4 layers205.5 × 152 mm
2 layers70 × 114.3 mm
Placa expansion
cdrfiuba/dostauUn 3pi seguidor de lineas
- Size
- 70 × 114.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 42
- Pads
- 107
- Tracks, vias
- 314, 27
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 2 Apr 2016
- Updated
- 2 Apr 2016
Overview
Placa expansion is an open-source printed circuit board by cdrfiuba, from the cdrfiuba/dostau repository on GitHub. It is a 2-layer board of 70 × 114.3 mm with 24 parts on 42 nets, routed with 314 tracks and 27 vias.
It is built around the PTN78020HAH and TXB0108PW. Its parts include 9 connectors, 2 capacitors, 2 resistors, 1 IC and 1 diode.
Main components
2PTN78020HAH
DIP,38.1x22.1mm-40℃~+85℃ 1 11.85V~22V 15V~36V 330uF 550kHz 6A 96% Buck Overheat protection、Over Current Protection、Under Voltage Protection ±2% DIP,38.1x22.1mm DC-DC Power Modules ROHSTexas InstrumentsDC-DC Power Modules
TXB0108PW
TSSOP-20-40℃~+85℃ 1 1.2V~3.6V 1.65V~5.5V 100Mbps 8 Automatic direction detection、Power-off protection、Output enable high-impedance Bidirectional Level translator Tri-State TSSOP-20 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | P*** | 1pin | 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN |
| 4 | CONN_4 | PIN_ARRAY_4x1 | P5, P6, P7, P8 |
| 1 | 2.2uF | C1 | C1 |
| 1 | 21k | R4 | R1 |
| 1 | 330 | R4 | R2 |
| 1 | 330uF | C1V5 | C2 |
| 1 | BATT | molex_2_recto | P1 |
| 1 | CONN_3PI | pin_array_7x2 | P2 |
| 1 | JUMPER | PIN_ARRAY_2X1 | JP1 |
| 1 | LED | LED-3MM | D1 |
| 1 | LOGO | LOGO | G*** |
| 1 | PBD-26 | pin_array_13x2 | J1 |
| 1 | PTN78020 | PTN78020WAS | U1 |
| 1 | PWR_3pi | PIN_ARRAY_2X1 | P4 |
| 1 | PWR_HUB | molex_2_recto | P3 |
| 1 | TXB0108 | Test | U?1 |
Questions
How big is the Placa expansion PCB?
It measures 70 × 114.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Placa expansion use?
24 parts, built around the PTN78020HAH and TXB0108PW. 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 Placa expansion KiCad files?
From the cdrfiuba/dostau repository on GitHub, at the commit this page was made from: the board is placa-expansion/placa-expansion.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Placa expansion design in my own project?
Its repository states no licence, so its author keeps all rights: ask cdrfiuba before reusing the design.
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