Here is my schematic of battery charger module based on TP4056 chip. Could you please check the schematic for errors (Before I mill the pcb)?
You are allowing for load-sharing without any extra circuitry for it. The TP4056 does not allow for load-sharing.
That is all good as long as you are not intending to actually do so. So as long as there isn't a device powered by the battery during charging that is fine. Otherwise a switch between USB+ & B+ is required.
If you charge while there is a load, the TP4056 can not determine correctly when to stop charging, and that potentially can cause the battery to explode.
You have set prog to 1A (R13 is 1.2K) that would mean that a 1000mAH battery will be charged in an hour (C1) and a 500mAH battery within half an hour (C2) but any battery smaller than that will be charged to fast and may overheat and or explode.
My circuit looks ver similar, though i use the 6-pin version of the FS8205 and an FS312 instead of the DW01
Well this is just the schematic, the PCB layout is a different matter.
The two mosfet drains need to be connected together.
What will the battery be powering? How much current will it draw?
Oh yes, i missed that !!
They aren't shown as being connected to anything.
Best practice is to first create a prototype using the components that you plan to use, Test if it works as expected, and then continue with the design.
To avoid load sharing, I will use a switch. The battery is charged only when the microcontroller is disconnected from the network. I am going to charge a 18650 battery. I bought a TP4065 board and want to move the components to one board. I found many circuit options on the Internet and if it is correct I will mill the PCB to test the board.
That's what i do
From the datasheet for a 2600mAH battery the standard charge is 0.52A and the fast charge is 1.3A With the 1A setting that you have now (prog at 1.2K) you will be somewhere in between, i guess that's ok, but standard charge current would be better i'd say for the longevity of the battery.
Looked fine except for the dual mosfet not being looped through to each other.
How can I achieve that, which pins should be connected? Connect pin 1 and 8?
Looks simple. I will try that also, thanks
Yep that's it.