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STD Arduino BMS - BQ76930
Arduino BMS - BQ76930
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Update time：
2022-02-16 12:19:28
Creation time：
2018-06-26 23:43:10
Description
Description
WORK IN PROGRESS - NOT READY FOR MANUFACTURE
Looking for collabortors to get this design ready for a a production build.
Project to build a 7S 5P 18650 battery state monitoring system.
Note: the BQ76930 is specifically configured for a 7 series pack.
http://www.ti.com/lit/ds/symlink/bq76930.pdf
Note Table 8-2. Cell Connections for 7S Pack Configuration bq76930
Thanks to scttnlsn for the headstart in this project.
Design Drawing
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | BQ76930 | BQ1 | TSSOP-30 | 1 |
| 2 | JST 11P | CELLVOLTAGES | JST-XH-11-PACKAGE-LONG-PAD-2.5MMPITCH | 1 |
| 3 | 1k | RC10,RC9,RC8,RC7,RC6,RC5B,RC5,RC4,RC3,RC2,RC1,RC0 | 0805 | 12 |
| 4 | 0.68u | CC10,CC9,CC8,CC7,CC6,CC5,CC4,CC3,CC2,CC1,CC0,CC11 | 1206 | 12 |
| 5 | DTSM-62K-S-V-T/R(SN431) | BOOT | SW4-SMD-6.0X6.0X5.0MM | 1 |
| 6 | 10k | RTS1,R1,R2 | 0603 | 3 |
| 7 | 100 | RF1,RF2 | 0805 | 2 |
| 8 | 1N4148 | D2,D3 | DO-35 | 2 |
| 9 | 1u | C1,C2 | 1206 | 2 |
| 10 | 10u | CF1,CF2,C4,C5 | 1206 | 4 |
| 11 | 4.7u | C3 | 1206 | 1 |
| 12 | 1k | R3,R4 | 0603 | 2 |
| 13 | 1M | R11 | 0603 | 1 |
| 14 | Female header1*2P | P1 | HDR-2X1/2.0 | 1 |
| 15 | Header-Female-2.54_1x2 | P3,P4 | HDR-1X2/2.54 | 2 |
| 16 | Wemos D1 Mini | U1 | WEMOS D1 MINI SHIELD LAYOUT | 1 |
| 17 | Header1x8 | P2 | HDR-8X1/2.54 | 1 |
| 18 | Header 1x8 | P5 | HDR-8X1/2.54 | 1 |
| 19 | HT75C0-2 | U3 | SOT-23-5 | 1 |
| 20 | LM340SX-5.0 | U2 | TS3B | 1 |
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