4 layers25.4 × 20 mm
SMD0603 i2c 16mA
iorodeo/i_control_led
Hardware files for IO Rodeo's current controlled led for the open colorimeter
27 parts3CC-BY-4.0
4 layers25.4 × 20 mm
520nm i2c 16mA
iorodeo/i_control_led3Hardware files for IO Rodeo's current controlled led for the open colorimeter
- Size
- 25.4 × 20 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 15
- Pads
- 82
- Tracks, vias
- 189, 21
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Sep 2023
- Updated
- 2 Nov 2026
Overview
520nm i2c 16mA is an open-source printed circuit board by iorodeo, from the iorodeo/i_control_led repository on GitHub, published under the CC-BY-4.0 licence. It is a 4-layer board of 25.4 × 20 mm with 32 parts on 15 nets, routed with 189 tracks and 21 vias.
It is built around the LMV321, TPS61222DCK and BSS138, with the MMBT5551L among its other parts. Its parts include 9 resistors, 8 capacitors, 3 ICs, 3 transistors and 2 connectors.
Main components
4
LMV321
SOT-23-5L-2.75V~-1.25V、1.25V~2.75V 0℃~+70℃ 1 10pA 10pA 1MHz 2.1V~5.5V 20mA 20nV/√Hz@10kHz 520V/ms 60uA 70dB 800uV Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5L Operational Amplifier ROHSJiangsu Changjing Electronics Technology (CJ)Operational Amplifier
TPS61222DCK
SC-70-6(SOT-363)-40℃~+125℃@(TJ) 1 200mA 5V 700mV~5.5V Boost Boost Built-in Fixed Yes SC-70-6(SOT-363) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsMMBT5551L
SOT-23-55℃~+150℃ 1 NPN 100nA 160V 250mV 300mW 600mA 6V 80 NPN SOT-23 Bipolar (BJT) ROHSonsemiBipolar (BJT)
README
README.mdIO Rodeo i_control_led
Hardware files for IO Rodeo's current controlled led designed to be used with our cuvette holder.
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R4, R5, R6, R7, R8 |
| 5 | 10uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C4, C5, C6 |
| 4 | MountingHole_2.5mm_Pad | custom_mount_hole:MountingHole_2.5mm_Pad | M1, M2, M3, M4 |
| 2 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q2, Q3 |
| 2 | Conn_01x04 | JST_SH_SM04B_custom:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1, J2 |
| 1 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | 1nF | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 27k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 4.7uH | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | 5.1k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 50 | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LMV321 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | MCP4725xxx-xCH | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | MMBT5551L | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
| 1 | TPS61222DCK | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U1 |
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Questions
How big is the 520nm i2c 16mA PCB?
It measures 25.4 × 20 mm and has 4 copper layers, 1.6 mm thick.
What parts does the 520nm i2c 16mA use?
32 parts, built around the LMV321, TPS61222DCK, BSS138 and MMBT5551L. 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 520nm i2c 16mA KiCad files?
From the iorodeo/i_control_led repository on GitHub, at the commit this page was made from: the board is i2c/5V_regulator/520nm_i2c_16mA/520nm_i2c_16mA.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 520nm i2c 16mA design in my own project?
Its repository publishes it under the CC-BY-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).