VISHAY'S NEW 0.5-A MOSFET, IGBT DRIVER CLOSELY MATCHES 1.0-V MAXIMUM OUTPUT VOLTAGE

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VISHAY'S NEW 0.5-A MOSFET, IGBT DRIVER CLOSELY MATCHES 1.0-V MAXIMUM OUTPUT VOLTAGE
17 August 2006 - Vishay Electronic

Vishay Intertechnology is adding to its optoelectronics product portfolio with a 0.5-A MOSFET/IGBT driver that has a 1.0-V maximum low-level output voltage, eliminating the need for negative gate drive. An isolated solution with a high-speed optocoupler and IGBT/MOSFET driver in one package, the new VO3150 is ideally suited for directly driving IGBTs with ratings up to 1200 V and 50 A in industrial and consumer applications.

Packaged in the 8-pin DIP, the VO3150 saves board space in end products including uninterruptible power supplies, AC and brushless DC motor drives, industrial inverters, switchmode power supplies, and plasma display panels.

The high output voltage of the VO3150 closely matches the positive supply voltage, providing an advantage over other MOSFET/IGBT drivers in applications that call for higher supply voltages to enhance the performance of DMOS or IGBT power devices.

The VO3150 addresses a common problem with power semiconductor devices, where the output voltage drifts upward when the device is run at gate-to-source voltages lower than the 20 V typically specified. To avoid this condition, a typical workaround is the use of a shunt resistor at the gate driver output, which prevents the voltage from drifting up. Because the VO3150 does not exhibit the same upward voltage drift, it eliminates the need for extra components to compensate for such behavior.

The VO3150 features an isolation voltage of 5300 Vrms with a minimum of 15 kV/µs and a typical of 30 kV/µs common mode rejection at a VCM of 1500 V. It enables quieter end products by operating at a high bandwidth with a switching frequency above 16 kHz, which is outside the range of human hearing. It has a maximum propagation delay of only 0.7 µs, a 7-mA maximum supply current, and a wide operating range of 15 V to 30 V with undervoltage lockout protection. It operates over the industrial temperature range of -40 °C to +85 °C.

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About: Vishay Electronic
Vishay Transducers is a division of Vishay Measurements Group. Vishay Measurements Group develops, manufactures, and markets a broad range of sensors for a wide variety of test and measurement applications. These include electrical resistance strain gages for both stress analysis testing and transducer manufacturing applications, load cells for approved weighing applications, force transducers, instrumentation, hybrid strain gage assemblies and bonding services.

Vishay, a Fortune 1,000 Company listed on the NYSE, is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, optoelectronics, and selected ICs) and passive electronic components (resistors, capacitors, inductors, and transducers). The Company's components can be found in products manufactured in a very broad range of industries worldwide. Vishay is headquartered in Malvern, Pennsylvania, and has operations in 17 countries employing over 26,000 people.

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