HardLabs

Lir2450-charger

rbaron·lir2450-charger·kicad/lir2450-charger.kicad_pcb

Lir2450-charger PCB layout, top view — open source board by rbaron

About the Lir2450-charger PCB

Lir2450-charger is an open source PCB design by rbaron, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 40.6 × 28.7 mm, with 12 components from 9 distinct parts.

Other key parts include the MCP73831-2-OT. By type, the board carries 5 resistors, 2 diodes, 2 capacitors, 1 IC and 1 connector.

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

From the project

A tiny USB C charger for LIR2450 coin cell batteries

This repo hosts the KiCad project for the charger, which contains the schematic and printed circuit board layout so you can make your own.

Lir2450-charger, from the project README
From the project README

Main components on the Lir2450-charger

MCP73831-2-OT

Lir2450-charger bill of materials (BOM)

12 components, 9 distinct parts.

QtyPartRefs
1
MCP73831-2-OT
U1
1
USB_C_Plug_USB2.0
P1
1
BS-7
BAT1
1
Red LED
D1
1
Green LED
D2
2
4.7u
C1, C2
1
22k
R1
2
220
R2, R5
2
5.1k
R3, R4

Lir2450-charger design files

The KiCad project lives in the rbaron/lir2450-charger repository on GitHub; these links point at the commit this page was built from.

Lir2450-charger: common questions

How big is the Lir2450-charger PCB?

The Lir2450-charger measures 40.6 × 28.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Lir2450-charger?

12 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Lir2450-charger design files?

From the rbaron/lir2450-charger repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Lir2450-charger design in my own project?

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

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