UCC28880 High Voltage Switcher

UCC28880 High Voltage Switcher

Texas Instruments' 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 startup of the power stage which minimizes the stress on the power-stage components.

  • Integrated power MOSFET (switch) rated to 700 V drain-to-source voltage
  • Integrated high-voltage current source for internal low-voltage supply generation
  • Soft start
  • Self-biased switcher (start-up and operation directly from rectified mains voltage)
  • Supports buck, buck-boost, and flyback topologies
  • <100 μA device quiescent current
  • Robust performance with inductor current runaway prevention
  • Protection:
    • Current limit
    • Overload and output short circuit
    • Over temperature