Phase1-module
About the Phase1-module
Phase1-module is an open source STM32 PCB design by udaravima, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 120 × 80 mm, with 136 components from 82 distinct parts.
Its main chip is the STM32G431CBT6, from the STM32 family. Other key parts include the DAC80502DRXR, OPA2333AIDGKR, LM5145RGYR, INA240A3DR and INA228AIDGSR. By type, the board carries 53 capacitors, 44 resistors, 11 ICs, 9 transistors, 7 diodes and 6 connectors.
It belongs with the power & battery designs in this gallery.
From the project
A modular, rack-style DC power supply: up to 8 hot-pluggable 600 W buck modules on a shared DC input bus, coordinated by a central manager over CAN. Each channel is a self-contained analog CV/CC supply with bench-grade precision, usable for lab work, bulk DC power, and battery ch
A modular, rack-style DC power supply: up to 8 hot-pluggable 600 W buck modules on a shared DC input bus, coordinated by a central manager over CAN. Each channel is a self-contained analog CV/CC supply with bench-grade precision, usable for lab work, bulk DC power, and battery charging.
- Phase 0 — design docs: complete (01–07). - Phase-1 schematic: complete (v1) and machine-verified — 7 generated sheets, 137 components; every net asserted against the intended net table, every footprint pad-checked; vendor symbols/footprints datasheet-vetted. Audited with the kicad-happy analyzers + ngspice…
Main components on the Phase1-module
Phase1-module bill of materials (BOM)
136 components, 82 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | DAC80502DRXR DAC80502DRXT TI | DAC80502_DRX_WSON-10 | U1 |
| 1 | OPA2333AIDGKR OPA2333 TI | VSSOP-8_3.0x3.0mm_P0.65mm | U2 |
| 1 | LM5145RGYR TI | LM5145_RGY0020B | U3 |
| 1 | INA240A3DR INA240A3 TI | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | INA228AIDGSR INA228 TI | VSSOP-10_3x3mm_P0.5mm | U5 |
| 1 | LTC7004EMSE#PBF LTC7004 ADI | MSOP-10-1EP_3x3mm_P0.5mm_EP1.68x1.88mm | U6 |
| 1 | TLV7011DCKR TLV7011 TI | SOT-23-5 | U7 |
| 1 | LMR36015ARNXR LMR36015AQRNXRQ1 TI | LMR36015_RNX_VQFN-HR-12 | U8 |
| 1 | NCP1117ST33T3G NCP1117-3.3 onsemi | SOT-223-3_TabPin2 | U9 |
| 1 | STM32G431CBT6 ST | LQFP-48_7x7mm_P0.5mm | U10 |
| 1 | TCAN1042VDRQ1 TCAN1042HGV TI | SOIC-8_3.9x4.9mm_P1.27mm | U11 |
| 2 | CSD18563Q5A TI | PowerFET_SON5x6_GDS | Q1, Q2 |
| 2 | 60V NFET | PowerFET_SON5x6_GDS | Q3, Q4 |
| 5 | 2N7002 | SOT-23 | Q5, Q6, Q7, Q8, Q9 |
| 1 | 8MHZ 8MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | VBUS IN | TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal | J1 |
| 1 | SWD | PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | UART | PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | OUTPUT | TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal | J4 |
| 1 | BACKPLANE | PinHeader_1x08_P2.54mm_Vertical | J5 |
Show 62 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FAN | PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | 10A blade | Fuse_Blade_Mini_directSolder | F1 |
| 2 | 10K B3950 | R_0603_1608Metric | RT1, RT2 |
| 4 | BAT54W | SOT-323_SC-70 | D1, D2, D3, D4 |
| 1 | SMBJ33A | D_SMB | D5 |
| 1 | 1N4148W | D_SOD-323 | D6 |
| 1 | STATUS | LED_0603_1608Metric | D7 |
| 1 | MWSA1707S-100MT XAL1350-103ME 10u/14A Sunlord | L_Coilcraft_XAL1350-XXX | L1 |
| 1 | 33U/1.2A 33u/1.2A | L_1210_3225Metric | L2 |
| 1 | 10N 10n | C_0603_1608Metric | C1 |
| 1 | 22N 22n | C_0603_1608Metric | C2 |
| 17 | 100N 100n | C_0603_1608Metric | C3, C5, C27, C28, C33, C34, C41, C43 +9 |
| 1 | 150N 150n | C_0603_1608Metric | C4 |
| 1 | DNP | C_0603_1608Metric | C17 |
| 1 | 47N 47n | C_0603_1608Metric | C18 |
| 1 | 15P 15p | C_0603_1608Metric | C19 |
| 4 | 22u/50V X7R | C_1210_3225Metric | C20, C75, C76, C77 |
| 1 | 220U/50V 220u/50V | CP_Elec_10x10.5 | C21 |
| 2 | 220u/25V poly | CP_Elec_8x11.9 | C22, C78 |
| 4 | 22u/25V X7R | C_1210_3225Metric | C23, C79, C80, C81 |
| 1 | 8.2N 8.2n | C_0603_1608Metric | C24 |
| 1 | 120P 120p | C_0603_1608Metric | C25 |
| 1 | 3.3N 3.3n | C_0603_1608Metric | C26 |
| 1 | 2.2U 2.2u | C_0603_1608Metric | C29 |
| 3 | 1n | C_0603_1608Metric | C31, C32, C44 |
| 2 | 1u | C_0603_1608Metric | C42, C53 |
| 2 | 4.7U/50V 4.7u/50V | C_1210_3225Metric | C50, C51 |
| 2 | 22U/16V 22u/16V | C_1210_3225Metric | C54, C55 |
| 1 | 10U/16V 10u/16V | C_1210_3225Metric | C56 |
| 1 | 22U/10V 22u/10V | C_1210_3225Metric | C57 |
| 1 | 4.7U 4.7u | C_0603_1608Metric | C64 |
| 1 | 1u VDDA | C_0603_1608Metric | C65 |
| 2 | 18P 10p | C_0603_1608Metric | C66, C67 |
| 1 | 25.5K 0.1% | R_0603_1608Metric | R1 |
| 1 | 1.0K 0.1% | R_0603_1608Metric | R2 |
| 2 | 10K 0.1% | R_0603_1608Metric | R3, R6 |
| 1 | 33K | R_0603_1608Metric | R4 |
| 2 | 3.9K | R_0603_1608Metric | R5, R8 |
| 1 | 15K | R_0603_1608Metric | R7 |
| 6 | 100K | R_0603_1608Metric | R16, R18, R19, R22, R23, R52 |
| 1 | DNP snub | R_0603_1608Metric | R17 |
| 2 | 100K 1% | R_0603_1608Metric | R20, R50 |
| 1 | 13K 1% | R_0603_1608Metric | R21 |
| 1 | 8.2K | R_0603_1608Metric | R24 |
| 1 | 1.0K | R_0603_1608Metric | R25 |
| 1 | 28.7K 1% | R_0603_1608Metric | R26 |
| 1 | 2.2K 1W preload | R_2512_6332Metric | R27 |
| 1 | 365 1% | R_0603_1608Metric | R28 |
| 1 | 4.7 | R_0603_1608Metric | R29 |
| 1 | C2994640 2m/1W Kelvin | R_2512_6332Metric | R30 |
| 2 | 1K | R_0603_1608Metric | R31, R66 |
| 1 | 69.8K 0.1% | R_0603_1608Metric | R32 |
| 1 | 10.0K 0.1% | R_0603_1608Metric | R33 |
| 3 | 10K | R_0603_1608Metric | R43, R64, R65 |
| 1 | 47K | R_0603_1608Metric | R44 |
| 1 | 158K 1% | R_0603_1608Metric | R45 |
| 1 | 20K 1% | R_0603_1608Metric | R46 |
| 4 | 10K 1% | R_0603_1608Metric | R47, R61, R67, R68 |
| 1 | 31.6K 1% | R_0603_1608Metric | R48 |
| 1 | 24.9K 1% | R_0603_1608Metric | R51 |
| 1 | 200K 1% | R_0603_1608Metric | R60 |
| 2 | 4.7K | R_0603_1608Metric | R62, R63 |
Phase1-module design files
The KiCad project lives in the udaravima/Lab_Bench repository on GitHub; these links point at the commit this page was built from.
Phase1-module: common questions
What microcontroller does the Phase1-module use?
The Phase1-module is built around the STM32G431CBT6, from the STM32 family.
How big is the Phase1-module?
The Phase1-module measures 120 × 80 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Phase1-module?
136 components, from 82 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Phase1-module design files?
From the udaravima/Lab_Bench repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Phase1-module design in my own project?
Yes, under the terms of its GPL-3.0 license, which udaravima chose for the repository.
Can I test firmware for the Phase1-module 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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