PowerIntLinkSwitch－TN2系列蓝牙墙壁开关参考设计(DER622)
PowerInt公司的DER622是采用LinkSwitchTM-TN2系列LNK3202D非隔离反激拓扑蓝牙墙壁开关参考设计,AC输入宽,3W到250W负载,230VAC时的待机电流小于300uA,无负载输入电流小于75uA,功耗小于15mW,主要用于照明控制.本文介绍了LinkSwitch™-TN2系列产品亮点,以及采用LinkSwitchTM-TN2系列LNK3202D非隔离反激蓝牙墙壁开关参考设计DER622主要特性和指标,电路图,变压器电路图,材料清单和PCB设计图.
The LinkSwitch™-TN2 family of ICs for non-isolated off-line power supplies provide dramatically improved performance compared to traditional linear or cap-dropper solutions. Designs using the highly integrated LinkSwitch-TN2 ICs are more flexible and feature increased efficiency, comprehensive system level protection and higher reliability. The device family supports buck, buck-boost and flyback converter topologies. Each device incorporates a 725 V power MOSFET, oscillator, On/Off control for highest efficiency at light load, a high-voltage switched current source for self-biasing, frequency jittering, fast (cycle-by-cycle) current limit, hysteretic thermal shutdown, and output and input overvoltage protection circuitry onto a monolithic IC.
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