How to use stusb4500 get 15V without MCU?

[YReya.1]

Dear Team,

I use stusb4500 and desgin this circuit,

I connected type C with this circuit and measured VBus got 20V, then a few seconds later stusb4500 broke down.

Anything i have lost in this circuit then made it broke down? How to fix this circuit to get 15V in VBus?

 Thanks in advance.

[NBALL]

Hello

By default, stusb4500 has 3 PDOs: 5v/1.5A - 15V/1.5A and 20V/1A.

Thus if source_capability has a PDO@20V with at least 1A, contract will be negociated @20V.

If your system needs to be supplied at 15V or below, during your production, you need to re-program stusb4500 NVM by removing 1 PDO.

If your system needs to be supplied exactly at 15V, during your production, you need to re-program stusb4500 NVM by removing 1 PDO and setting POWER_ONLY _ABOVE_5V.

Best regards