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UCC28911 - 产品图解：
UCC28911-UCC28911 具有初级侧稳压和恒流控制功能的高电压反激开关
UCC28911-离线式转换器-离线隔离型DC/DC控制器和转换器-电源管理
UCC28911-UCC28910, UCC28911 High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control
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TI产品 - UCC28911介绍

UCC28911 - UCC28911 具有初级侧稳压和恒流控制功能的高电压反激开关

UCC28911是TI德州仪器公司的一款离线式转换器产品，UCC28911是UCC28911 具有初级侧稳压和恒流控制功能的高电压反激开关，本站介绍了UCC28911的封装应用图解、特点和优点、功能等，并给出了与UCC28911相关的TI元器件型号供参考。

UCC28911 - UCC28911 具有初级侧稳压和恒流控制功能的高电压反激开关 - 离线式转换器 - 离线隔离型DC/DC控制器和转换器 - 德州仪器

产品特性
  • 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
产品应用
  • 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
产品说明

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 the controller current consumption is dynamically adjusted with load. Both enable the very low stand-by power consumption.

Control algorithms in the UCC28910 and UCC28911, combining switching frequency and peak primary current modulation, allow operating efficiencies to meet or exceed applicable standards. Discontinuous conduction mode (DCM) with valley switching is used to reduce switching losses. Built-in protection features help to keep secondary and primary component stress levels in check across the operating range. The frequency jitter helps to reduce EMI filter cost.

Device Information
PART NUMBERPACKAGEBODY SIZE (NOM)
UCC28910SOIC-7 (7)5.00 mm x 6.20 mm
UCC28911SOIC-7 (7)5.00 mm x 6.20 mm
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