High Voltage MOSFET

( 1 Oct 2006 )

Zetex Semiconductors introduces a high voltage MOSFET to handle the requirements of pre-bias supply circuitry. The ZXMNO545G4 is a 450V enhancement mode N-channel device used in a simple linear regulator to supply PWM ICs at start-up. The MOSFET is disabled when the converter is fully on. To maximize resistance to high voltage creepage, the MOSFET is provided in a 4-pinned SOT223 package. By disconnecting one of the two conventional drain pin positions, the device’s new leadframe design extends inter-pin spacing, which is helpful to designers in complying with UL and CE creepage distance specifications. Zetex Semiconductors