Identify IC - Battery Package Control

[delgadoBR]

Hello everybody!

I have a battery package with BMS PCB.

The circuit I can identify the how works. Have a battery protection and voltage/current control. But have a IC I cannot find in the web. Please, everyone can find the manufacturer or datasheet?

Have one call 7900A with logo.

And another call XM4056. I think is similar with famous 4056, like TP4056 but the circuit is not the same..

Thanks!

[mariush]

Maybe Si7900A from Vishay : https://www.vishay.com/docs/72287/si7900aedn.pdf
Dual n-channel mosfet ic.

As for xm4056 .. maybe it's 4056 made by other company, maybe with different pinout.

There's cl4056 for example : https://datasheet.lcsc.com/szlcsc/ChipLink-Tech-CL4056_C181916.pdf