voltage of 4,500 VRMS, and other features include open circuit voltage of up to 8.8 V typ and short-circuit current of up to 47 ľA typ.

Vishay Intertechnology Releases New Isolated Photovoltaic MOSFET Driver with Integrated Turn-Off Capability in Compact SOP-4 Package


(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Vishay
63 Lincoln Hwy., P.O. Box 4004
Malvern, PA, 19355
USA



Press release date: November 12, 2012

Device Features High Open Circuit Voltage to 8.8 V, Short-Circuit Current to 47 ľA, and Isolation Test Voltage of 4500 VRMS

MALVERN, Pa. – Vishay Intertechnology, Inc. (NYSE: VSH) today broadens its optoelectronics portfolio with the introduction of a new isolated photovoltaic MOSFET driver in the compact SOP-4 surface-mount package. The new VOM1271 features integrated turn-off circuitry, eliminating the need for external turn-off components and a secondary-side power supply. The new MOSFET driver greatly reduces implementation cost and PCB space usage while increasing overall system reliability and performance.

The VOM1271 is optimized for high-side MOSFET drivers, isolated solenoid drivers, and custom solid-state relays (SSR) in end products including industrial and automatic test equipment systems. Previously, designers have been limited to low-power, off-the-shelf SSRs or bulky and expensive high-voltage "hockey puck" modules for these applications. The VOM1271 allows mechanical SSRs to be replaced with more reliable MOSFET-based solutions requiring a minimum level of system complexity.

The new driver features an open circuit voltage up to 8.8 V typical and a short-circuit current up to 47 ľA typical. The higher open circuit voltage allows designers to choose from a wider range of MOSFETs; the higher short-circuit current decreases the time required to charge the MOSFET's gate. This combination of high open-circuit voltage and short-circuit current boosts the life, reliability, and switching speed of end products.

The VOM1271's optical coupling provides a high isolation test voltage of 4500 VRMS. The isolation provided by the device fulfills the safety requirements mandated by domestic as well as international safety agencies, in addition to delivering an effective barrier to noise between sensitive control circuitry and output loads.

Samples of the VOM1271 are available now. Production quantities are currently available, with lead times of four to six weeks for larger orders. Pricing for U.S. delivery only in 1,000-piece quantities is $2.00 per piece. Follow IGBT and MOSFET drivers from Vishay at http://twitter.com/vishayindust.

Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay's product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com.
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