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Vishay Introduced Automotive-Grade Photovoltaic MOSFET Driver with Integrated Turn-Off Circuitry in a Small SOP-4 Package

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Update time : 2023-06-09 09:12:30
        Vishay Intertechnology, Inc. recently announced a new industry advanced automotive grade PV MOSFET driver, the VOMDA1271, in a space-saving SOP-4 package with integrated turn-off circuitry.The Vishay Semiconductors VOMDA1271 is designed to improve performance in automotive applications while increasing design flexibility and reducing costs, with industry-leading switching speeds and open-circuit output voltages.
 
 
        The recently announced optocoupler integrated turn-off circuit with a typical turn-off time of 0.7ms achieves advanced levels in SOP-4 small package MOSFET drivers. In addition, the VOMDA127 has an on-time of 0.05ms, which is twice as fast as the nearest competitor. As an outstanding driver in this package size, its isolation voltage and typical open-circuit output voltage reach 3750V and 8.5V, respectively, making it suitable for various MOSFET driving applications. 
        The device is AEC-Q102 certified for use in pre-charge circuits, wall chargers, and electric (EV) and hybrid (HEV) vehicle battery management systems (BMS). To generate higher voltages for driving IGBTs and SiC MOSFETs in these applications, two VOMDA1271 optocouplers can be used in series. In addition, with this new driver, designers can replace traditional electromechanical relays with custom solid-state relays when developing next-generation vehicles.
        The opto-isolated VOMDA1271 uses AIGaAs infrared LEDs (IRLDs) whose emitted light is absorbed by a photovoltaic grid array to generate the MOSFET on-state voltage. This architecture does not require an external power supply, thus simplifying the design and reducing cost. The device can be driven by the GPIO pin of the microcontroller, further increasing design flexibility. The new optocouplers are RoHS and Vishay Green compliant and halogen free.. The new optocouplers are RoHS and Vishay Green compliant and halogen free.

 
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