WLC38 - compatible chargers

[mohimm]

Hi,

We are developing a product using the WLC38 as RX.
It works OK in combination with wbc2tx50 board, and a single Spigen QI charger we found (no overheating, constant power > 10W achievable).

However using any other charging pads (either Qi1 15W or Qi2..) either doesn't communicate to the EPP mode (stays in BPP) or is working for ~10 seconds, but after that shuts down (seems like they try to communicate higher OP frequency, which causes wlc38 to overheat, or trigger some other protection...)

Question:

Can anybody recommend any changes in configuration of WLC38 to support more charging pads? Allow EPP mode, and allow continous operation?

Are there any known and available chargers that are tested, and work ok with WLC38 in EPP up to 15W?

Looking through the forum @willzhou is there a pin compatbile replacement or another chip that enables QI2.0 MPP or some other way of ensuring stable power delivery? (sorry for directly mentioning you, but it seems you cover most of the answers regarding this chips)

Thanks in advance!

[willzhou]

Hi
1.Default wlc38 fw is for BPP mode, and need special fw to work at EPP mode
2.For QI2.0 MPP ST have new device, RX work at 15W MPP, Please share below information and I can contract marketing to support.
1.Target Volume, Estimated annual production volume for the device?
2.Which distributor does your company plan to buy device?
3.What is your address, how can FAE contact you?
4.What is the application?

You can click my picture and send me message.