Power Integrations has introduced a wide-creepage package option for its InnoSwitch 3-AQ flyback switcher IC for automotive applications. A wide drain-to-source-pin creepage distance of 5.1 mm eliminates the need for conformal coating, making the IC compliant to the IEC60664-1 standard in 800 V vehicles while simplifying manufacturing and increasing system reliability.
Power Integrations’ product marketing engineer, Mike Stroka, said: “Automotive designers rely on the efficiency and low component count of high-voltage power supplies designed around InnoSwitch3-AQ ICs. The increased primary-to-primary creepage and clearance distance between the drain and source pins in the new package provides support for the next generation of EV bus voltages. Power Integrations’ unique InSOP-28G package enables 1000 VDC to be provided to the primary side, while keeping all other pins safely isolated in pollution degree 2 environments.”
Pricing for the new 1700 V-rated InnoSwitch3-AQ switching power supply ICs starts at $6 per unit for 10,000-unit quantities.