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lee dongun

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Member	Action	Date
lee dongun	Updated Question about si3402 on Forum Hello, I am using the SI3402 chip to use POE. But it does not work properly. The circuit I have constructed is as follows. POE: SI3402 (non-isolated) Ethernet: W5500 Ethernet Transceiver: H2019NL Charging: BQ25601 When POE cable is plugged in, it charges for the first time but it becomes impossible to charge soon. I think that the POE side circuit is a problem because I operate normally when only 5V is applied to the charge IC. Since it is confirmed that 5V is output from the output terminal, it is not a voltage problem. I attach the schematic that I composed with PDF. Please make sure that there is something strange in my circuit. Thank you. Show more	Nov 22 2018, 1:53 PM
lee dongun	Posted Question about si3402 on Forum Hello, I am using the SI3402 chip to use POE. But it does not work properly. The circuit I have constructed is as follows. POE: SI3402 (non-isolated) Ethernet: W5500 Ethernet Transceiver: H2019NL Charging: BQ25601 When POE cable is plugged in, it charges for the first time but it becomes impossible to charge soon. I think that the POE side circuit is a problem because I operate normally when only 5V is applied to the charge IC. I attach the schematic that I composed with PDF. Please make sure that there is something strange in my circuit. Thank you. Show more	Nov 22 2018, 1:51 PM

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