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IP5306 module

Overview

This is
a small gadget built using the IP5306_CK. It can directly charge a single 3.7V~4.2V lithium battery using 5V USB power, or output 5V 2A. Both input and output use USB-C ports (I recently got a bunch of USB-C ports from LCSC, which is ridiculously abundant).
Parameters
: Input: 5V 1.8A;
Charging current: 2.1A;
Charging cutoff voltage: 4.2V;
Output: 5V 2.4A.
Other functions: Lighting, power display (4-LED solution). A few notes : The output USB-C port
works fine when plugged into an external 5V USB power source; at least it didn't burn out. Connecting the output USB-C port to the input USB-C port via a C2C cable didn't burn out either, but it doesn't work properly (it's possible the lithium battery I'm using has too high internal resistance, acting as a protection mechanism). I used the DW03D solution instead of the DW01+ dual MMOS solution simply because I was lazy and didn't want too many chips.

Design Files

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