Recently, Vishay Intertechnology, Inc. (NYSE stock symbol: VSH) announced the launch of a new automotive-

grade photovoltaic MOSFET driver - VODA1275, which is the first to adopt a compact SMD-4 package. The 

creepage distance is 8 mm, and the relative dielectric breakdown index (CTI) of the molding material reaches 

600. Vishay Semiconductors' VODA1275 is specifically designed to enhance the safety and reliability of high-

voltage automotive applications, simplify the design and reduce costs. The device's on-state time, open-circuit 

voltage and short-circuit current all reach advanced industry levels. 

The enhanced isolation device released recently has a typical open-circuit voltage of 20 V, a short-circuit current 

of 20 μA, and a conduction time of 80 μs. It is three times faster than competing products. These features help 

to drive high-voltage system MOSFETs and IGBTs more quickly and reliably. In addition, the device's working 

isolation voltage and isolation test voltage reach 1260 Vpeak and 5300 VRMS respectively, making it an ideal 

choice for 800 V+ battery systems. 

VODA1275 has passed the AEC-Q102 certification and is suitable for pre-charge circuits, wall-mounted chargers, 

as well as battery management systems (BMS) for electric (EV) and hybrid (HEV) vehicles. Previously, to generate 

the higher voltages required for these applications, designers needed to串联两个MOSFET drivers， using the 

high open-circuit output voltage of the devices. With this new type of driver， only one driver is needed to meet 

this requirement， thus saving space and reducing costs. Moreover， when developing the next generation of 

automobiles using this new type of driver， custom solid-state relays can replace traditional electromechanical 

relays. 

The VODA1275 driver for the internal circuit of the optical isolation system draws all the required current from 

the infrared emitter on the low-voltage side of the isolation barrier. This design eliminates the need for an 

external power supply, thus simplifying the design and reducing costs. The MOSFET driver complies with RoHS 

and Vishay green standards and is halogen-free. 

VODA1275 is now available in samples and has achieved mass production. The delivery cycle is 8 weeks.