Vishay Intertechnology has launched the VODA1275, an automotive-grade photovoltaic MOSFET driver that delivers 8 mm creepage distance and CTI 600 mold compound in a compact SMD-4 package. The device targets high voltage automotive applications including pre-charge circuits, wall chargers, and battery management systems for EVs and HEVs.
The VODA1275 delivers 20 V open circuit voltage, 20 μA short circuit current, and 80 μs turn-on time—three times faster than competing devices, according to Vishay. The driver provides reinforced isolation with a working isolation voltage of 1260 Vpeak and isolation test voltage of 5300 VRMS, making it suitable for 800 V+ battery systems. The device is AEC-Q102 qualified and meets automotive reliability standards.
The high open circuit voltage allows designers to use a single MOSFET driver instead of two drivers in series, which was previously required for higher voltage applications. This simplifies circuit design and reduces component count in systems that need to drive MOSFETs and IGBTs reliably at high voltages. The driver can also enable custom solid-state relays to replace electromechanical relays in next-generation vehicles.
The optically isolated device draws power from an infrared emitter on the low voltage side, eliminating the need for an external power supply on the isolated side. “The VODA1275 features the industry’s fastest turn-on times and the highest open circuit voltage and short circuit current in its class,” the company stated. The driver is RoHS-compliant and halogen-free. Samples and production quantities are available now with eight-week lead times, priced at $1.20 per piece for US delivery.
Source: Vishay Intertechnology
