Texas Instruments UCC28780RTER

Description

The UCC28780EVM-002 is a 45-W evaluation module (EVM) for evaluating an off-line active-clamp flyback adapter for notebook charging and other applications. The EVM meets CoC Tier 2 and DoE Level 6 efficiency requirements. It is intended for evaluation purposes and is not intended to be an end product. The UCC28780EVM-002 converts input voltage of 90-VRMS to 264-VRMS down to 20-VDC, with a 2.25-A nominal output current rating and a 160-ms limit for over-power capability. The main devices used in this design are active clamp flyback controller UCC28780, SR controller UCC24612, and GaN MOSFET Power IC NV6117 and NV6115. Please read this user's guide thoroughly before applying power to this board.

Features

• 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 Standby Mode for Light-Load Efficiency with Low Output Ripple and Audible Noise Mitigation
• 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

More information

• Datasheet
• IC product information