2 layers37.5 × 10.2 mm
2 layers41.4 × 10.2 mm
Ow2i2c
inaxeon/owdemo2- Size
- 41.4 × 10.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 16
- Pads
- 61
- Tracks, vias
- 163, 17
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 23 Mar 2021
- Updated
- 16 Apr 2021
Overview
Ow2i2c is an open-source printed circuit board by inaxeon, from the inaxeon/owdemo repository on GitHub. It is a 2-layer board of 41.4 × 10.2 mm with 17 parts on 16 nets, routed with 163 tracks and 17 vias.
It is built around the DS28E17Q+ and LP2985-33DBV. Its parts include 6 resistors, 4 capacitors, 3 transistors, 2 ICs and 2 connectors.
Main components
2
DS28E17Q+
TQFN-16-EP(4x4)-40℃~+85℃ 2.45V~3.6V 2.6mA I2C TQFN-16-EP(4x4) Interface - Specialized ROHSMaxim Integrated (Analog Devices)Interface - Specialized
LP2985-33DBV
SOT-23-5-40℃~+125℃@(Tj) 1 150mA 16V 3.3V 30uVrms 45dB@(1kHz) 575mV@(150mA) 850uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Noise bypass terminal Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 2N7002 | TO_SOT_Packages_SMD:SOT-23 | Q1, Q2, Q3 |
| 3 | 4K7 | Resistors_SMD:R_0603 | R2, R3, R4 |
| 2 | 0.1 | Capacitors_SMD:C_0603 | C1, C3 |
| 2 | 2K2 | Resistors_SMD:R_0603 | R5, R6 |
| 1 | 0.01 | Capacitors_SMD:C_0603 | C4 |
| 1 | 1uF | Capacitors_SMD:C_0805 | C2 |
| 1 | BUS | 78208-103HLF:78208-103HLF | J1 |
| 1 | DS28E17 | Housings_DFN_QFN:QFN-16-1EP_4x4mm_Pitch0.65mm | U1 |
| 1 | I2C | 78208-104HLF:78208-104HLF | J2 |
| 1 | LP2985-3.3 | TO_SOT_Packages_SMD:SOT-23-5 | U3 |
| 1 | NF | Resistors_SMD:R_0603 | R1 |
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Questions
How big is the Ow2i2c PCB?
It measures 41.4 × 10.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ow2i2c use?
17 parts, built around the DS28E17Q+ and LP2985-33DBV. 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 Ow2i2c KiCad files?
From the inaxeon/owdemo repository on GitHub, at the commit this page was made from: the board is pcb/ow2i2c/ow2i2c.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ow2i2c design in my own project?
Its repository states no licence, so its author keeps all rights: ask inaxeon before reusing the design.