STUSB4710: Default Configuration Confirmation

[KMew]

Hello,

I apologize if the answer is obvious but I want to confirm my understanding for the STUSB4710 (USB-C PD controller). Section 4.1 of the datasheet mentions that the default values for the voltage and current settings, which require NO I2C programming. I can optionally choose to overwrite these values via an I2C interface if I want.

 

So if I use the 7.1. configuration, this means that, with no additional MCU, EEPROM or any other NVM, I can achieve:

5V, 3A (15W)

9V, 3A (27W)

12V, 3A (36W)

15V, 3A (40W)

20V, 2.25A (45W)

Is this logic correct?

[Benoit FORET · Accepted solution]

Hi KMew,

your understanding is correct. This is the default configuration that is set in ST plant, ready to use for compatible 45W applications.

Rgds,

Benoit

[KMew]

Hello Benoit,

Thank you for the confirmation!

I am using the buck design that is used in the datasheet to get that 45W application. This is strictly for power and we are doing NO data transmission. I am also doing no communication with an NVM or MCU, since I only want to use the default configuration. If that's the case, can I leave these two pins (SCL & SDA) floating? Is there anything else that has to change on this if I am just doing default power delivery?

[Benoit FORET]

Hi KMew,

so in this case, you can connect these pins to GND indeed.

Benoit