4 layers70 × 72 mm
2 layers57.4 × 55.1 mm
Driverboard
cocktailmixer/electronicsCustom electronics for the cocktailmixer bot
- Size
- 57.4 × 55.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 26
- Pads
- 115
- Tracks, vias
- 219, 37
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 23 Mar 2019
- Updated
- 16 Oct 2019
Overview
Driverboard is an open-source printed circuit board by cocktailmixer, from the cocktailmixer/electronics repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 57.4 × 55.1 mm with 31 parts on 26 nets, routed with 219 tracks and 37 vias.
It is built around the 74LVC1G34Z and MBRA340. Its parts include 12 connectors, 5 resistors, 4 capacitors, 3 diodes and 2 ICs.
Main components
2
74LVC1G34Z
SOT-553-5-40℃~+125℃ 1 1 1.65V~5.5V 1.6ns@5V,50pF 10uA 32mA 32mA 74LVC Power-off isolation Push-pull Unidirectional SOT-553-5 Buffers, Drivers, Receivers, Transceivers ROHSDiodes IncorporatedBuffers, Drivers, Receivers, Transceivers
MBRA340
SMA(DO-214AC)-55℃~+150℃ 1 Independent 100A 300uA@40V 3A 40V 450mV@3A SMA(DO-214AC) Schottky Diodes ROHSonsemiSchottky Diodes
README
driverboard/README.mdDriverboard
What is the status?
- design v01: complete
- schematic v01: complete
- layout rev. A: complete
- gerbers and bom: todo
- testing: todo
What does it do?
The driverboard is connected by a ribbon cable and a seperate power cable to the controllerboard. Each driverboard can drive eight resistive or inductive loads like pumps or valves up to 600mA per channel. Multiple driverboards can be connected in series after another, the power and data gets passed along to the next driverboard.
The controllerboard is an SPI bus master and passes data to the driverboards which are connected in series as an SPI bus daisy-chain. The end of the chain is automatically recognized by the hardware and the fault reporting data looped back to the master.
The driver chip used is the ON Semi NCV7240 which features fault reporting (overload and overtemperature protection, open load / short to ground and SPI frame error detection), internal output clamping diodes and a 3.3V / 5V compatible SPI interface.
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole_2.7mm_M2.5 | MountingHole:MountingHole_2.7mm_M2.5 | MH1, MH2, MH3, MH4 |
| 3 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C3 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R3 |
| 2 | 2k0 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R4 |
| 1 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C4 |
| 1 | 12V input | Connector_Molex:Molex_Micro-Fit_3.0_43650-0200_1x02_P3.00mm_Horizontal | J11 |
| 1 | 12V output | Connector_Molex:Molex_Micro-Fit_3.0_43650-0200_1x02_P3.00mm_Horizontal | J12 |
| 1 | 560 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5 |
| 1 | 74LVC1G34 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U1 |
| 1 | MBRA340 | Diode_SMD:D_SMA | D3 |
| 1 | NCV7240ADPR2G | NCV7240:SOP65P600X175-24N | IC1 |
| 1 | SPI input | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J9 |
| 1 | SPI output | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J10 |
| 1 | control | LED_SMD:LED_0805_2012Metric_Castellated | D2 |
| 1 | output-1 | Connector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | J1 |
| 1 | output-2 | Connector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | J2 |
| 1 | output-3 | Connector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | J3 |
| 1 | output-4 | Connector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | J4 |
| 1 | output-5 | Connector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | J5 |
| 1 | output-6 | Connector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | J6 |
| 1 | output-7 | Connector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | J7 |
| 1 | output-8 | Connector_JST:JST_PH_B2B-PH-SM4-TB_1x02-1MP_P2.00mm_Vertical | J8 |
| 1 | power | LED_SMD:LED_0805_2012Metric_Castellated | D1 |
The 30 most common of 31 parts.
Questions
How big is the Driverboard PCB?
It measures 57.4 × 55.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Driverboard use?
31 parts, built around the 74LVC1G34Z and MBRA340. 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 Driverboard KiCad files?
From the cocktailmixer/electronics repository on GitHub, at the commit this page was made from: the board is driverboard/driverboard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Driverboard 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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