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.
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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.
yes, there is a current limit for the TPS92210. It is 3 amps, 2.85 amps on the low side tolerance. This is the peak switch current. There are a lot of mathematical steps to get from peak switch current to input current. the datasheet describes the design process. To optimize the design for higher power it needs to be designed to operate near 130 KHz at low input voltage. This requires knowing the output power, output voltage, transformer turn-ratio, input voltage to design the correct transformer.