HardLabs

BMS-bq76940

kevinxusz·BMS-bq76940·kicad/EvaluationsBoard/EvaluationsBoard.kicad_pcb

BMS-bq76940 PCB layout, top view — open source board by kevinxusz

About the BMS-bq76940 PCB

BMS-bq76940 is an open source PCB design by kevinxusz, published on GitHub. It is a 2-layer board measuring 67.9 × 75.6 mm, with 134 components from 23 distinct parts.

By type, the board carries 56 resistors, 32 capacitors, 20 diodes, 19 transistors and 2 connectors.

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

From the project

battery managment system based on the BQ76940 from TI

battery managment system based on the BQ76940 from Texus Instruments

This project supports akkupacks from 9 to 15 serial Li-Ion based cells (max. Voltage ~63 Volt). It can balance each cell and turns the charge and discharge MOSFETs to control the system over i2c.

- up to 15 cell voltages - akkupack voltage - tempreature (internal + external) - akkupack current

BMS-bq76940, from the project README
From the project README

BMS-bq76940 bill of materials (BOM)

134 components, 23 distinct parts.

QtyPartRefs
15
IRLML2246TRPBF
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +7
2
AUIRLS4030-7P
Q16, Q17
1
ZXMP10A13FTA
Q18
1
BST82
Q19
1
BatPack
P1
1
µC
P2
1
BQ76940
BMS1
1
300µ
RSNS1
3
THERMISTOR
TH1, TH2, TH3
15
5.6V
D1, D2, D3, D4, D5, D6, D7, D8 +7
4
100V
D16, D17, D18, D19
1
16V
D20
21
1µ
C1, C2, C3, C4, C5, C6, C7, C8 +13
3
0.1µ
C20, C21, C22
3
4700p
C26, C27, C28
1
1µ
C29
3
10µ
C30, C32, C33
1
4.7µ
C31
5
100
R1, R2, R6, R7, R8
3
1M
R3, R4, R5
Show 3 more
QtyPartRefs
15
39
R11, R12, R13, R14, R15, R16, R17, R18 +7
18
1k
R31, R32, R33, R34, R35, R36, R37, R38 +10
15
10k
R51, R52, R53, R54, R55, R56, R57, R58 +7

BMS-bq76940 design files

The KiCad project lives in the kevinxusz/BMS-bq76940 repository on GitHub; these links point at the commit this page was built from.

BMS-bq76940: common questions

How big is the BMS-bq76940 PCB?

The BMS-bq76940 measures 67.9 × 75.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BMS-bq76940?

134 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the BMS-bq76940 design files?

From the kevinxusz/BMS-bq76940 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the BMS-bq76940 design in my own project?

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

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