HardLabs

BMS

AerospaceNU·bms-pcb-design·bms-kicad-project/bms-board.kicad_pcb

BMS PCB layout, top view — open source RP2040/RP2350 board by AerospaceNU

About the BMS PCB

BMS is an open source RP2040/RP2350 PCB design by AerospaceNU, published on GitHub. It is a 6-layer board measuring 100 × 100 mm, with 342 components from 75 distinct parts.

Its main chip is the SC0914(13), from the RP2040/RP2350 family. Other key parts include the TMUX7208PWR, BQ7697204PFBR, SIC461ED-T1-GE3, W25Q128JVSIQ TR and AP2114H-3.3TRG1. By type, the board carries 142 resistors, 96 capacitors, 19 diodes, 18 connectors, 17 LEDs and 15 transistors.

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

Main components on the BMS

TMUX7208PWRBQ7697204PFBRSIC461ED-T1-GE3W25Q128JVSIQ TRAP2114H-3.3TRG1SC0914(13)LM4040D30IDBZRMCP4726A0T-E/CHMCP9700AT-E/TT74LVC1T45W6-7LM66100DCKRBCP5616TA

BMS bill of materials (BOM)

342 components, 75 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TMUX7208PWR
Texas Instruments
U1
1
BQ7697204PFBR
Texas Instruments
U2
1
SIC461ED-T1-GE3
Vishay Siliconix
U3
1
W25Q128JVSIQ TR
Winbond Electronics
U4
1
AP2114H-3.3TRG1
Diodes Incorporated
U5
1
SC0914(13)
RP2040
Raspberry Pi
U6
1
LM4040D30IDBZR
Texas Instruments
U7
1
MCP4726A0T-E/CH
Microchip Technology
U8
1
MCP9700AT-E/TT
Microchip Technology
U9
1
74LVC1T45W6-7
Diodes Incorporated
U10
2
LM66100DCKR
Texas Instruments
U11, U12
1
BCP5616TA
Diodes Incorporated
U13
13
DNBT8105-7
Diodes Incorporated
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +5
2
BSS308PE H6327
BSS308PE_H6327
Infineon
Q15, Q16
1
ABM8-272-T3
Abracon LLC
X1
1
PKMCS0909E4000-R1
Murata Electronics
X2
1
S13B-XH-A
JST (JAPAN SOLDERLESS TERMINALS)
J1
1
1053141308
Molex
J2
1
12402012E212A
Amphenol
J3
1
CONN_01X03
Conn_01x03
J4
Show 55 more
QtyPartRefs
1
CONN_02X04_ODD_EVEN
Conn_02x04_Odd_Even
J5
4
XT60PW-F
Amass
J6, J8, J9, J10
1
XT60PW-M
Changzou Amass Elec
J7
1
1053131303
Molex
J11
1
XT60PW-F
Amass
J12
1
5024940670
Molex
J13
4
1053131302
Molex
J14, J15, J16, J17
1
SM06B-GHS-TB(LF)(SN)
SM06B-GHS-TB
JST (JAPAN SOLDERLESS TERMINALS)
J18
1
T2 Copper
Busbar
PATIKIL
BB1
1
T2 Copper
Busbar
PATIKIL
BB2
1
USBLC6-2SC6
STMicroelectronics
CR1
2
PTS810SJG250SMTR LFS
PTS810SJG250SMTRLFS
C&K
SW1, SW2
2
5261
Keystone
TP2, TP3
12
BZT52C5V6T-7
Diodes Incorporated
Z1, Z2, Z3, Z4, Z5, Z6, Z7, Z8 +4
12
LTST-C170KRKT
Lite-On
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +4
4
LTST-C170KGKT
Lite-On Inc.
LED13, LED14, LED15, LED17
1
COM-16347
SparkFun Electronics
LED16
6
BAS100AS_R1_00001
100V
Panjit International Inc.
D1, D3, D4, D17, D18, D19
9
GG0603052R542P
Kyocera AVX
D2, D7, D10, D11, D12, D13, D14, D15 +1
4
GG060303100N2P
Kyocera AVX
D5, D6, D8, D9
1
IHLP6767GZER5R6M01
5.6u
Vishay Dale
L1
40
GCJ188R72A104KA01D
0.1µ
Murata Electronics
C1, C2, C3, C4, C5, C6, C7, C8 +32
11
GCM188R71C105KA64D
1µ
Murata Electronics
C14, C37, C66, C70, C77, C79, C87, C90 +3
5
CL31B105KCHNNNE
1µ
Samsung Electro-Mechanics
C16, C30, C31, C32, C94
4
C0805C101J1GACTU
100p
KEMET
C17, C20, C33, C88
4
GCM21BC71E475KE36L
4.7µ
Murata Electronics
C22, C39, C62, C63
7
GRM2165C1H392JA01D
3.9n
Murata Electronics
C23, C24, C25, C26, C27, C28, C40
1
AEK1216221M080R
220uF
Kyocera AVX
C29
1
CC0805JRNPO9BN561
560p
YAGEO
C36
1
KGM21NR71E333KT
33n
KYOCERA AVX
C38
1
GRM2165C1H152JA01D
1.5n
Murata Electronics
C42
15
GRM32ER71A476KE15L
47µ
Murata Electronics
C44, C45, C46, C47, C48, C49, C50, C51 +7
2
CC0805JPNPO9BN150
15p
YAGEO
C59, C60
3
CL21B106KOQNNNE
10µ
Samsung Electro-Mechanics
C80, C81, C86
1
AC0805JRX7R0BB223
22n
YAGEO
C89
19
CRCW0805100RFKEA
100
Vishay
R1, R6, R11, R16, R21, R26, R31, R36 +11
14
RC0805FR-0727RL
27
YAGEO
R2, R7, R12, R17, R22, R27, R32, R37 +6
24
LTR18EZPF15R0
15
Rohm Semiconductor
R3, R4, R8, R9, R13, R14, R18, R19 +16
15
CRCW0805475RFKEA
475
Vishay
R5, R10, R15, R20, R25, R30, R35, R40 +7
15
RK73H2ATTD1002F
10k
KOA Speer
R62, R63, R64, R65, R67, R68, R70, R93 +7
23
CRCW08050000Z0EA
0
Vishay Dale
R66, R71, R72, R73, R74, R75, R76, R77 +15
1
SEWF5930F1L00P9
1m
RESI
R94
7
RC0805FR-071KL
1k
YAGEO
R96, R102, R105, R115, R117, R137, R138
1
RC0805FR-07562KL
562k
YAGEO
R97
2
RC0805FR-07100KL
100k
YAGEO
R98, R99
1
RC0805FR-07523KL
523k
YAGEO
R100
1
RC0805FR-0793K1L
93.1k
YAGEO
R101
1
CRCW080541K2FKEA
41.2k
Vishay Dale
R103
1
RC0805FR-0790K9L
90.9k
YAGEO
R106
1
RK73H1JTTD3R30F
3.3
KOA Speer Electronics, Inc.
R107
11
RC0805JR-075K1L
5.1k
YAGEO
R108, R112, R113, R114, R116, R125, R126, R129 +3
1
RC0805FR-0711K3L
11.3k
YAGEO
R110
1
RC0805FR-0754K9L
54.9k
YAGEO
R111
2
RT0805BRD078K16L
8.16k
YAGEO
R127, R133
1
LTR18EZPJ301
300
Rohm Semiconductor
R143

BMS design files

The KiCad project lives in the AerospaceNU/bms-pcb-design 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 SC0914(13), from the RP2040/RP2350 family.

How big is the BMS PCB?

The BMS measures 100 × 100 mm, has 6 copper layers and is 1.8 mm thick.

How many components are on the BMS?

342 components, from 75 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 design files?

From the AerospaceNU/bms-pcb-design 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 design in my own project?

The repository has no license, so all rights stay with AerospaceNU. 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 RP2040/RP2350 firmware against it before you order a PCB.

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