Does STUSB4500 capable of profile 20V 3A or 20V 5A?

[MInde.1]

Hi,

I'm currently designing a USB sink ( kind of electronic load to test a power bank). I will connect to the power bank using type C to type C cable to my tester load. Using a master MCU STM32H7XX, I'm planning to control the PDO selection 5V/3A , 9V/3A etc.. up to 20V/ 5A . The question is can STUSB4500 support up to 20V/5A. Datasheet mentioned 20V 1A as the limit.

I saw a reference design saying we can sink up to 100W , STREF-SCS001V1 ( but not officially released)

Please suggest..

[Winfred LU]

STUSB4500 is capable of supporting both 20V/5A and 20V/3A, as you see in the 100W evaluation kit.

In datasheet, section 3.3.1, it talks about Sink PDO configuration, and in PDO current configuration:

• 15 predefined values are set in the look-up table from 0.5 A to 5 A

[Gregory Go.]

The Datasheet mentions that the PDO3 is factory configured at 20V/1A by default.

But your can reprogram the NVM memory to have PDO3 = 20V/5A (100W)

The STUSB4500 can negotiate any power profile from 7.5W (5V/1.5A) to 100W (20V/5A)

Note that the Power path (VBUS) doesn't go through the STUSB4500 itselft, but through an optional external MOSFET. So you need to select the Mosfet according to the max power of your application.

[MInde.1]

Thank you so much. @Gregory Go.​  @Winfred LU​ . I have ordered STREF-SCS001V1 and STEVAL-ISC005V1 to validate. There seems to be a chip shortage overall.