Dear community,

I've developed a demo board for IC evaluation. The Schematic are copied to the official datasheet / Demo board.

1. The board consummation is right.
2. Two board have been mounted. The problem is identical.

After PowerUp, LED1 and LED2 toggle. After Few seconds, only LED 2 toggle.
LED2 means :

1. "Over Temperature"
   The data sheet say that we can disable the NTC by remove it. It's done...
   Exactly the same...
   I think it's not the problem source.
2. "Trigger VBUS input undervoltage loop"
   Any information for debug ???
3. "OverCurrent/OverVoltage"
   Any information for debug ???

Anybody for help ?

 

Dear community,

I've developed a demo board for IC evaluation. The Schematic are copied to the official datasheet / Demo board.

1. The board consummation is right.
2. Two board have been mounted. The problem is identical.

View attachment 309276

After PowerUp, LED1 and LED2 toggle. After Few seconds, only LED 2 toggle.
LED2 means :

1. "Over Temperature"
   The data sheet say that we can disable the NTC by remove it. It's done...
   Exactly the same...
   I think it's not the problem source.
2. "Trigger VBUS input undervoltage loop"
   Any information for debug ???
3. "OverCurrent/OverVoltage"
   Any information for debug ???

Anybody for help ?

I would recommend you not use this, it literally melted in my wife's headphone charging case.

 

Can the TS share the actual circuit schematic with us?? My ability to evaluate a circuit without seeing it is rather poor sometimes, especially when I have no clue.
In addition, I do not understand how the photos provided by TigheKLory relate to post #1, UNLESS he is using the same IC. I must have missed something.

 

Firstly, this thread is unanswered since Dec 2023, until resurrected!
Secondly, the first photo in the second post shows, if you look carefully, a somewhat distressed IP6808. The device in question is quite well-known as a wireless charging controller so there being a melted one doesn't mean you shouldn't use it. Occasionally even good parts die badly - especially if the device is compromised, say, by a bad thermal pad or poor thermal management.