4 layers203.8 × 99.1 mm
ISOpower complete bothboards
practable/iso-power-pcb
Remote power control board for ISO experiment containers, used for remote labs projects
196 partsGPL-3.0
4 layers119.4 × 99.1 mm
ISOpower
practable/iso-power-pcbRemote power control board for ISO experiment containers, used for remote labs projects
- Size
- 119.4 × 99.1 mm
- Copper layers
- 4
- Thickness
- 4.69 mm
- Parts
- 130
- Nets
- 117
- Pads
- 441
- Tracks, vias
- 1,170, 251
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 24 Jan 2022
- Updated
- 25 Jul 2025
Overview
ISOpower is an open-source printed circuit board by practable, from the practable/iso-power-pcb repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 119.4 × 99.1 mm with 130 parts on 117 nets, routed with 1,170 tracks and 251 vias.
It is built around the CH340C, LM2596S-5.0 and BC817, with the IRF5305PBF, SI2319CDS and BZV55B18 among its other parts. Its parts include 26 resistors, 22 connectors, 20 capacitors, 18 transistors and 7 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
7
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
LM2596S-5.0
TO-263-5-40℃~+125℃@(TJ) 1 150kHz 3A 4.5V~40V 5V 5mA Buck Buck Built-in Fixed No TO-263-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
IRF5305PBF
TO-220AB-55℃~+175℃ 1 P-Channel 1.2nF 110W 31A 4V 55V 60mΩ@10V 63nC@10V P-Channel TO-220AB MOSFETs ROHSInfineon TechnologiesMOSFETsSI2319CDS
SOT-23-55℃~+150℃ 1 P-Channel 108mΩ@4.5V 2.5V 2.5W 21nC@10V 4.4A 40V 595pF 61pF 76pF P-Channel SOT-23 MOSFETs ROHSVishay IntertechnologyMOSFETs
BZV55B18
-Zener DiodesTaiwan Semiconductor
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
README.mdISOpowerProject
Remote power control board for ISO experiment containers, used for remote labs projects
Use
Programming [See Issues]
To Program AtMega328pb use the following settings:
prog_power_select
- Jumper is used for power routing during programming
- Cut trace to main and solder USB to center to enable USB power during programming.
- Ensure to remove USB side and replace main for normal use
Issues V1.0
- Tx & Rx Pin swapped on CH340 - aTmeGA328P
- To enable USB communication, reverse pins 2 & 3
Parts
130| Qty | Value | Footprint | References |
|---|---|---|---|
| 21 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R35, R36 +5 |
| 10 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18 |
| 8 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C11, C12, C15, C16, C22, C23, C24 |
| 6 | IRF5305_PBF | Package_TO_SOT_SMD:TO-263-2 | Q1, Q4, Q5, Q6, Q7, Q8 |
| 5 | USB_CH_A | Connector_USB:USB_A_Molex_67643_Horizontal | J9, J10, J11, J12, J13 |
| 5 | XT30_connector_DC_30A_female | Connector_AMASS:AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | J14, J15, J16, J17, J18 |
| 3 | 100u | Capacitor_SMD:CP_Elec_6.3x7.7 | C9, C10, C21 |
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H7, H8, H9 |
| 3 | Net_Tie | NetTie:NetTie-2_SMD_Pad0.5mm | N3, N5, N7 |
| 2 | 1n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C17, C18 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7, C8 |
| 2 | 22u | Capacitor_SMD:CP_Elec_6.3x5.4 | C13, C14 |
| 2 | 330r | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R4 |
| 2 | ACS712xLCTR-30A | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U6, U7 |
| 2 | Si2319CDS | Package_TO_SOT_SMD:SOT-23 | Q2, Q3 |
| 2 | i6A4W020A-DC-DC-250W | ISOpower:i6A4W-DIP | U4, U5 |
| 1 | 10uH | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | L1 |
| 1 | 12V_BUS | TestPoint:TestPoint_Pad_D1.5mm | TP4 |
| 1 | 12vTerminal | TerminalBlock:TerminalBlock_Altech_AK300-2_P5.00mm | J22 |
| 1 | 16MHz | Crystal:Crystal_SMD_Abracon_ABM3C-4Pin_5.0x3.2mm | Y1 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8 |
| 1 | 1N5821 | Diode_SMD:D_SMA | D3 |
| 1 | 20A | Fuse:Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F1 |
| 1 | 220u | Capacitor_SMD:CP_Elec_6.3x7.7 | C20 |
| 1 | 24V_BUS | TestPoint:TestPoint_Pad_D1.5mm | TP2 |
| 1 | 24vTerminal | TerminalBlock:TerminalBlock_Altech_AK300-2_P5.00mm | J21 |
| 1 | 2x2_ISOpower_mountingHoles | MountingHole:ISOpower_4xmounting_M3 | H11 |
| 1 | 33uH | Inductor_SMD:L_12x12mm_H8mm | L2 |
| 1 | 3V3_BUS | TestPoint:TestPoint_Pad_D1.5mm | TP3 |
| 1 | 3V3_spare | Connector_PinHeader_1.27mm:PinHeader_1x01_P1.27mm_Vertical | J30 |
| 1 | 4n7 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C25 |
| 1 | 5V_BUS | TestPoint:TestPoint_Pad_D1.5mm | TP5 |
| 1 | 5V_BUS_TRIM | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | 5vTerminal | TerminalBlock:TerminalBlock_Altech_AK300-2_P5.00mm | J23 |
| 1 | 680u | Capacitor_THT:C_Radial_D12.5mm_H20.0mm_P5.00mm | C19 |
| 1 | ATmega3278PB-M | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm | U1 |
| 1 | AVR-ISP-6 | 000_Connectors_Immo:AVR-ISP-header-02x03 | J8 |
| 1 | AtMega_Reset | TestPoint:TestPoint_Pad_D1.5mm | TP6 |
| 1 | BUS_A_trim | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7 |
| 1 | BZV55B18 | Diode_SMD:D_MiniMELF_Handsoldering | D1 |
| 1 | Blue | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | CH340C | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U8 |
| 1 | CH340_UD+ | TestPoint:TestPoint_Pad_D1.5mm | TP8 |
| 1 | CH340_UD- | TestPoint:TestPoint_Pad_D1.5mm | TP7 |
| 1 | DSBL_BYPSS_A | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | DSBL_BYPSS_B | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | Fan_IEC60617 | ISOpower:Fan12V_40by10.5mm | M1 |
| 1 | GND | TestPoint:TestPoint_Pad_D1.5mm | TP1 |
| 1 | LM2596S-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U10 |
| 1 | LOGO | 000_Graphics_Immo:practactable.io_text_20x8 | G*** |
| 1 | LOGO | 000_Graphics_Immo:practactable.io_text_30x11_SM | G*** |
| 1 | Net_Tie | NetTie:NetTie-8-15A_1oz_2oz | N6 |
| 1 | OP_0 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4 |
| 1 | OP_1 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP5 |
| 1 | OP_2 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP6 |
| 1 | OP_3 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP7 |
| 1 | OP_4 | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP8 |
| 1 | PRTR5V0U2X | Package_TO_SOT_SMD:SOT-143 | D4 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_EVQPE1 | SW1 |
| 1 | USB_5v | Connector_PinHeader_1.27mm:PinHeader_1x01_P1.27mm_Vertical | J26 |
| 1 | USB_B_Mini | Connector_USB:USB_Mini-B_Lumberg_2486_01_Horizontal | J31 |
| 1 | XT60_connector_DC_60A_male | Connector_AMASS:AMASS_XT60PW-M | J1 |
| 1 | adc_spare | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | J25 |
| 1 | dio_spare | Connector_PinHeader_1.27mm:PinHeader_1x01_P1.27mm_Vertical | J24 |
| 1 | prog_power_select | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP1 |
| 1 | prog_power_select | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Vertical | J6 |
| 1 | pwr_tie | NetTie:NetTie-8-15A_1oz_2oz_chamf | N11 |
| 1 | wifi_header | Connector_PinSocket_1.27mm:PinSocket_1x10_P1.27mm_Vertical | J29 |
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Questions
How big is the ISOpower PCB?
It measures 119.4 × 99.1 mm and has 4 copper layers, 4.69 mm thick.
What parts does the ISOpower use?
130 parts, built around the CH340C, LM2596S-5.0, BC817 and IRF5305PBF. 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 ISOpower KiCad files?
From the practable/iso-power-pcb repository on GitHub, at the commit this page was made from: the board is ISOpowerPCB_V2.0/ISOpower.kicad_pcb and its schematic Backup/ISOpower_complete_bothboards/5to12_logic.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ISOpower design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).