PowerDistributionUnit Mk1
About the PowerDistributionUnit Mk1 PCB
PowerDistributionUnit Mk1 is an open source PCB design by lhr-solar, published on GitHub. It is a 4-layer board measuring 80.4 × 206 mm, with 486 components from 41 distinct parts.
Other key parts include the LeaderSOM, LM74502HDDFR, TPS27SA08CQPWPRQ1, 74LVC594AD,118 and MCP23S17-E/SO. By type, the board carries 252 resistors, 131 capacitors, 36 diodes, 31 ICs, 19 fuses and 12 connectors.
From the project
Controls and monitors LV power outputs using programmable high-side switches
Main components on the PowerDistributionUnit Mk1
PowerDistributionUnit Mk1 bill of materials (BOM)
486 components, 41 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LeaderSOM | LeaderSOM_Centered | U1 |
| 1 | LM74502HDDFR | SOT-23-8 | U2 |
| 16 | TPS27SA08CQPWPRQ1 | HTSSOP-16-1EP_4.4x5mm_P0.65mm_EP3.4x5mm_Mask2.66x2.46mm_ThermalVias | U3, U4, U5, U6, U9, U11, U12, U13 +8 |
| 6 | 74LVC594AD,118 | SOIC-16_3.9x9.9mm_P1.27mm | U7, U8, U10, U27, U28, U31 |
| 1 | MCP23S17-E/SO | SOIC-28W_7.5x17.9mm_P1.27mm | U22 |
| 2 | ADS131M08QPBSRQ1 | QFP50P700X700X120-32N | U23, U24 |
| 1 | NL17SZS11DFT2G-Q | SOT-363_SC-70-6 | U25 |
| 1 | TLV9002QDRQ1 | SOIC-8_3.9x4.9mm_P1.27mm | U26 |
| 1 | 74AUP1G04GW-Q100H | SOT-353_SC-70-5 | U29 |
| 1 | NL27WZ17DFT2G-Q | SOT-363_SC-70-6 | U30 |
| 2 | NVMFWS1D7N04XMT1G | NVMFWS1D7N04XMT1G | Q1, Q2 |
| 2 | ABM3-8.000MHZ-D2Y-T | Crystal_SMD_Abracon_ABM3-2Pin_5.0x3.2mm | Y1, Y2 |
| 1 | XT-30 | AMASS_XT30UPB-M_1x02_P5.0mm_Vertical | J1 |
| 1 | Molex_NanoFit_2x8 | CONN_SD-105312-100_16_MOL | J2 |
| 1 | Molex_NanoFit_1x6 | CONN_SD-105309-100_06_MOL | J3 |
| 4 | Molex_NanoFit_1x2 | CONN_SD-105309-100_02_MOL | J4, J5, J8, J9 |
| 1 | Conn_01x01 | SolderWirePad_1x01_SMD_1.5x3mm | J6 |
| 4 | Logic Analyzer | CONN_SFH11-xxxC-D05-ST-XX_SUL | J10, J11, J12, J13 |
| 3 | 3568 | Fuseholder_Blade_Mini_Keystone_3568 | F0, F1, F2 |
| 16 | C1F_8 | Fuse_1206_3216Metric | F3, F4, F5, F6, F7, F8, F9, F10 +8 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | JS202011SCQN | SW_JS202011SCQN | SW1 |
| 17 | SMBJ30CD-M3/I | D_SMB | D1, D2, D3, D4, D5, D6, D7, D8 +9 |
| 19 | EAST1616RGBB4 | Everlight_4-SMD | D18, D19, D20, D21, D22, D23, D24, D25 +11 |
| 36 | 0.1u | C_0603_1608Metric | C1, C4, C7, C10, C14, C18, C22, C28 +28 |
| 3 | 0.22u | C_0603_1608Metric | C2, C76, C79 |
| 1 | 220u | CAPAE1030X1050N | C3 |
| 38 | 1u | C_0603_1608Metric | C5, C6, C8, C12, C16, C20, C24, C25 +30 |
| 16 | 10u | C_0805_2012Metric | C9, C13, C17, C21, C27, C31, C35, C39 +8 |
| 16 | 0.022u | C_0603_1608Metric | C11, C15, C19, C23, C29, C33, C37, C45 +8 |
| 4 | 18p | C_0603_1608Metric | C77, C78, C82, C83 |
| 16 | 4.7n | C_0603_1608Metric | C84, C85, C86, C87, C88, C89, C90, C91 +8 |
| 1 | 0.01u | C_0603_1608Metric | C100 |
| 1 | 205k | R_0603_1608Metric | R1 |
| 112 | 10k | R_0603_1608Metric | R2, R3, R5, R6, R7, R8, R9, R10 +104 |
| 18 | 1k | R_0603_1608Metric | R4, R31, R207, R208, R209, R210, R211, R212 +10 |
| 16 | 392 | R_0603_1608Metric | R16, R28, R40, R52, R64, R76, R88, R100 +8 |
| 4 | 150 | R_0603_1608Metric | R19, R20, R23, R24 |
| 2 | 470 | R_0603_1608Metric | R21, R22 |
| 35 | 0 | R_0603_1608Metric | R32, R33, R34, R35, R36, R43, R44, R45 +27 |
| 32 | 50 | R_0603_1608Metric | R243, R244, R245, R246, R247, R248, R249, R250 +24 |
| 32 | CAY16-1502F4LF | R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4, RN5, RN6, RN7, RN8 +24 |
PowerDistributionUnit Mk1 design files
The KiCad project lives in the lhr-solar/PS-PowerDistributionUnit repository on GitHub; these links point at the commit this page was built from.
PowerDistributionUnit Mk1: common questions
How big is the PowerDistributionUnit Mk1 PCB?
The PowerDistributionUnit Mk1 measures 80.4 × 206 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the PowerDistributionUnit Mk1?
486 components, from 41 distinct parts. The full bill of materials is listed on this page.
Where can I download the PowerDistributionUnit Mk1 design files?
From the lhr-solar/PS-PowerDistributionUnit repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the PowerDistributionUnit Mk1 design in my own project?
The repository has no license, so all rights stay with lhr-solar. Use it as a reference, and ask the author before reusing the design.
