EEZ DIB DCP405plus
eez-open·dib-dcp405plus·KiCad/EEZ DIB DCP405plus.kicad_pcb
About the EEZ DIB DCP405plus PCB
EEZ DIB DCP405plus is an open source STM32 PCB design by eez-open, published on GitHub under the TAPR-OHL-1.0 license. It is a 4-layer board measuring 180 × 103.5 mm, with 361 components from 123 distinct parts.
Its main chip is the STM32H503CBT6, from the STM32 family. Other key parts include the ADS131A04IPBSR, ISO6762FDWR, ISO6520DR, M24C32-DFDW6TP and DAC8552IDGKR. By type, the board carries 135 resistors, 120 capacitors, 27 ICs, 27 transistors, 23 diodes and 6 inductors.
It belongs with the sensors designs in this gallery.
From the project
BB3+ Programmable 1-ch power module
The EEZ DIB DCP405+ Power module is an improved version of the DCP405 module that now includes an on-board 32-bit MCU, a more accurate and faster A/D converter for simultaneous voltage and current measurement (and thus more accurate power measurement). This version features remote current programming in addition to the existing remote voltage programming. Sense inputs are also on 4 mm safety sockets, which now enables usage of widely available (e.g. AliExpress, eBay, etc.) and affordable Kelvin cable sets (Power/Sense) usually used with LCR meters (see below)

Main components on the EEZ DIB DCP405plus
EEZ DIB DCP405plus bill of materials (BOM)
361 components, 123 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADS131A04IPBSR | QFP50P700X700X120-32N | IC1 |
| 2 | ISO6762FDWR | DW16 | IC2, IC3 |
| 1 | ISO6520DR | SOIC127P600X173-8N | IC4 |
| 1 | STM32H503CBT6 | LQFP-48_7X7MM | IC5 |
| 1 | M24C32-DFDW6TP | TSSOP-8 | IC6 |
| 1 | DAC8552IDGKR | DGK8-M | IC7 |
| 1 | 74AUP1G74DC,125 | DCU8 | IC8 |
| 1 | TMP126NDCKR | DCK6 | IC9 |
| 1 | REF5025AIDR | SOIC127P600X173-8N | IC10 |
| 1 | PCAL9722HNMP | HVQFN32_SOT617-1_NXP-M | IC11 |
| 1 | LM5145RGYR | RGY0020B | IC12 |
| 1 | LTC2050HVCS8#PBF | SOIC127P600X173-8N | IC13 |
| 2 | TL072D | SOIC127P600X173-8N | IC14, IC15 |
| 3 | SN74LVC1G3157DCKR | SOT65P210X110-6N | IC16, IC20, IC21 |
| 1 | SN74LVC2G08DCTR | DCT8 | IC17 |
| 2 | LM293D | SOIC127P600X173-8N | IC18, IC22 |
| 1 | OPA376AIDBVR | SOT23-5L_STM | IC19 |
| 1 | MAX9141ESA | SOIC127P600X173-8N | IC23 |
| 1 | TPS54060DGQ | SOP50P490X110-11N | IC24 |
| 1 | MC79L05 | SOIC127P600X173-8N | IC25 |
Show 103 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MC78L05 | SOIC127P600X173-8N | IC26 |
| 1 | TPS7A2033PDBVR | SOT23-5L_STM | IC27 |
| 1 | BSS84 | SOT103P240X110-3N | Q1 |
| 1 | BSC117N08NS5ATMA1 | TDSON-8 | Q2 |
| 1 | BSC039N06NSATMA1 | TDSON-8 | Q3 |
| 4 | MMBT5401 | SOT23-BEC | Q5, Q8, Q9, Q21 |
| 6 | MMBT5551 | SOT23-BEC | Q7, Q11, Q18, Q19, Q20, Q26 |
| 2 | BCP56-16.115 | SOT223-BCE | Q10, Q13 |
| 1 | IRFP250NPBF | TO247-3_SUNKEN | Q12 |
| 1 | BC857C | SOT23-BEC | Q14 |
| 1 | IRFI9Z34GPBF | TO220FP-V | Q15 |
| 2 | PSMN0R9-25YLC | TDSON-8 | Q16, Q17 |
| 4 | 2N7002 | SOT103P240X110-3N | Q22, Q23, Q24, Q25 |
| 1 | FMMT493TA | SOT23-BEC | Q27 |
| 1 | BT139B-600E | TO-263_SOT-404 | Q28 |
| 1 | PSMN013-60YL | SOT669 | Q29 |
| 1 | PCB Edge connector | DIB 2.0 edge card connector | X1 |
| 1 | B4PS-VH (LF)(SN) | B4PS-VH | X3 |
| 1 | TBP03R1-350-03BE | TBP03R1-350-03BE | X4 |
| 1 | ZL263-20DG | SSW-110-02-T-D-RA | X5 |
| 1 | ECS-163.84-10-33-JGN-TR | XTAL_403C11A24M00000 | Y1 |
| 1 | 572-0500 | 572-0500 | J1 |
| 1 | 572-0100 | 572-0100 | J2 |
| 1 | ZH32 | ZH32 | F1 |
| 1 | FTR-C1GA012G-B05 or EE2-12NU-L | FTR-C1 | K1 |
| 1 | SK96/84SA | SK96_84 | KK5 |
| 2 | PCB-MB-01 | PCB-MB-01 | KK9, KK10 |
| 1 | SRF0703-821M | SRF0703 | TR2 |
| 1 | CDSOT23-SLVU2.8 | SOT23-3 | ZD1 |
| 2 | P6SMB68A | DO214AA | ZD2, ZD7 |
| 1 | BZX384-C15 | SOD-323_1P8X1P35_ONS-M | ZD4 |
| 1 | BZT52C6V2 | SOD123 | ZD5 |
| 1 | SLVU2.8.TCT | SOT23-3 | ZD6 |
| 1 | MMSZ5230BT1G | SOD123 | ZD8 |
| 1 | WP42WUM/EGW | L-42WUM-1EGWT | LED2 |
| 1 | SSF-LXH340LYGID | SSF-LXH340LYGID | LED3 |
| 1 | WP934MD/LYLID | WP934MD_2YD | LED4 |
| 17 | BAS316 | SOD-323_1P8X1P35_ONS-M | D1, D2, D3, D4, D6, D7, D8, D9 +9 |
| 5 | SKL16 | SOD123 | D5, D20, D21, D22, D23 |
| 1 | SK55 | DO214AA | D15 |
| 3 | BLM18AG102SH1D | BEAD0603 | FB1, FB2, FB3 |
| 1 | RN112-4-02-0M7 | RN112 | L1 |
| 1 | ETQ-P4M100KFM | PANASONIC_ETQ-P4_KFM | L2 |
| 1 | HPI0630-3R3 | COILCRAFT_HPI0630 | L3 |
| 6 | 1n | C_0603_1608Metric | C1, C2, C3, C4, C32, C59 |
| 14 | 1u | C_0805_2012Metric | C5, C7, C8, C10, C16, C28, C31, C36 +6 |
| 40 | 100n | C_0603_1608Metric | C6, C9, C11, C12, C13, C15, C19, C20 +32 |
| 1 | 270n | C_0603_1608Metric | C14 |
| 2 | 10p | C_0603_1608Metric | C17, C18 |
| 2 | 2u2 | C_0603_1608Metric | C24, C26 |
| 5 | 4u7 | C_0805_2012Metric | C34, C44, C119, C121, C122 |
| 2 | 22u | C_1210_3225Metric | C40, C120 |
| 5 | 10n/200V | C_1206_3216Metric | C46, C48, C50, C105, C106 |
| 3 | 470n/100V | C_0805_2012Metric | C47, C60, C103 |
| 3 | 2u2 | C_1206_3216Metric | C49, C112, C113 |
| 9 | 10n | C_0805_2012Metric | C51, C54, C69, C71, C80, C101, C102, C114 +1 |
| 1 | 15p | C_0603_1608Metric | C53 |
| 2 | 150p | C_0805_2012Metric | C55, C87 |
| 4 | 4u7/100V | C_1210_3225Metric | C56, C57, C58, C75 |
| 2 | EEEFK1H470P | CAPAE830X1050N | C61, C67 |
| 3 | 10u | C_1210_3225Metric | C62, C63, C64 |
| 1 | EEEFK1J101P | CAPAE1030X1050N | C65 |
| 1 | 470p | C_0805_2012Metric | C66 |
| 1 | 6n8 | C_0805_2012Metric | C81 |
| 3 | 4n7 | C_0805_2012Metric | C82, C109, C111 |
| 3 | 100p | C_0805_2012Metric | C83, C99, C100 |
| 3 | 2n2 | C_0805_2012Metric | C84, C85, C96 |
| 2 | 330p | C_0805_2012Metric | C86, C118 |
| 1 | 33u/50V poly. | CAPAE830X1050N | C104 |
| 1 | 33p | C_0805_2012Metric | C117 |
| 9 | 100R | R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8 +1 |
| 7 | 10R | R_0805_2012Metric | R9, R21, R33, R42, R147, R148, R151 |
| 28 | 10K | R_0805_2012Metric | R10, R14, R15, R18, R24, R25, R29, R32 +20 |
| 3 | 1K8 | R_0805_2012Metric | R11, R13, R19 |
| 5 | 100K | R_0805_2012Metric | R17, R23, R39, R118, R136 |
| 5 | 330R | R_0805_2012Metric | R20, R103, R104, R116, R129 |
| 2 | 1R | R_0805_2012Metric | R22, R115 |
| 9 | 47K | R_0805_2012Metric | R30, R50, R63, R90, R91, R93, R97, R98 +1 |
| 3 | 470R | R_0805_2012Metric | R31, R48, R54 |
| 3 | 3K9 | R_0805_2012Metric | R34, R120, R121 |
| 1 | 15R | R_2010_5025Metric | R38 |
| 13 | 1K | R_0805_2012Metric | R41, R49, R55, R56, R60, R101, R107, R112 +5 |
| 1 | 1K2 | R_0805_2012Metric | R43 |
| 5 | 220R | R_0805_2012Metric | R44, R45, R57, R86, R117 |
| 2 | 51K | R_0805_2012Metric | R46, R149 |
| 8 | 2K2 | R_0805_2012Metric | R51, R59, R64, R65, R66, R67, R106, R143 |
| 1 | 16K | R_0805_2012Metric | R52 |
| 5 | 750R | R_0805_2012Metric | R53, R102, R105, R124, R125 |
| 1 | 6K8 | R_0805_2012Metric | R61 |
| 1 | 3K | R_0603_1608Metric | R62 |
| 3 | 6K2 | R_0805_2012Metric | R68, R122, R123 |
| 1 | 2R2/2-3W | R_2512_6332Metric | R71 |
| 2 | 7K5 0.1% | R_0805_2012Metric | R72, R75 |
| 2 | 36K 0.1% | R_0805_2012Metric | R73, R74 |
| 2 | 750R 0.1% | R_0805_2012Metric | R76, R77 |
| 2 | 100K 0.1% | R_0805_2012Metric | R79, R80 |
| 1 | 1R 0.1% | R_1206_3216Metric | R82 |
| 2 | 24K 0.1% | R_0805_2012Metric | R84, R85 |
| 1 | 0R010 | R_2512-4WIRE | R88 |
| 4 | 4K7 | R_0805_2012Metric | R113, R114, R132, R150 |
| 1 | 6R2 | R_0805_2012Metric | R139 |
| 1 | 330K | R_0805_2012Metric | R145 |
| 1 | 86K6 | R_0805_2012Metric | R146 |
EEZ DIB DCP405plus design files
The KiCad project lives in the eez-open/dib-dcp405plus repository on GitHub; these links point at the commit this page was built from.
EEZ DIB DCP405plus: common questions
What microcontroller does the EEZ DIB DCP405plus use?
The EEZ DIB DCP405plus is built around the STM32H503CBT6, from the STM32 family.
How big is the EEZ DIB DCP405plus PCB?
The EEZ DIB DCP405plus measures 180 × 103.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the EEZ DIB DCP405plus?
361 components, from 123 distinct parts. The full bill of materials is listed on this page.
Where can I download the EEZ DIB DCP405plus design files?
From the eez-open/dib-dcp405plus repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EEZ DIB DCP405plus design in my own project?
Yes, under the terms of its TAPR-OHL-1.0 license, which eez-open chose for the repository.
Can I test firmware for the EEZ DIB DCP405plus without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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