STWBC2-HP and STWLC99: output only reaches 0.8A - expecting 5A

[Fengji]

I am using STWBC2-HP and STWLC99 for development. The output voltage at the receiver end is set to 10V, and the current limit at the transmitter end is set to 5A. However, the actual current at the transmitter end can only reach a maximum of 0.8A, and I do not know why.

[Fengji]

00234252

[Didier HERROUIN]

Hello,

I was able to find out the case 00234252, but as I am part of EMEA region, the request should be supported by my Asia-Pacific region colleagues.

[Fengji]

So how can I get help?

[Didier HERROUIN]

Your case is opened in ST database, so a colleague of mine should take your point (you have nothing else to do).

By the way, you can start checking the STWBC2-HP input power supply (STWBC2-HP eval kit is supposed to be supplied by a USB-C charger): if you set the Rx Vout to 10V, the STWBC2-HP should adapt its input voltage to higher voltage (9V or 12V most probably). This input voltage is displayed by the GUI.