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.