HardLabs

Portable Charger

jacksterb1234·Portable_Charger·USBC_PD_Trigger_Kicad/V2/USBC_PD_Trigger_Kicad_V2.kicad_pcb

Portable Charger PCB layout, top view — open source AVR/Arduino board by jacksterb1234

About the Portable Charger PCB

Portable Charger is an open source AVR/Arduino PCB design by jacksterb1234, published on GitHub. It is a 2-layer board measuring 38.6 × 31.8 mm, with 38 components from 22 distinct parts.

Its main chip is the ATTINY816-S, from the AVR/Arduino family. Other key parts include the FUSB302BMPX, HT7533 and LS2406ERQ23. By type, the board carries 13 capacitors, 12 resistors, 4 ICs, 4 diodes, 3 connectors and 1 switch.

It belongs with the power & battery designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

A custom portable USB-C Power Delivery (PD) charger with a dedicated PD trigger circuit for negotiating output voltage. Powered from a single USB-C input and designed for compact, portable use.

A custom portable USB-C Power Delivery (PD) charger with a dedicated PD trigger circuit for negotiating output voltage. Powered from a single USB-C input and designed for compact, portable use.

- USB-C Power Delivery input with PD voltage negotiation trigger - Custom PD trigger circuit to request a specific voltage from the source - Compact KiCad PCB design optimized for portability - Designed with JLCPCB assembly constraints in mind - CAD enclosure files included

Main components on the Portable Charger

FUSB302BMPXHT7533LS2406ERQ23ATTINY816-S

Portable Charger bill of materials (BOM)

38 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
FUSB302BMPX
U1
1
HT7533
Holtek Semicon
U2
1
LS2406ERQ23
U3
1
ATTINY816-S
ATtiny816-S
U4
1
USB_C_RECEPTACLE_POWERONLY_6P
USB_C_Receptacle_PowerOnly_6P
J1
1
SCREW_TERMINAL_01X02
Screw_Terminal_01x02
J2
1
CONN_01X03_PIN
Conn_01x03_Pin
J3
1
4.7kΩ
UNI-ROYAL(Uniroyal Elec)
RPA0
1
C720477
Tactile Button, 160gf
XUNPU
S1
4
LED
D5, D6, D7, D8
3
100NF
100nF
Samsung Electro-Mechanics
C1, C5, C8
3
10UF
10uF
Samsung Electro-Mechanics
C2, C12, C13
1
22UF
22uF
Samsung Electro-Mechanics
C3
2
1UF
1uF
Samsung Electro-Mechanics
C4, C10
2
470PF
470pF
FH(Guangdong Fenghua Advanced Tech)
C6, C7
1
10NF
10nF
Samsung Electro-Mechanics
C9
1
4.7UF
4.7uF
Samsung Electro-Mechanics
C11
3
4.7kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R2, R3
3
10kΩ
UNI-ROYAL(Uniroyal Elec)
R6, R8, R10
1
8.2kΩ
UNI-ROYAL(Uniroyal Elec)
R7
Show 2 more
QtyPartRefs
1
200kΩ
UNI-ROYAL(Uniroyal Elec)
R9
4
300Ω
UNI-ROYAL(Uniroyal Elec)
R11, R12, R13, R14

Portable Charger design files

The KiCad project lives in the jacksterb1234/Portable_Charger repository on GitHub; these links point at the commit this page was built from.

Portable Charger: common questions

What microcontroller does the Portable Charger use?

The Portable Charger is built around the ATTINY816-S, from the AVR/Arduino family.

How big is the Portable Charger PCB?

The Portable Charger measures 38.6 × 31.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Portable Charger?

38 components, from 22 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Portable Charger design files?

From the jacksterb1234/Portable_Charger repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Portable Charger design in my own project?

The repository has no license, so all rights stay with jacksterb1234. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Portable Charger without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

Earlier revisions in the repo: USBC_PD_Trigger_Kicad

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