4 layers71.1 × 134.5 mm
2 layers140.1 × 50 mm
Bms1818
GliderWinchItems/BMS5Battery Management System
- Size
- 140.1 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 290
- Nets
- 233
- Pads
- 838
- Tracks, vias
- 2,325, 327
- Pours
- 19
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 2 May 2020
- Updated
- 19 May 2026
Overview
Bms1818 is an open-source printed circuit board by GliderWinchItems, from the GliderWinchItems/BMS repository on GitHub. It is a 2-layer board of 140.1 × 50 mm with 290 parts on 233 nets, routed with 2,325 tracks and 327 vias.
It is built around the ISO1042DW, MCP6006-E/OT and 74LVC1G14Z, with the H11L1S, MMSZ5245 and LDK320ADU120R among its other parts. Its parts include 57 resistors, 53 capacitors, 18 fuses, 10 diodes and 5 ICs. It belongs with the power boards of this library.
Main components
8
ISO1042DW
SOIC-16-300mil-40℃~+125℃ 1.71V~1.89V、2.25V~5.5V 5Mbps 73.4mA CAN Transceiver SOIC-16-300mil Isolated CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
MCP6006-E/OT
SOT-23-5-40℃~+125℃ 1 1.6mV 1.8V~5.5V 119pA 1MHz 1pA 25nV/√Hz@1kHz 30mA 3V/us 600nV/℃ 70uA 90dB EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5 Operational Amplifier ROHSMicrochip TechnologyOperational Amplifier
74LVC1G14Z
SOT-553-40℃~+125℃ 1 1.2V~3.33V 1.65V~5.5V 200uA 32mA 32mA 6.5ns@5V,50pF 74LVC 750mV~2.35V Power shutdown protection、Noise suppression function Push-pull Schmitt trigger SOT-553 Inverters ROHSDiodes IncorporatedInverters
H11L1S
SOP-6SOP-6 Logic Output Optoisolators ROHSGOODWORKLogic Output Optoisolators
MMSZ5245
SOD-1231 Independent 100nA@11V 15V 16Ω 500mW 600Ω SOD-123 Zener Diodes ROHSonsemiZener DiodesLDK320ADU120R
TO-243AA-40℃~+125℃@(Tj) 1 12V 18V 200mA 200mV@(200mA) 60uA 88dB@(120Hz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive TO-243AA Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsUncategorised
LM7812T
TO-2200℃~+125℃@(Ta) 1 1.2A 12V 35V 55dB@(120Hz) 75uV Fixed Positive Short Circuit Protection、Thermal shutdown TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHGSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MBRS1100
SMB(DO-214AA)-65℃~+175℃ 1 Independent 100V 1A 500uA@100V 750mV@1A SMB(DO-214AA) Schottky Diodes ROHSonsemiSchottky Diodes
README
README.mdBMS
Battery Management System
This repo has directories for three BMS designs.
The original plan used a LTC6813-1 (18 cells), but when it came time to order the pcb, the part was no longer available. The TI BQ76952 (16 cells) was then found to be available in a few months so that design was completed. The testing of the first prototype with the BQA76952 turned up some unexplained failures, plus additional BQ76952 parts would not be available for approximately one year.
The ADBMS1818 chip became available and samples were to be shipped in a few weeks, and additional parts available from Mouser in several months. This gave rise to the second design. The delivery schedule changed and it would be about one year for samples and additional parts. This gave rise to a design based on the MAX14952. The designs differ mainly in the BMS chip. The same processor, STM32L431RxT6, is used and the features are nearly identical in the three designs, e.g. the trickle charger, CAN, and fan interfaces, etc. Much of the documentation for the BQ76952 board applies to all three designs.
Parts
290| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 0.1u | bms1818:C0603 | C7, C8, C100, C101, C104, C118, CC101, CC102, CC103, CC104, CC105, CC106, CC107, CC108, CC109, CC110 +8 |
| 23 | 3.3K | bms1818:R0603 | G5, R28, R31, R32, R116, R123, RG1, RG10, RG11, RG12, RG13, RG14, RG15, RG16, RG17, RG18 +7 |
| 18 | 10 | bms1818:R0603 | RR1, RR2, RR3, RR4, RR5, RR6, RR7, RR10, RR11, RR12, RR13, RR14, RR15, RR16, RR17, RR18 +2 |
| 18 | ~ | bms1818:SOT-23 | F1, F2, F3, F4, F5, F6, F7, F10, F11, F12, F13, F14, F15, F16, F17, F18 +2 |
| 17 | 33 | bms1818:RS-2,5-2 | RD2, RD3, RD4, RD5, RD6, RD7, RD8, RD10, RD11, RD12, RD13, RD14, RD15, RD16, RD17, RD18 +1 |
| 17 | SOLDPAD028 | bms1818:SOLPAD028 | CANH0, CANL0, RXD0, SP2, SP3, TP-GND0, TP-GNDA0, TP1, TP2, TXD0, U$2, U$3, U$4, U$6, U$7, UNK5V1 +1 |
| 12 | 10K | bms1818:R0603 | R9, R10, R14, R15, R18, R19, R21, R24, R30, R100, R102, R124 |
| 10 | 1M | bms1818:R0603 | R2, R3, R7, R12, R101, R104, R110, R128, R130, R131 |
| 8 | 1u | bms1818:C0603 | C2, C5, C102, C110, C111, C114, C121, C126 |
| 7 | @HOLE0, @HOLE1, @HOLE2, @HOLE3, @HOLE4, @HOLE5, @HOLE6 | ||
| 5 | 100K | bms1818:R0603 | R4, R13, R107, R109, R129 |
| 5 | 4.7u 25v | bms1818:C0805 | C112, C116, C119, C122, C125 |
| 5 | SOLDPAD0.6MM | bms1818:SOLPAD.6MM | TP3, TP4, TP5, TP6, TP7 |
| 4 | TBD | bms1818:R0603 | R20, R22, R23, R114 |
| 3 | 1 | bms1818:R0603 | BEAD0, R122, R127 |
| 3 | 1.2K | bms1818:R0603 | R17, R121, R125 |
| 3 | 270K | bms1818:R0603 | R1, R6, R8 |
| 3 | AP7380Y | bms1818:SOT89 | REG1, REG1A0, REG100 |
| 3 | H11L1S | bms1818:SMD-6 | OPT1, OPT100, OPT101 |
| 3 | NFET 20V | bms1818:SOT-23 | FET2, FET3, FET106 |
| 3 | PFET -20V | bms1818:SOT-23 | FET1, FET103, FET104 |
| 3 | ~ | bms1818:CHIP-LED0603 | LED1, LED2, LED3 |
| 2 | 0.1u 25v | bms1818:C0603 | C117, C120 |
| 2 | 1.8K | bms1818:R0603 | R103, R105 |
| 2 | 1N4148 | bms1818:DO41-10_VERT | D1, D2 |
| 2 | 22p | bms1818:C0603 | C105, C106 |
| 2 | 33 | bms1818:RS-2,5 | R$13, RD1 |
| 2 | 33p | bms1818:C0603 | C108, C109 |
| 2 | 4.7u 10v | bms1818:C0603 | C107, C123 |
| 2 | 470K | bms1818:R0603 | R29, R106 |
| 2 | 6.8K | bms1818:R0603 | R27, R111 |
| 2 | Dump2 | bms1818:1X02 | JP5, JP15 |
| 2 | MMSZ52 | bms1818:SOD80C | D3, D8 |
| 2 | NFET | bms1818:SOT-23 | FET100, FET101 |
| 2 | open | bms1818:R0603 | R120, R126 |
| 2 | ~ | bms1818:1X03 | JP4, JP12 |
| 1 | 0.1 | bms1818:M1206 | R16 |
| 1 | 0.1 | bms1818:R0805 | R119 |
| 1 | 0.1u 25v | bms1818:E5-8,5 | C3 |
| 1 | 100 | bms1818:R0603 | R26 |
| 1 | 100n | bms1818:C0603 | C103 |
| 1 | 10@25V | bms1818:ES-2,5L | C4 |
| 1 | 10M | bms1818:R0603 | R11 |
| 1 | 10n | bms1818:C0603 | C115 |
| 1 | 18K | bms1818:R0603 | R108 |
| 1 | 1K | bms1818:R0603 | R5 |
| 1 | 1N4148 | bms1818:SOD123 | D6 |
| 1 | 1N5357 | bms1818:ZENER-VERT | D5 |
| 1 | 1u 25v | bms1818:C0603 | C1 |
| 1 | 1u@100v | bms1818:ES-2,5L | C6 |
| 1 | 1u@100v | bms1818:C1206 | C113 |
| 1 | 3.9K | bms1818:R0603 | R25 |
| 1 | 33K | bms1818:R0603 | R115 |
| 1 | 4.7u | bms1818:C0603 | C124 |
| 1 | 4.7u 6.3 | bms1818:C0603 | CP101 |
| 1 | 4.7u 6.3v | bms1818:C0603 | CP100 |
| 1 | 47k | bms1818:R0603 | R113 |
| 1 | 6.8 | bms1818:R0603 | R117 |
| 1 | 68K | bms1818:R0603 | R118 |
| 1 | 7402 | bms1818:TSSOP14 | IC1 |
| 1 | 74LVC1G14 | bms1818:SOT-23 | IC100 |
| 1 | 8 MHz | bms1818:HC49_S | Q100 |
| 1 | AM6G1215SNZ | bms1818:DCDC7PINB | IC1B0 |
| 1 | DUMP | bms1818:1X02 | JP1 |
| 1 | FTDI | bms1818:1X06 | JP17 |
| 1 | ISO1042 | bms1818:SOIC-8 | U$8 |
| 1 | ISO1042-16PIN | bms1818:SO-16DW | IC2A0 |
| 1 | LDK320ADU120R | bms1818:SOT89 | REG3A0 |
| 1 | LM7812T | bms1818:TO220V | REG3B0 |
| 1 | LTC6813 | bms1818:TQFP64_PAD | U$5 |
| 1 | MBRS1100 | bms1818:SMB_1 | D7 |
| 1 | MCP1401|1416 | bms1818:SOT23-5 | IC101 |
| 1 | MCP6006 | bms1818:SC-70-5 | U$100 |
| 1 | MINUS | bms1818:SPADE_TAB | LUG-GND0 |
| 1 | NFET 100V | bms1818:TO220V | FET4 |
| 1 | NFET 100V si2324A | bms1818:SOT-23 | FET105 |
| 1 | OPEN? | bms1818:R0603 | R112 |
| 1 | PB | bms1818:1X02 | JP2 |
| 1 | PINHD-1X4-MOLEXKK | bms1818:1X4-MOLEXKK | JP14 |
| 1 | PINHD-2X10_KEYED | bms1818:2X10_KEYED | JP9 |
The 269 most common of 290 parts.
Questions
How big is the Bms1818 PCB?
It measures 140.1 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bms1818 use?
290 parts, built around the ISO1042DW, MCP6006-E/OT, 74LVC1G14Z and H11L1S. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Bms1818 KiCad files?
From the GliderWinchItems/BMS repository on GitHub, at the commit this page was made from: the board is hw/kicad/bmsbms1818-v2/bms1818_2/bms1818.kicad_pcb and its schematic hw/kicad/bmsbms1818-v2/bms1818.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bms1818 design in my own project?
Its repository states no licence, so its author keeps all rights: ask GliderWinchItems before reusing the design.
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