Precharge 2027
About the Precharge 2027 PCB
Precharge 2027 is an open source STM32 PCB design by SCFormulaElectric, published on GitHub. It is a 4-layer board measuring 96.6 × 40.7 mm, with 77 components from 35 distinct parts.
Its main chip is the STM32C011F6P6, from the STM32 family. Other key parts include the H11L1, LM331N, MIC5239-3.3YS, NCS3S1212SC and UA78M33QDCYRQ1. By type, the board carries 33 resistors, 17 capacitors, 8 ICs, 4 transistors, 4 diodes and 1 crystal.
From the project
- Update README.md file in each directory with the appropriate changes made - On schematics, please use boxes to section of parts of the circuit and use text boxes to describe functionality
Main components on the Precharge 2027
Precharge 2027 bill of materials (BOM)
77 components, 35 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | H11L1 | SOP-6_L8.5-W6.4-P2.54-LS9.2-BL | U1, U4 |
| 2 | LM331N | DIP-8_L9.8-W6.6-P2.54-LS7.6-BL | U2, U5 |
| 1 | MIC5239-3.3YS MICROCHIP(美国微芯) | SOT-223-3_L6.7-W3.7-P2.30-LS7.0-BR | U3 |
| 1 | NCS3S1212SC | NCS3S1205SC_MUR | U6 |
| 1 | STM32C011F6P6 | TSSOP-20_4.4x6.5mm_P0.65mm | U7 |
| 1 | UA78M33QDCYRQ1 NCS3S1212SC | NCS3S1205SC_MUR | U8 |
| 2 | XR6005 XNRUSEMI(新锐) | SOT-23-3_L2.9-W1.3-P0.95-LS2.4-BR | Q1, Q2 |
| 1 | DMP510DL-7 DIODES(美台) | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q3 |
| 1 | FDN5618P onsemi(安森美) | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q5 |
| 1 | X50328MSB2GI Yangxing Tech | OSCCC500X320X135 | X1 |
| 2 | C1608C0G1H103JT000N | C0603 | CT1, CT2 |
| 1 | C6165188 BORN SMD1206-050/30N | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F7 |
| 2 | RT0603BRD07100KL 100k YAGEO | R0603 | RL1, RL2 |
| 2 | RT0603BRD0717K8L 17.8k YAGEO | R0603 | RS1, RS2 |
| 2 | 0603WAF6801T5E | R0603 | RT1, RT2 |
| 1 | BZT52C15 BZT52C15_C2104 CJ(江苏长电/长晶) | SOD-123_L2.8-W1.8-LS3.7-RD | ZD6 |
| 2 | SMAJ30CA SMAJ30CA_C10755 RUILON(瑞隆源) | SMA_L4.4-W2.6-LS5.0-BI | D1, D2 |
| 2 | MMBZ33VALT1G onsemi(安森美) | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | D4, D5 |
| 4 | GRM21BR61H106KE43L 10uF muRata(村田) | C0805 | C1, C2, C12, C13 |
| 2 | CC1206JKNPO9BN104 100nF C0G YAGEO | C1206 | C3, C4 |
Show 15 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | 100NF 100nF | C0603 | C5, C7, C9, C11, C16, C17 |
| 2 | 20PF 20pF Samsung Electro-Mechanics | C_0603_1608Metric | C6, C8 |
| 1 | 4.7UF 4.7uF | C0603 | C10 |
| 2 | 10UF 10uF | C1206 | C14, C15 |
| 8 | RT1206BRD071ML 1.00M YAGEO | R1206 | R1, R2, R3, R4, R7, R8, R9, R10 |
| 7 | 10K 10k | R0603 | R5, R15, R20, R23, R26, R31, R32 |
| 2 | RT0603BRD0780K6L 80.6k YAGEO | R0603 | R6, R11 |
| 2 | 4.7K 4.7k | R0603 | R12, R13 |
| 1 | 47K 10k | R0603 | R14 |
| 2 | RT0603BRD0721KL 21.0k YAGEO | R0603 | R16, R21 |
| 3 | 47 | R0603 | R17, R22, R27 |
| 2 | 0805W8F1002T5E 10k UNI-ROYAL(厚声) | R0805 | R18, R30 |
| 2 | 0805W8F3302T5E 33k UNI-ROYAL(厚声) | R0805 | R19, R29 |
| 2 | 1k | R0603 | R24, R25 |
| 2 | 0603WAF4700T5E UNI-ROYAL(厚声) | R0603 | R28, R33 |
Precharge 2027 design files
The KiCad project lives in the SCFormulaElectric/USC-Electrical-Systems repository on GitHub; these links point at the commit this page was built from.
Precharge 2027: common questions
What microcontroller does the Precharge 2027 use?
The Precharge 2027 is built around the STM32C011F6P6, from the STM32 family.
How big is the Precharge 2027 PCB?
The Precharge 2027 measures 96.6 × 40.7 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Precharge 2027?
77 components, from 35 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 Precharge 2027 design files?
From the SCFormulaElectric/USC-Electrical-Systems 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 Precharge 2027 design in my own project?
The repository has no license, so all rights stay with SCFormulaElectric. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Precharge 2027 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.
More boards in USC-Electrical-Systems
STM32Custom BMS
104.2 × 59.7 mm192 parts4LNo license6
STM32Enepaq TempSensor Board
68.9 × 129.2 mm157 parts4LNo license6
STM32ETS Board Copy
68.9 × 129.2 mm157 parts4LNo license6
STM322026Precharge
96.6 × 40.7 mm72 parts4LNo license6
STM32RelayBoard
53.5 × 71.2 mm70 parts2LNo license6
STM32LoRA board
61.2 × 38.9 mm52 parts4LNo license6
STM32UpdatedPrecharge
96.8 × 40.6 mm51 parts2LNo license6
NXPDashbox
84.5 × 85.5 mm27 parts2LNo license6
STM32Roll Hoop Board
106.7 × 36 mm26 parts2LNo license6
STM32BSPD 5
40.1 × 54.3 mm24 parts2LNo license6
CellTapFuses V3
54.7 × 35.4 mm16 parts2LNo license6
Similar boards
STM32AxxSolder
AxxAxx
39 × 82.5 mm122 parts2LGPL-3.01.7k
STM32AIOC
skuep
21 × 31.5 mm47 parts2LMIT1.4k
STM32Ferris
pierrechevalier83
208.8 × 86.8 mm102 parts2LSHL-2.11.3k
STM32Module 16S
stuartpittaway
71.1 × 89.6 mm113 parts4LCC-BY-NC-4.01.1k
STM32Djinn
tzarc
192.3 × 150.5 mm216 parts2LCERN-OHL-S-2.0988
STM32Ghoul
228.6 × 79.4 mm163 parts2LCERN-OHL-S-2.0988