2 layers43.2 × 47 mm
Current sink or swim
ALeggeUp/current-sink-or-swim
Project work from The Online Electronics Aprenticeship program at Contextual Electronics
29 partsCC-BY-SA-4.0
2 layers41.7 × 51.6 mm
CurrentSinkOrSwim
rmemory/CurrentSinkBuilding a current sink for battery testing
- Size
- 41.7 × 51.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 16
- Pads
- 64
- Tracks, vias
- 118, 7
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 17 Aug 2016
- Updated
- 13 Nov 2016
Overview
CurrentSinkOrSwim is an open-source printed circuit board by rmemory, from the rmemory/CurrentSink repository on GitHub. It is a 2-layer board of 41.7 × 51.6 mm with 22 parts on 16 nets, routed with 118 tracks and 7 vias.
It is built around the LMV358 and LM2931CD. Its parts include 9 resistors, 4 connectors, 3 capacitors, 2 ICs and 1 diode.
Main components
2
LMV358
SOP-8-40℃~+125℃ 10pA 10pA 1MHz 2 2.5V~5.5V 20mA 20nV/√Hz@10kHz 2uV/℃ 40uA 5mV 600V/ms 65dB EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOP-8 Operational Amplifier ROHSTECH PUBLICOperational Amplifier
LM2931CD
SOIC-8-40℃~+125℃ 1 100mA 140uVrms 2.7V~29.5V 400uA 40V 600mV@(100mA) 60dB@(120Hz) Adjustable Positive Reverse connection protection SOIC-8 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSonsemiVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdBuilding a current sink for battery testing
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | C | Capacitors_SMD:C_0805 | C301, C401, C402 |
| 2 | 10k | current:P090L-02F25BR10K | RV201, RV301 |
| 2 | 1k | Resistors_SMD:R_0805 | R202, R303 |
| 2 | CONN_01X02 | current:Terminal_Block_200_mil | P101, P103 |
| 1 | .1 | Resistors_ThroughHole:Resistor_Horizontal_RM15mm | R203 |
| 1 | 0 | Resistors_SMD:R_0805 | R401 |
| 1 | 21.6k | Resistors_SMD:R_0805 | R403 |
| 1 | 27k | Resistors_SMD:R_0805 | R402 |
| 1 | 28.7k | Resistors_SMD:R_0805 | R301 |
| 1 | 68k | Resistors_SMD:R_0805 | R201 |
| 1 | 9k | Resistors_SMD:R_0805 | R302 |
| 1 | BUK9575 | TO_SOT_Packages_THT:TO-220_Neutral123_Vertical | Q201 |
| 1 | CONN_01X01 | current:FA-T220-38E-ND | P201 |
| 1 | CONN_01X03 | Pin_Headers:Pin_Header_Straight_1x03 | P102 |
| 1 | D | Diodes_SMD:SMB-SMC_Universal_Handsoldering | D301 |
| 1 | LM2931 | SMD_Packages:SOIC-8-N | U401 |
| 1 | LMV358 | SMD_Packages:SOIC-8-N | U201 |
Questions
How big is the CurrentSinkOrSwim PCB?
It measures 41.7 × 51.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CurrentSinkOrSwim use?
22 parts, built around the LMV358 and LM2931CD. 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 CurrentSinkOrSwim KiCad files?
From the rmemory/CurrentSink repository on GitHub, at the commit this page was made from: the board is CurrentSinkOrSwim.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CurrentSinkOrSwim design in my own project?
Its repository states no licence, so its author keeps all rights: ask rmemory before reusing the design.
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