Phase2-module
About the Phase2-module
Phase2-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 130 × 90 mm, with 172 components from 87 distinct parts.
Its main chip is the STM32G431CBT6, from the STM32 family. Other key parts include the DAC80502DRXR, OPA2333AIDGKR, LM5143QRHARQ1, INA240A3DR and INA228AIDGSR. By type, the board carries 69 capacitors, 55 resistors, 14 transistors, 13 ICs, 8 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 Phase2-module
Phase2-module bill of materials (BOM)
172 components, 87 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 | LM5143QRHARQ1 LM5143RHAR TI | LM5143_RHA0040P | 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 TLV7011DCK TI | SOT-353_SC-70-5 | 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 |
| 1 | LM5069MM-2/NOPB LM5069MM-2 TI | VSSOP-10_3x3mm_P0.5mm | U12 |
| 1 | TS5A3166DBVR TS5A3166 TI | SOT-23-5 | U13 |
| 8 | CSD18540Q5B TI | PowerFET_SON5x6_GDS | Q1, Q2, Q3, Q4, Q10, Q11, Q12, Q13 |
| 5 | 2N7002 | SOT-23 | Q5, Q6, Q7, Q8, Q9 |
| 1 | CSD19536KTT TI | TO-263-2 | Q14 |
| 1 | 8MHZ 8MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | XT60PW-M XT60PW-M SLOT PWR Amass | XT60PW-M | J1 |
| 1 | SWD | PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | UART | PinHeader_1x03_P2.54mm_Vertical | J3 |
Show 67 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | XT60PW-M XT60PW-M OUTPUT Amass | XT60PW-M | J4 |
| 1 | SLOT SIGNALS | PinHeader_1x08_P2.54mm_Vertical | J5 |
| 1 | FAN | PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | C3207132 35A blade | Fuse_Blade_ATO_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 | TL431BIDBZR TL431B 2.495V TI | SOT-23 | D8 |
| 2 | MWSA1707S-6R8MT 6.8u MWSA1707S/XAL1510 Sunlord | L_1707_XAL1510 | L1, L3 |
| 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 |
| 21 | 100N 100n | C_0603_1608Metric | C3, C5, C27, C28, C33, C34, C35, C39 +13 |
| 1 | 150N 150n | C_0603_1608Metric | C4 |
| 14 | GCM32EC71H106KA03L 10u/50V X7S Murata | C_1210_3225Metric | C6, C7, C8, C9, C10, C11, C12, C13 +6 |
| 1 | 470U/50V 470u/50V | CP_Radial_D10.0mm_P5.00mm | C14 |
| 4 | C2923769 220u/35V hybrid Lelon | CP_Elec_10x10.5 | C15, C16, C36, C37 |
| 2 | 47N 47n | C_0603_1608Metric | C18, C20 |
| 1 | 470N 470n | C_0603_1608Metric | C19 |
| 4 | 1u | C_0603_1608Metric | C21, C30, C42, C53 |
| 2 | 2.2U 2.2u | C_0603_1608Metric | C22, C23 |
| 1 | 27N 27n | C_0603_1608Metric | C24 |
| 1 | 2.2N 2.2n | C_0603_1608Metric | C25 |
| 3 | 1n | C_0603_1608Metric | C31, C32, C44 |
| 2 | DNP | C_0603_1608Metric | C49, C58 |
| 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 18p | C_0603_1608Metric | C66, C67 |
| 1 | 46.4K 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 | 5.6K | R_0603_1608Metric | R5, R8 |
| 1 | 15K | R_0603_1608Metric | R7 |
| 9 | 100K | R_0603_1608Metric | R16, R18, R19, R20, R22, R23, R38, R52 +1 |
| 1 | 2.2K | R_0603_1608Metric | R24 |
| 1 | 63.4K 1% | R_0603_1608Metric | R26 |
| 1 | 4.7K 0.5W preload | R_2512_6332Metric | R27 |
| 1 | 4.7 | R_0603_1608Metric | R29 |
| 2 | C46634444 1m0 3W Kelvin | R_2512_6332Metric | R30, R34 |
| 2 | 1K | R_0603_1608Metric | R31, R66 |
| 1 | 110K 0.1% | R_0603_1608Metric | R32 |
| 1 | 10.0K 0.1% | R_0603_1608Metric | R33 |
| 1 | 267K 1% | R_0603_1608Metric | R35 |
| 4 | C49837985 7m5 1W | R_1206_3216Metric | R36, R37, R42, R57 |
| 1 | DNP 0R | R_0603_1608Metric | R39 |
| 2 | DNP snub | R_0603_1608Metric | R40, R41 |
| 3 | 10K | R_0603_1608Metric | R43, R64, R65 |
| 1 | 47K | R_0603_1608Metric | R44 |
| 1 | 215K 0.1% | R_0603_1608Metric | R45 |
| 1 | 20.0K 0.1% | R_0603_1608Metric | R46 |
| 4 | 10K 1% | R_0603_1608Metric | R47, R61, R67, R68 |
| 1 | 100K 1% | R_0603_1608Metric | R50 |
| 1 | 24.9K 1% | R_0603_1608Metric | R51 |
| 1 | 200K 1% | R_0603_1608Metric | R60 |
| 2 | 4.7K | R_0603_1608Metric | R62, R63 |
| 1 | C49837991 1m5 3W Kelvin | R_2512_6332Metric | R70 |
| 1 | 47.5K 1% | R_0603_1608Metric | R71 |
| 1 | 12.1K 1% | R_0603_1608Metric | R72 |
| 1 | 4.87K 1% | R_0603_1608Metric | R73 |
| 1 | 15.0K 1% | R_0603_1608Metric | R74 |
Phase2-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.
Phase2-module: common questions
What microcontroller does the Phase2-module use?
The Phase2-module is built around the STM32G431CBT6, from the STM32 family.
How big is the Phase2-module?
The Phase2-module measures 130 × 90 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Phase2-module?
172 components, from 87 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 Phase2-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 Phase2-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 Phase2-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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