High Voltage Switcher for Non-isolated AC/DC Conversion UCC28880
【產品特性】‧Integrated 700V MOSFET and start-up current source in SOIC-7 package
‧Best in class <100uA IC quiescent current consumption
‧Load short circuit and inductor current run away protection
‧Self biased switcher
‧Internal Current Sense
【產品應用】‧AC/DC Power Supplies with Io <= 100mA
‧Metering, home automation
‧Low side Buck Topology for TRIAC drivr
‧Appliances White Goods
【文字介紹】The UCC28880 integrates the controller and a 700-V power MOSFET into one monolithic device. The device also integrates a high-voltage current source, enabling start up and operation directly from the rectified mains voltage.
The low quiescent current of the device enables excellent efficiency. With the UCC28880 the most common converter topologies, such as buck, buck-boost and flyback can be built using a minimum number of external components.
The UCC28880 incorporates a soft-start feature for controlled start up of the power stage which minimizes the stress on the power-stage components.