4 layers100 × 100 mm
Pdb
javierveras/projectav-telemetry-pdb-2026
Our power distribution and telemetry system's hardware, firmware, and technical documentation.
104 parts
2 layers45 × 45 mm
ESwitch
snalvc/ESwitch2A high-side N-MOSFET electrical switch module
- Size
- 45 × 45 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 13
- Pads
- 67
- Tracks, vias
- 100, 28
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 7 Mar 2024
- Updated
- 14 Mar 2024
Overview
ESwitch is an open-source printed circuit board by snalvc, from the snalvc/ESwitch repository on GitHub, published under the MIT licence. It is a 2-layer board of 45 × 45 mm with 23 parts on 13 nets, routed with 100 tracks and 28 vias.
It is built around the LM5060MM, MSK12C02 and XT90PW-F, with the XT90PW-M.G.Y among its other parts. Its parts include 6 resistors, 4 connectors, 2 capacitors, 1 IC and 1 transistor.
Main components
4
LM5060MM
VSSOP-10-0.5mm-40℃~+125℃ 5.5V~65V Active Low 过压保护、欠压锁定、集成电荷泵、Overcurrent Protection、锁存保护 VSSOP-10-0.5mm Power Distribution Switches ROHSTexas InstrumentsGate Drivers
MSK12C02
SMD,8x2.8mm-20℃~+70℃ 1.4mm 10000 times 12V 2.8mm 50mA 8mm SMD(SMT) Tab SPDT Surface Mount, Right Angle SMD,8x2.8mm Slide Switches ROHSSHOU HANSlide SwitchesXT90PW-F
THrough holeTHroughhole New Arrivals ROHSChangzhou Amass ElecUncategorised
XT90PW-M.G.Y
-0.4mΩ 30A 7.4mm 8/10/12AWG DC 500V Gold Plated PA Plug、- Yellow - Power connector / plug connector ROHSChangzhou Amass ElecPlug
README
readme.mdESwitch
This is a high-side N-channel MOSFET electrical switch module. The power MOSFET (DMTH8003SPS) is driven by a high-side protection controller (LM5060). The schematics and PCB layout are designed in KiCad and available in the kicad directory. All the components are available in LCSC at least at the time of writing. It is also designed for single-sided PCBA with a few exceptions in the high current traces because you'll want them to be reinforced. Plus, I doubt XT90 can be assembled by cheap PCBAs anyway. There are also some Python utilities which are helpful for you to determine the required component values for various protections provided by the LM5060. In short:
- Calculate the required component values for the LM5060 with the help of programs in
utils. - Modify and generate the necessary manufacturing files in
kicad. - Have the PCB manufactured and assembled if you desire.
- Assemble the module with the instructions in
assemble. You can also find the BOM there.
TODO
- Fix XT90 socket and plug polarity
- Add LCSC part numbers into schematics
- Add assemble instructions
- Add test results
Debug Notes
I should have positioned the high-current traces on the bottom layer, allowing for reinforcement by adding solder or copper plates onto them.
Fortunately, by chance, I made a mistake with the XT90 socket and plug. Consequently, I can easily swap the socket and plug, relocating them to the back side of the board, thereby preventing any interference with the high-current traces.
Assembled Module
Not the prettiest welding nor photography, but it works. You get the idea of the bugs that canceled each other out. The XT90s were meant to be on the top side, but the polarity (socket and plug) was wrong. In order to get the polarity (socket, plug) right, the XT90s need to be positioned on the bottom side when swapped, which luckily achieved the desired outcome (leaving top traces for reinforcement).
Notes
2024-03-13: I have a module that has become consistently conductive. Electrostatic discharge (ESD) is suspected as the cause, especially considering it was originally functioning properly.
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | R | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4 |
| 1 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 68nF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 75k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J3 |
| 1 | Conn_01x03_Socket | Connector_PinSocket_2.00mm:PinSocket_1x03_P2.00mm_Vertical | J4 |
| 1 | DMTH8003SPS-13 | Components:PowerDI5060-8 (Type K) | Q1 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP2 |
| 1 | LM5060 | Package_SO:MSOP-10_3x3mm_P0.5mm | U1 |
| 1 | MSK12C02 | LIB_MSK12C02:MSK12C02 | SW1 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1 |
| 1 | XT90PW-F | XT90PW-F:AMASS_XT90PW-F | J1 |
| 1 | XT90PW-M | XT90PW-M:AMASS_XT90PW-M | J2 |
The 17 most common of 23 parts.
Questions
How big is the ESwitch PCB?
It measures 45 × 45 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESwitch use?
23 parts, built around the LM5060MM, MSK12C02, XT90PW-F and XT90PW-M.G.Y. 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 ESwitch KiCad files?
From the snalvc/ESwitch repository on GitHub, at the commit this page was made from: the board is kicad/ESwitch.kicad_pcb and its schematic kicad/ESwitch.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESwitch design in my own project?
Its repository publishes it under the MIT 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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