Power Integrations has unveiled five new reference designs targeting 800 V automotive applications based on the company’s 1700 V InnoSwitch3-AQ flyback switcher ICs.

Spanning power levels from 16 W to 120 W, the designs leverage both wound and low-profile planar transformers and target automotive applications such as DC-DC bus conversion, inverter emergency power, battery management and power supplies for auxiliary systems.

The designs feature Power Integrations’ new wide-creepage InSOP-28G package, which supports 1000 VDC on the primary side while providing appropriate creepage and clearance between pins in pollution degree 2 environments.

“The new InSOP-28G package, with its wide 5.1 mm drain-to-source pin creepage distance, addresses the critical need for enhanced safety and reliability in high-voltage applications,” said Mike Stroka, product marketing engineer at Power Integrations. “It provides sufficient isolation that conformal coating can be eliminated, saving a manufacturing process step and associated qualification effort. The InnoSwitch3-AQ IC is intended for 800 V vehicles, simplifying manufacturing while enhancing overall system performance and reliability.”