UCC28780 Description
UCC28780 is a high-frequency active-clamp flyback controller that enables high-density AC-to-DC power supplies that ply with stringent global efficiency standards such as DoE Level VI and EU CoC V5 Tier-2. User programmable advanced control law.
UCC28780 Key Features
- 1 Full and Partial Zero Voltage Switching (ZVS) of Primary FET with Adaptive Control
- Programmable Timing for External Si or GaN FETs
- High Switching Frequency up to 1 MHz
- Programmable Adaptive Burst Control and
- Brownout Detection without Direct Line Sensing
- Accurate Programmable Over-Power Protection (OPP) to Support Peak Power Mode
- Fault Protections: Over-Temperature, Output Over-Voltage, Output Short-Circuit, Over-Current, and Pin Fault
- Direct Interface with Optocoupler Based Feedback Allows for Dynamically Scalable Output Voltage
- Internal Soft Start
- NTC Thermistor Interface with External Enable
UCC28780 Applications
- High-Density AC-to-DC Adapters for Notebook, Tablet, TV, Set-Top Box and Printer