Dec 10, 2022
03:59 AM
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Dec 10, 2022
03:59 AM
we have developed 2kW PFC Board with ICE3PCS01G.
when I did first power on with 12.15VDC, Vref not coming from ic.
after that I replace the new chip, then it worked fine. But again after changing the nearest components during troubleshooting, the same problem came (vref gone), But ICOMP=5V is coming. 4 nos of ic got damaged and the same problem coming.
please suggest a solution.
Solved! Go to Solution.
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1 Solution
Dec 26, 2022
12:47 AM
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Dec 26, 2022
12:47 AM
2 Replies
Dec 11, 2022
06:24 PM
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Dec 11, 2022
06:24 PM
Thanks for your comments.
For the IC, the turn-on voltage is between 11.5~12.9V, turn of is between 10.5~11.9V.
So, for 12.15V, if the Vcc is from 12.9V down to it, the IC will run. If vcc is from 10V up to 12.15V, the IC is off and can't work.
Dec 26, 2022
12:47 AM
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Dec 26, 2022
12:47 AM
THANK YOU SIR,
ALL IC RUNNING WITH VCC=13.9VDC