Power board
About the Power board
Power board is an open source STM32 PCB design by tudsat-rocket, published on GitHub. It is a 4-layer board measuring 78 × 95 mm, with 142 components from 57 distinct parts.
Its main chip is the STM32F105RCTX, from the STM32 family. Other key parts include the AZ1117I-3.3, TPD4E1U06, MCP2562-E-SN, L7805 and BQ25798RQMR. By type, the board carries 55 capacitors, 38 resistors, 13 diodes, 9 ICs, 9 connectors and 3 fuses.
It belongs with the power & battery designs in this gallery.
From the project
The battery boards for the Rapid rockets
- 3x 3000 mA h Sony VTC6 18650 lithium-ion cells in series
Main components on the Power board
Power board bill of materials (BOM)
142 components, 57 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AZ1117I-3.3 Diodes Incorporated | SOT-223-3_TabPin2 | U1 |
| 1 | TPD4E1U06 | SOT-563 | U2 |
| 1 | MCP2562-E-SN Microchip Technology | SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | L7805 STMicroelectronics | TO-252-2 | U4 |
| 1 | STM32F105RCTX STM32F105RCTx | LQFP-64_10x10mm_P0.5mm | U5 |
| 1 | BQ25798RQMR | IC_BQ25798RQMR | U6 |
| 1 | BQ7791500PWR | TSSOP-24_4.4x7.8mm_P0.65mm | U7 |
| 1 | INA181A1 | SOT-23-6 | U8 |
| 1 | MCP6001-OT | SOT-23-5 | U9 |
| 1 | C2149245 8MHz 12pF JYJE | Crystal_SMD_5032-4Pin_5.0x3.2mm | Y1 |
| 5 | Molex MicroFit 2x2 | Molex_Micro-Fit_3.0_43045-0400_2x02_P3.00mm_Horizontal | J1, J2, J3, J6, J7 |
| 2 | Conn_02x04_Top_Bottom | Molex_Micro-Fit_3.0_43045-0800_2x04_P3.00mm_Horizontal | J4, J5 |
| 1 | TC2050 | Tag-Connect_TC2050-IDC-FP_2x05_P1.27mm_Vertical | J8 |
| 1 | SWD Header | PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left | J9 |
| 3 | Battery_Cell | BAT_1043 | BAT1, BAT2, BAT3 |
| 1 | 20A | Fuse_2010_5025Metric_Pad1.52x2.65mm_HandSolder | F1 |
| 2 | C48332 5A | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F2, F3 |
| 4 | 75 | R_0603_1608Metric | R_IN1, R_IN2, R_IN3, R_IN4 |
| 1 | 453k | R_0402_1005Metric | R_LD1 |
| 1 | 10k | R_0402_1005Metric | R_TS_PU1 |
Show 37 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | C720477 ~ | SW_SPST_TS-1088-xR020 | SW1, SW2 |
| 1 | Thermistor_NTC | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | TH1 |
| 5 | C22452 ~ | D_SMA | D1, D2, D3, D4, D5 |
| 2 | C2286 red | LED_0603_1608Metric | D6, D13 |
| 1 | C2296 yellow | LED_0805_2012Metric | D7 |
| 5 | C2297 green | LED_0805_2012Metric | D8, D9, D10, D11, D12 |
| 1 | 120R Murata Electronics BLM18PG121SN1D | L_0603_1608Metric | FB1 |
| 1 | 1u | L_Wurth_WE-LQSH-3012 | L1 |
| 16 | 10U 10u Samsung | C_0603_1608Metric | C1, C2, C6, C8, C29, C31, C32, C33 +8 |
| 6 | 10N 10n | C_0402_1005Metric | C3, C4, C7, C9, C23, C27 |
| 18 | 100N 100n Murata Electronics | C_0402_1005Metric | C5, C10, C14, C15, C16, C18, C19, C20 +10 |
| 1 | 10U 10u Samsung Electro-Mechanics | C_1206_3216Metric | C11 |
| 1 | 22U 22u Samsung Electro-Mechanics | C_1206_3216Metric | C12 |
| 1 | 330N 330n Samsung Electro-Mechanics | C_0603_1608Metric | C13 |
| 2 | 4U7 4u7 Samsung Electro-Mechanics | C_0402_1005Metric | C17, C37 |
| 4 | 1u Samsung Electro-Mechanics | C_0402_1005Metric | C24, C26, C53, C54 |
| 2 | 10P 10p | C_0402_1005Metric | C25, C28 |
| 1 | 2.2U 2.2u | C_0805_2012Metric | C30 |
| 2 | 47N 47n | C_0402_1005Metric | C38, C39 |
| 1 | 1n | C_0402_1005Metric | C40 |
| 6 | 22R YAGEO | R_0402_1005Metric | R1, R2, R3, R6, R7, R9 |
| 7 | 10K 10k | R_0402_1005Metric | R4, R5, R11, R13, R25, R28, R32 |
| 1 | 120 | C_0402_1005Metric | R8 |
| 1 | 68K 68k | R_0603_1608Metric | R10 |
| 1 | 30K 30k | R_0603_1608Metric | R12 |
| 11 | 1k | R_0402_1005Metric | R14, R16, R17, R18, R19, R20, R21, R22 +3 |
| 1 | 100K 100k YAGEO | R_0402_1005Metric | R15 |
| 1 | 2 | R_0603_1608Metric | R24 |
| 1 | 500R | R_0402_1005Metric | R26 |
| 1 | 20K 20k | R_0603_1608Metric | R27 |
| 1 | 2K2 2k2 | R_0402_1005Metric | R29 |
| 1 | 5K24 5k24 | R_0603_1608Metric | R30 |
| 1 | 30K31 30k31 | R_0805_2012Metric | R31 |
| 1 | 100 | R_0402_1005Metric | R33 |
| 1 | 5m DSLR-K-3-5F | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R34 |
| 1 | 20K 20k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R37 |
| 1 | 10K 10k | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R38 |
Power board design files
The KiCad project lives in the tudsat-rocket/power_board repository on GitHub; these links point at the commit this page was built from.
- Layoutpower_board.kicad_pcb
- Schematicpower_board.kicad_sch
- BOMproduction/bom.csv
Power board: common questions
What microcontroller does the Power board use?
The Power board is built around the STM32F105RCTX, from the STM32 family.
How big is the Power board?
The Power board measures 78 × 95 mm, has 4 copper layers and is 1.599998 mm thick.
How many components are on the Power board?
142 components, from 57 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 Power board design files?
From the tudsat-rocket/power_board 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 Power board design in my own project?
The repository has no license, so all rights stay with tudsat-rocket. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Power board 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.
Similar boards
STM32LumenPnP Motherboard
opulo-inc
149 × 95 mm296 parts4LCC-BY-SA-4.03.7k
STM32Main panel
google
234 × 84 mm26 parts4LApache-2.02.9k
STM32Type g
169 × 30 mm24 parts2LApache-2.02.9k
STM32Base
52.3 × 52.3 mm36 parts2LApache-2.02.9k
STM32Type a
150 × 30 mm14 parts2LApache-2.02.9k
STM32Type c
188 × 30 mm17 parts2LApache-2.02.9k