HardLabs

TP4056-Power-Path

DoImant·TP4056-Power-Path-PCB

TP4056-Power-Path PCB layout, top view — open source board by DoImant

About the TP4056-Power-Path PCB

TP4056-Power-Path is an open source PCB design by DoImant, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 17.4 × 12.6 mm, with 8 components from 4 distinct parts.

By type, the board carries 5 connectors, 1 transistor, 1 diode and 1 resistor.

It belongs with the power & battery designs in this gallery.

From the project

TP4056 Power Sharing PCB. Charge battery despite connected load.

A "bypass" consisting of an additional current path with a diode and a p-channel mosfet can help here. It is a controlled switch that disconnects the battery when an external power supply (e.g. solar cell) is connected.

The idea is that the P-channel FET will disconnect the battery from the load when a power source is connected to the charging chip. The TP4056 still charges the battery, but with no load. The load is directly from the power source powered. With a solar cell, the battery is disconnected when sufficient solar energy is available. If it generates more electricity than the load…

TP4056-Power-Path, from the project README
From the project README

TP4056-Power-Path bill of materials (BOM)

8 components, 4 distinct parts.

QtyPartRefs
1
IRLML6402
Q1
5
Conn_01x01
J1, J2, J3, J4, J5
1
PMEG4010CEJ
D1
1
10k
R1

TP4056-Power-Path design files

The KiCad project lives in the DoImant/TP4056-Power-Path-PCB repository on GitHub; these links point at the commit this page was built from.

TP4056-Power-Path: common questions

How big is the TP4056-Power-Path PCB?

The TP4056-Power-Path measures 17.4 × 12.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TP4056-Power-Path?

8 components, from 4 distinct parts. The full bill of materials is listed on this page.

Where can I download the TP4056-Power-Path design files?

From the DoImant/TP4056-Power-Path-PCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the TP4056-Power-Path design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which DoImant chose for the repository.

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