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UpdatedPrecharge

SCFormulaElectric·USC-Electrical-Systems·2024-25/Boards/Precharge/updatedPrecharge.kicad_pcb

UpdatedPrecharge PCB layout, top view — open source STM32 board by SCFormulaElectric
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About the UpdatedPrecharge PCB

UpdatedPrecharge is an open source STM32 PCB design by SCFormulaElectric, published on GitHub. It is a 2-layer board measuring 96.8 × 40.6 mm, with 51 components from 31 distinct parts.

Its main chip is the STM32F405RGTX, from the STM32 family. Other key parts include the BQ79616PAPRQ1, TPS563300, AMS1117-3.3 and SN65HVD230DR. By type, the board carries 21 resistors, 9 capacitors, 5 ICs, 3 transistors, 2 diodes and 1 fuse.

From the project

This folder contains all individual boards and the PCBs and schematics associated with them.

This folder contains all individual boards and the PCBs and schematics associated with them.

- BusBarboard - Dashbox - Fabassembly - Powerboard - Precharge - Relayboard - TSAL - VIL - randomshitboard - DAQ_sensor

Main components on the UpdatedPrecharge

BQ79616PAPRQ1TPS563300AMS1117-3.3SN65HVD230DRSTM32F405RGTX

UpdatedPrecharge bill of materials (BOM)

51 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
BQ79616PAPRQ1
H11L1
U1
1
TPS563300
LM331
U2
1
AMS1117-3.3
H11L1
U4
1
SN65HVD230DR
LM331
U5
1
STM32F405RGTX
NCP1117LPST50T3G
U6
1
AO3401A
DMN3067LW
Q2
1
AO3400A
DMP2035U
Q3
1
AO3400A
DMN3067LW
Q4
2
ECPU1C105MA5
CL1, CL2
2
C1608C0G1H103JT000N
CT1, CT2
1
3557-2
F5
2
RC0603FR-07100KL
RL1, RL2
2
0603WAF1202T5E
RS1, RS2
2
0603WAF6801T5E
RT1, RT2
2
SM91502ALE
PTVS15VZ1USK
D1, D2
1
4.7UF
22uF
C1
1
1UF
0.47uF
C2
1
100NF
100nF
C3
2
1UF
100nF
C4, C5
1
2.2UF
100nF
C7
Show 11 more
QtyPartRefs
1
20PF
100nF
C9
1
10UF
10uF
C10
1
4.7NF
10uF
C11
7
210k
R1, R2, R3, R7, R8, R9, R10
1
0603WAF604JT5E
210k
R4
1
0603WAF604JT5E
10k
R5
2
25k
R6, R11
4
4.7k
R12, R13, R24, R25
2
10k
R15, R20
2
100k
R16, R21
2
47
R17, R22

UpdatedPrecharge 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.

UpdatedPrecharge: common questions

What microcontroller does the UpdatedPrecharge use?

The UpdatedPrecharge is built around the STM32F405RGTX, from the STM32 family.

How big is the UpdatedPrecharge PCB?

The UpdatedPrecharge measures 96.8 × 40.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the UpdatedPrecharge?

51 components, from 31 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 UpdatedPrecharge 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 UpdatedPrecharge 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 UpdatedPrecharge 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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