VISHAY VOM1271T Photovoltaic MOSFET Driver with Integrated Turn-Off, SOP-4

The VISHAY VOM1271T is a stand-alone, optically isolated photovoltaic MOSFET driver featuring an integrated fast turn-off circuit and solid-state relay functionality. This advanced component simplifies design by drawing all the required power to drive its internal circuitry directly from the LED current on the primary side of the isolation barrier. This innovative approach eliminates the need for an external VCC or VDD power supply, saving both valuable board space and associated costs for designers.

A key feature is the integrated rapid turn-off circuitry, which significantly decreases the turn-off time and increases the overall switching speed. This high-reliability, logic-compatible input driver is housed in a compact SOP-4 package, making it ideal for space-constrained applications. It boasts agency approvals including UL, cUL, VDE, and FIMKO, ensuring compliance with international safety standards.

Performance Specifications

The driver offers reliable performance across a wide ambient operating temperature range from -40°C to +100°C. Key electrical characteristics include a typical LED forward voltage of 1.4V at 10mA, an open circuit voltage of 8.1V at 5mA, and a short circuit current of 7.0μA. It provides robust switching with a typical turn-on time of 53μs and a turn-off time of 65μs under specified test conditions.

Applications

This versatile driver is engineered for a wide array of demanding electronic applications where precise, isolated switching is required. Its design makes it a superior choice for modern, efficient circuit designs.