UCC28910

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community UCC28910 UCC28911 SLUS769D – JULY 2013 – REVISED DECEMBER 2016 UCC28910, UCC28911 High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control 1 Features 1 Constant-Voltage (CV) and Constant-Current (CC) Output Regulation Without Optical-Coupler ±5% Output Voltage Regulation Accuracy ±5% Output Current Regulation With AC Line and Primary Inductance Tolerance Compensation 700-V Start-Up and Smart Power Management Enables <30-mW Standby Power 115-kHz Maximum Switching Frequency Design for High-Power Density Valley Switching and Frequency Dithering to Ease EMI Compliance Thermal Shut Down Low Line and Output Over-Voltage Protection 2 Applications Home and Building Automation Power Metering Bias Bias Power for Smoke Alarm, Fire Alarm and Thermostat Wall Adapters, Chargers for Mobile Phones Smart plug, IoT, MCU and WiFi Power Aux power for TV, Server, White Goods LED Lighting 3 Description The UCC28910 and UCC28911 are high-voltage flyback switchers that provide output voltage and current regulation without the use of an optical coupler. Both devices incorporate a 700-V power FET and a controller that process operating information from the flyback auxiliary winding and power FET to provide a precise output voltage and current control. The integrated high-voltage current source for startup that is switched off during device operation, and...