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BMS

embeddedalpha·BMS·Schematic/BMS_v2.kicad_pcb

BMS PCB layout, top view — open source STM32 board by embeddedalpha
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About the BMS PCB

BMS is an open source STM32 PCB design by embeddedalpha, published on GitHub. It is a 2-layer board measuring 100 × 48 mm, with 185 components from 60 distinct parts.

Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the BQ24610RGER, FDN359AN, BQ76PL536A, TCAN332 and TPS62177DQC. By type, the board carries 68 resistors, 62 capacitors, 20 diodes, 11 transistors, 7 ICs and 6 connectors.

It belongs with the power & battery designs in this gallery.

From the project

Battery Management System for 6s4p Li-ion Pack

BMS, from the project README
From the project README

Main components on the BMS

BQ24610RGERFDN359ANBQ76PL536ATCAN332TPS62177DQCSTM32F103C8TxPAC1720-1-AIA-TR

BMS bill of materials (BOM)

185 components, 60 distinct parts.

QtyPartRefs
1
BQ24610RGER
IC1
1
FDN359AN
IC2
1
BQ76PL536A
U1
1
TCAN332
U2
1
TPS62177DQC
U3
1
STM32F103C8Tx
U4
1
PAC1720-1-AIA-TR
U5
3
SI7617DN-T1-GE3
Q1, Q2, Q5
2
SIS412DN-T1-GE3
Q3, Q4
6
CSD18543Q3AT
Q6, Q7, Q8, Q9, Q10, Q11
1
8MHz
Y1
1
CHARGER
J1
1
Conn_01x07
J2
1
SYSTEM
J3
1
BATTERY
J4
1
Conn_01x04
J5
1
Conn_01x06
J6
6
500
Lemi_1, Lemi_2, Lemi_3, Lemi_4, Lemi_5, Lemi_6
2
NTCG163JF103FT1
RT1, RT2
1
D_Schottky
D1
Show 40 more
QtyPartRefs
12
BZT52B5V1-E3-08
D2, D3, D4, D5, D6, D7, D8, D9 +4
7
LED
D14, D15, D16, D17, D18, D19, D20
1
6.8U
L1
1
6.8U
L2
1
CP1
C1
6
0.1U
C2, C4, C7, C12, C13, C14
2
1U
C3, C8
1
0.056U
C5
1
C_Small
C6
2
22P
C9, C18
4
10U
C10, C15, C16, C17
1
1U
C11
16
0.1U
C19, C20, C21, C22, C23, C24, C25, C26 +8
6
3300P
C31, C32, C33, C34, C35, C36
5
2.2U
C38, C41, C43, C49, C53
3
0.047U
C40, C45, C47
2
1U
C44, C46
4
0.47U
C50, C52, C55, C58
7
10N
C51, C54, C56, C59, C60, C61, C62
1
22U
C57
6
R
R1, R2, R3, R4, R5, R6
1
9.31K
R7
1
430K
R8
11
100K
R9, R10, R11, R14, R15, R16, R17, R19 +3
2
1K
R12, R21
1
0.01
R13
1
10
R18
1
0.010
R23
1
500K
R24
12
1K
R26, R27, R28, R29, R30, R31, R32, R33 +4
6
1M
R37, R39, R40, R41, R42, R43
6
R
R44, R45, R46, R47, R48, R49
3
100K
R50, R59, R61
1
100
R51
2
1.82K
R52, R54
2
1.47K
R53, R55
2
0
R56, R57
1
2.7K
R58
7
1K
R60, R62, R63, R64, R65, R66, R68
1
120
R67

BMS design files

The KiCad project lives in the embeddedalpha/BMS repository on GitHub; these links point at the commit this page was built from.

BMS: common questions

What microcontroller does the BMS use?

The BMS is built around the STM32F103C8Tx, from the STM32 family.

How big is the BMS PCB?

The BMS measures 100 × 48 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BMS?

185 components, from 60 distinct parts. The full bill of materials is listed on this page.

Where can I download the BMS design files?

From the embeddedalpha/BMS repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the BMS design in my own project?

The repository has no license, so all rights stay with embeddedalpha. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the BMS 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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