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With TPS92210 designed for 65W, the Output Power reduces at Lower Input Voltages.

Other Parts Discussed in Thread: TPS92210

I have designed 65W LED Driver ( 90V, 0.72A).

The Output Power remains constant between 150V to 270V AC. But below 150V the output power starts decreasing.

At 100V, the Output power gets reduced to 40W.

Please suggest.