2 layers23 × 35 mm
Lipo charger
bablokb/pcb-lipo-charger
A small LiPo Charger using the MCP73831 and the XB6166IS
20 parts3CC-BY-SA-4.0
2 layers53.1 × 61.5 mm
Pico app base
bablokb/pcb-pico-app-baseGeneric application base PCB for the Raspberry Pi Pico(W)
- Size
- 53.1 × 61.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 52
- Pads
- 272
- Tracks, vias
- 379, 68
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 16 May 2024
- Updated
- 9 Aug 2024
Overview
Pico app base is an open-source printed circuit board by bablokb, from the bablokb/pcb-pico-app-base repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 53.1 × 61.5 mm with 41 parts on 52 nets, routed with 379 tracks and 68 vias.
It is built around the SN74HC74N, MAX17048G+T10 and PCF8563T/5, with the XB6166IS and AO3401A among its other parts. Its parts include 10 resistors, 8 capacitors, 7 ICs, 5 connectors and 3 switches. It belongs with the RP2040 boards of this library.
Main components
5
SN74HC74N
DIP-14-40℃~+85℃ 0ns 1 2 21ns 2V~6V 30ns@6V,50pF 3pF 4uA 5.2mA 5.2mA 60MHz 74HC Series Complementary D-Type Rising Edge Set and Reset DIP-14 Flip Flops ROHSTexas InstrumentsFlip Flops
MAX17048G+T10
DFN-8-EP(2x2)-40℃~+85℃ 1 2.5V~4.5V 3uA I2C Lithium Battery Not supported Not supported DFN-8-EP(2x2) Battery Management ROHSMaxim Integrated (Analog Devices)Battery Management
PCF8563T/5
SO-8-40℃~+85℃ 0.25uA 1V~5.5V Battery low-voltage detection、Programmable clock output、Alarm function、Countdown timer I2C Yes SO-8 Real Time Clocks ROHSNXP SemiconductorsReal Time Clocks
XB6166IS
DFN-6-EP(2x2)-40℃~+85℃ 1 100nA 2.8V Lithium Battery Not supported Protection IC Support 过充保护、过放保护、Overcurrent Protection、Short-Circuit Protection DFN-6-EP(2x2) Battery Management ROHSXySemiBattery Management
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
README
README.mdGeneric application base PCB for the Raspberry Pi Pico(W)
This is work in progress
A generic application base PCB for the Pi Pico(W) and compatible development boards.
Core features:
- RTC (PCF8563)
- integrated power-management with
- near zero power-off current
- time-based wake up via RTC-alarm
- wake up via interrupt (e.g. with a button)
- JST-PH2 LiPo connector
- LiPo charging
- battery fuel-gauge
- I2C connectors (Stemma/Qt and Grove)
- EYESPI connector
- integrated XTSD-chip for data-storage
- additional THT for all GPIOs
- multiple 3V3+GND connectors
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C6, C7, C8 |
| 5 | 10K | Resistor_SMD:R_0402_1005Metric | R2, R3, R4, R10, R11 |
| 3 | MountingHole | MountingHole:MountingHole_2.5mm | H2, H3, H4 |
| 2 | 100K | Resistor_SMD:R_0402_1005Metric | R1, R9 |
| 2 | 10µF | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 1K | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 22pF | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | 330Ω | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 3KΩ | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 74LVC2G74 | Package_SO:TSSOP-8_3x3mm_P0.65mm | U2 |
| 1 | Alt Bat | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | Conn_EYESPI | user:G-Shell-FPC_1x18_P0.50mm_Horizontal | J1 |
| 1 | Crystal | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | Grove | user:grove_vertical | J3 |
| 1 | JST-PH2 Bat | Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J7 |
| 1 | LED_RED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | MAX17048G | user:MAX17048G | U7 |
| 1 | MCP73831-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | PCF8563T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | Pico | user:RPi_Pico_SMD_TH_extended | U6 |
| 1 | SW_Enable | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP3 |
| 1 | SW_ON | user:SW_PUSH_1x_6mm | SW1 |
| 1 | SW_ON | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | SW2 |
| 1 | SW_RST | user:SW_PUSH_1x_6mm | SW3 |
| 1 | Stemma-QT_Qwicc | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J5 |
| 1 | XB6166IS | user:DFN-2x2mm-0.75 | U4 |
| 1 | XTSD | user:LGA8_8X6 | U5 |
Questions
How big is the Pico app base PCB?
It measures 53.1 × 61.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pico app base use?
41 parts, built around the SN74HC74N, MAX17048G+T10, PCF8563T/5 and XB6166IS. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Pico app base KiCad files?
From the bablokb/pcb-pico-app-base repository on GitHub, at the commit this page was made from: the board is pico-app-base.kicad/pico-app-base.kicad_pcb and its schematic pico-app-base.kicad/lipo_charger.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pico app base design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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