BMS 1
About the BMS 1 PCB
BMS 1 is an open source STM32 PCB design by lbrosnan1, published on GitHub. It is a 2-layer board measuring 105.2 × 55.3 mm, with 110 components from 47 distinct parts.
Its main chip is the STM32G0B1RETx, from the STM32 family. Other key parts include the PBQ76942PFBT, TLV70430DBVR, ATA6561-GAQW-N and TPS62175DQCR. By type, the board carries 46 resistors, 25 capacitors, 10 diodes, 8 transistors, 7 connectors and 5 ICs.
It belongs with the power & battery designs in this gallery.
From the project
Stores the KiCAD PCB files for Qubo
Guys I have no idea what I'm doing here so if you have any suggestions lmk -Liam
1) Only commit changes to the card you are meant to be working on 2) leave helpful commit messages 3) you don't need to follow the naming scheme because I'm pretty sure we can just see the date the latest change was 4) Put cool silkscreen on your boards
Main components on the BMS 1
BMS 1 bill of materials (BOM)
110 components, 47 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PBQ76942PFBT | PFB0048A_L | U1 |
| 1 | TLV70430DBVR | DBV0005A_L | U2 |
| 1 | STM32G0B1RETx | LQFP-64_10x10mm_P0.5mm | U5 |
| 1 | ATA6561-GAQW-N | SOIC8_4P9X3P9MC_MCH | U6 |
| 1 | TPS62175DQCR | WSON-10-1EP_2x3mm_P0.5mm_EP0.84x2.4mm_ThermalVias | U7 |
| 2 | CSD17327Q5A | TDSON-8-1 | Q2, Q3 |
| 6 | NMOS | SOT-23_Handsoldering | Q4, Q5, Q9, Q10, Q11, Q12 |
| 2 | Conn_01x03_Pin | PinHeader_1x03_P2.54mm_Vertical | J1, J9 |
| 1 | Conn_01x02 | AMASS_XT30UPB-M_1x02_P5.0mm_Vertical | J3 |
| 1 | Conn_01x02 | AMASS_XT30UPB-F_1x02_P5.0mm_Vertical | J4 |
| 1 | Conn_01x07 | JST_XH_S7B-XH-A-1_1x07_P2.50mm_Horizontal | J5 |
| 1 | Conn_01x02 | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J6 |
| 1 | Conn_01x03 | slide_switch_EGER1218_Thruster | J8 |
| 1 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | BOOT_R1 |
| 1 | 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | Bulk_1 |
| 1 | 4.7uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | Bulk_4.7 |
| 1 | 22uF | C_0603_1608Metric | Bulk_22 |
| 2 | Thermistor_NTC_US | THRMC1608X95N | TH1, TH2 |
| 1 | 100nF | C_0603_1608Metric | T_Cd1 |
| 1 | 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | T_Cd2 |
Show 27 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | BAV16W | D_SOD-523 | D1, D6, D10, D11, D12, D13 |
| 1 | BAV16W | D_SOD-123 | D2 |
| 2 | 16V MMSZ5246B-7-F | D_SOD-123 | D3, D5 |
| 1 | 100V | D_SOD-123 | D4 |
| 1 | 10uH | L_Coilcraft_XxL4040 | L2 |
| 3 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6, C7 |
| 8 | 0.22uF | C_0603_1608Metric | C14, C16, C28, C29, C35, C36, C37, C38 |
| 1 | 0.47uF | C_0603_1608Metric | C15 |
| 1 | 2.2uF | C_1206_3216Metric | C17 |
| 2 | 100pF | C_0603_1608Metric | C18, C21 |
| 5 | 0.1uF | C_0603_1608Metric | C20, C23, C24, C25, C26 |
| 1 | 2.2uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C22 |
| 1 | 2.2uF | C_0402_1005Metric | C32 |
| 1 | 22uF | C_0402_1005Metric | C33 |
| 1 | 0.1uF | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C42 |
| 1 | 1uF | C_0603_1608Metric | C43 |
| 2 | 0.004 | R_2512_6332Metric | R8, R9 |
| 15 | 100 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11, R12, R13, R29, R33, R35, R37, R61 +7 |
| 2 | 4.7k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R14, R15 |
| 1 | 5.1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16 |
| 2 | 10M | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R17, R21 |
| 7 | 5.1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R18, R19, R20, R22, R23, R24, R25 |
| 2 | 1K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R26, R27 |
| 7 | 10K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R30, R34, R36, R63, R65, R73, R75 |
| 1 | 3.5K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R31 |
| 1 | 2M | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R32 |
| 6 | 25 | R_1206_3216Metric | R47, R49, R57, R58, R67, R68 |
BMS 1 design files
The KiCad project lives in the lbrosnan1/quboElectrical repository on GitHub; these links point at the commit this page was built from.
BMS 1: common questions
What microcontroller does the BMS 1 use?
The BMS 1 is built around the STM32G0B1RETx, from the STM32 family.
How big is the BMS 1 PCB?
The BMS 1 measures 105.2 × 55.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the BMS 1?
110 components, from 47 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 BMS 1 design files?
From the lbrosnan1/quboElectrical 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 BMS 1 design in my own project?
The repository has no license, so all rights stay with lbrosnan1. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the BMS 1 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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