PT4219 controller equivalent, primary side offline led controller.
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* Constant Current Control Without Secondary Feed back Accurate Constant Current Output Quasi-Resona.
in solid state lighting. It is designed for the flyback topology, and regulates output current accurately without the se.
The PT4219 is a primary side constant current controller which can achieve high power factor in a single stage converter, targeted to applications in solid state lighting. It is designed for the flyback topology, and regulates output current accurate.
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