General Description
The Supertex HV9123 is a Switch Mode Power Supply (SMPS) controller subsystem that can start and run directly from almost any DC input, from a 12V battery to a rectified and filtered 240VAC line. It contains all the elements required to build a single-switch converter except for the switch, magnetic assembly, output rectifier(s) and filter(s).
Features
⺠10 to450V input voltage range
⺠<1.3mA supply current
âº>1.0MHz clock
âº>20:1 dynamic range @ 500KHz
âº99% Maximum duty cycle version
âºLow internal noise
Applications
⺠Off-line high frequency power supplies
⺠Universal input power supplies
⺠High density power supplies
⺠Very high efficiency power supplies
⺠Extra wide load range power supplies
|