Texas Instruments UCC28880D | Demoboard PMP21750

Description

Using the UCC28880 FET integrated buck controller, this design provides a universal line to non-isolated 3.3 V/30 mA for arc fault and ground fault circuit Interrupter circuit breaker systems. This tiny design is built on a single-layer PCB in a space optimized 0.680" by 0.480" footprint by implementing a half-bridge rectifier and not requiring a large transformer.

Features

• 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
• Thermal Shutdown
• Protection
  • Current Limit
  • Overload and Output Short Circuit

Typical applications

• Low-Side Buck Topology for TRIAC Driver
• AC-to-DC Power Supplies
• Metering, Home Automation, Infrastructure SMPS
• Appliances, White Goods and LED Drivers

More information

• IC product information