I'd like to add an LED indicator to the FLT pin so it sinks current when it becomes active low. The LED anaode would be tide high with a resistor in series. The spec sheet says this pin has a resistance of 250Ohms when active. How much current can t...
We want to develop a USB-C charger and we need to check the battery charge percentage of the device connected to the USB-C charger. The connected to de USB-C device can be a Smartphone, Tablet or PC.In our charger we are going to integrate a processo...
Hello.1- We want to add USB Power Delivery to an existing converter which can deliver 2x 5.1 V/3A from an unique power stage (isolated converter with one transformer, one regulator IC, etc.).The PD-controller has to meet the following requirements:-N...
Hi everyone,I am looking the way to disable charge and enable charge for external device wihin STUSB1602. I guest the register TYPE_C_CTRL 0x11 may help but don't know how to the way to do.Does someone try that? Please help. Thanks in advance.
I'm building a sink only type PD device using a SAMD21G18A and the stusb1602, because the stusb4500 was not available so we changed our design. I have i2c communication with the device, and can read/write to the NVM (although I'm not sure I have the ...
Hi together,the VCONN voltage at STEVAL-USBPD27S is generated with a LDO. https://www.st.com/content/st_com/en/products/evaluation-tools/solution-evaluation-tools/psu-and-converter-solution-eval-boards/steval-usbpd27s.html#overviewUSB power delivery ...
We have an application we would like to power via USB PD. The device needs 12V or more to fully operate. To do a firmware upgrade 5V is sufficient. But the 5V are on a different Rail, normally supplied from the 12V Rail via DCDC converter. So we need...
In the video, it appears that the boards cycle automatically through the different PDO's (first the LED at the 9V PDO lights up, then the LED at the 15V PDO and so on. Is this default?Let's say that I connect an electric razor to the 15V PDO at the s...
Hello everyone,I have a question about the application schematic in page 24 of the datasheet STUSB4500.I don't understand the utility of D4/C4/R1 and R4, why not use only one resistance between VBUS en VBUS_VS_Disch to discharge the bus ?Best Regard'...