基于UCC28911型號具有初級側(cè)穩(wěn)壓和恒流控制功能的高電壓反激開關(guān)

　　描述

　　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

　　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

　　相關(guān)終端應(yīng)用

　　Circuit Breaker

　　LCD 測試設(shè)備

　　交流/直流功率計(jì)和分析器

　　儀表(實(shí)驗(yàn)室、分析、現(xiàn)場)

　　內(nèi)存和半導(dǎo)體測試設(shè)備

　　冰箱和冰柜

　　割草機(jī)

　　單相 UPS

　　吸塵器

　　咖啡機(jī)

　　商用 DIN 導(dǎo)軌電源

　　家用水泵和風(fēng)扇

　　家電壓縮機(jī)

　　工業(yè) AC-DC

　　工業(yè)機(jī)器人檢測模塊

　　無管式空調(diào)室內(nèi)系統(tǒng)

　　無管式空調(diào)室外裝置

　　無線控制

　　智能插件

　　有線控制

　　機(jī)器人割草機(jī)

　　油煙機(jī)

　　洗碗機(jī)

　　洗衣機(jī)和干衣機(jī)

　　混料器、攪拌器和食品加工機(jī)

　　烹飪灶具

　　由市電供電的工具

　　電器用戶界面和連接模塊

　　電器電池充電器

　　電子病床和床控制器

　　電網(wǎng)通信模塊 - 無線通信

　　電能質(zhì)量 - 電能質(zhì)量分析儀

　　真空機(jī)器人

　　空氣凈化器和加濕器

　　輸液泵

　　風(fēng)扇

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