2 layers319.7 × 58.4 mm
2 layers60 × 100 mm
MasterBoard A
Gregification/BeeMS5Battery Management System
- Size
- 60 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 167
- Nets
- 167
- Pads
- 554
- Tracks, vias
- 1,025, 247
- Pours
- 16
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 May 2025
- Updated
- 15 Sep 2026
Overview
MasterBoard A is an open-source printed circuit board by Gregification, from the Gregification/BeeMS repository on GitHub, published under the MIT licence. It is a 2-layer board of 60 × 100 mm with 167 parts on 167 nets, routed with 1,025 tracks and 247 vias.
It is built around the ISO1044BD, ISOM8110DFSR and AP7375-50SA, with the AP7384-50SA, LM74502DDF and TLV713185PDBV among its other parts. Its parts include 53 capacitors, 50 resistors, 20 ICs, 14 diodes and 11 transistors. It belongs with the power boards of this library.
Main components
12
ISO1044BD
SOIC-8-40℃~+125℃ 1.71V~1.89V、2.25V~5.5V、4.5V~5.5V 5Mbps 70mA CAN FD Transceiver SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
ISOM8110DFSR
SOIC-4SOIC-4 Optocoupler Emulator (Optocoupler Replacement) ROHSTexas InstrumentsOptocoupler Emulator (Optocoupler Replacement)
AP7375-50SA
SOT-23-40℃~+125℃@(Tj) 1 2.1uA 300mA 35mV 45V 5V 85dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsAP7384-50SA
SOT-23-40℃~+125℃@(Tj) 1 2.5uA 40V 50mA 5V Fixed Positive Short Circuit Protection、Thermal Shutdown SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LM74502DDF
TSOT-23-8-40℃~+125℃ 2Ω 3.2V~65V Active High High Side Switch Overvoltage protection、Under-voltage lockout、Reverse voltage protection、Integrated charge pump TSOT-23-8 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
TLV713185PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 1.8V 150mA 230mV@(150mA) 5.5V 50uA 65dB@(1kHz) 73uVrms Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
W5500
LQFP-48_7x7-40℃~+85℃ 10BASE-T、100BASE-TX 3.3V 32KB SPI SPI Wake-up function、Programmable LED indication、Low-power mode Yes LQFP-48(7x7) Ethernet Controllers ROHSWIZNETEthernet ControllersTSM2328CX
SOT-23MOSFETsTaiwan SemiconductorMMBT5550L
SOT-23-55℃~+150℃ 1 NPN 100nA 140V 225mW 250mV 60 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSonsemiBipolar (BJT)TS4148
-- Diodes - General Purpose ROHSTaiwan SemiconductorDiodes - General Purpose
ES1D
SMA(DO-214AC)-55℃~+150℃ 1 Independent 1A 1V@1A 200V 35ns 5uA@200V SMA(DO-214AC) Fast Recovery / High Efficiency Diodes ROHSMDDDiodes - Rectifiers - Fast Recovery
ESD2CAN36DBZRQ1
SOT-23-3-55℃~+150℃ 2.8pF 233W@8/20us 36V 4.3A@8/20us 40V 5nA 61V ESD SOT-23-3 ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsUncategorised
README
README.mdBeeMS
Battery Management System (BMS)
a work in progress
BMS for University Of Texas At Arlington's FSAE Race team's E27 vehicle.
point of contact for this repo is George Boone
Development
- Code Composer Studio 12
- dependency on Driver Lib
- projects are stand alone, no dependencies on other projects in this repo.
- Kicad 9
- common symbol and footprint library shared amongst all Kicad projects. "zzLocal".
goerge (Gorge Albrecht) is not in any way involved or associated with this project. that account was accidentally listed as a contributor because of a typo in the spelling of george (George Boone).
Parts
167| Qty | Value | Footprint | References |
|---|---|---|---|
| 21 | 220n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C101, C102, C104, C108, C109, C110, C201, C204, C208, C210, C313, C315, C321, C402, C403, C407 +5 |
| 13 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C107, C203, C205, C206, C207, C209, C211, C212, C213, C301, C302, C309, C503 |
| 7 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C304, C305, C307, C308, C310, C311, C404 |
| 7 | 3.32k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R101, R105, R110, R203, R204, R402, R404 |
| 7 | 332 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R103, R112, R311, R312, R316, R317, R504 |
| 6 | 10n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C312, C319, C405, C406, C408, C409 |
| 6 | TSM2328CX | Package_TO_SOT_SMD:SOT-23-3 | Q201, Q202, Q402, Q501, Q502, Q503 |
| 5 | 14.3 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R302, R304, R305, R307, R308 |
| 5 | 2.4k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R107, R108, R109, R503, R506 |
| 5 | 49.9 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R106, R309, R310, R313, R314 |
| 5 | MMBT5550L | Package_TO_SOT_SMD:SOT-23 | Q101, Q102, Q103, Q301, Q302 |
| 4 | 10 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R209, R212, R306, R315 |
| 4 | 12.4k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R201, R303, R406, R407 |
| 4 | 22.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R102, R206, R208, R211 |
| 4 | 88.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R104, R202, R207, R501 |
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H101, H102, H103 |
| 3 | TS4148 | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D101, D501, D503 |
| 3 | green | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D102, D201, D202 |
| 2 | 10u | Inductor_SMD:L_1210_3225Metric_Pad1.42x2.65mm_HandSolder | L201, L202 |
| 2 | 18p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C303, C306 |
| 2 | 6.8n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C316, C317 |
| 2 | AP64060ZQ | Package_TO_SOT_SMD:TSOT-23-6 | U204, U205 |
| 2 | ES1D | Diode_SMD:D_SMA | D203, D204 |
| 2 | ISOM8110DFS | zzLocalLibraries-Footprints:ISOM811_SOIC-4_DFG | U502, U506 |
| 2 | MCP2542FDxMF | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U101, U102 |
| 2 | MCP33151 | Package_SO:MSOP-10_3x3mm_P0.5mm | U404, U405 |
| 2 | NCV68061 | Package_TO_SOT_SMD:TSOT-23-6 | U409, U503 |
| 2 | NSI5030 | Diode_SMD:Nexperia_CFP3_SOD-123W | U403, U501 |
| 2 | yellow | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D103, D104 |
| 1 | 100k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R111 |
| 1 | 10V | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D504 |
| 1 | 140k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R205 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R301 |
| 1 | 22n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C318 |
| 1 | 3.9V | Package_TO_SOT_SMD:SOT-23 | D402 |
| 1 | 4.7u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C314 |
| 1 | 51k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R210 |
| 1 | 750 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R405 |
| 1 | AP7375-50SA | Package_TO_SOT_SMD:SOT-23 | U505 |
| 1 | AP7384-50SA | Package_TO_SOT_SMD:SOT-23 | U401 |
| 1 | Choke_CommonMode_FerriteCore_1243 | Inductor_SMD:L_CommonModeChoke_Coilcraft_1812CAN | FL101 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J105 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y301 |
| 1 | ESD2CAN36DBZRQ1 | Package_TO_SOT_SMD:TSOT-23_HandSoldering | CR501 |
| 1 | G5Q-1A 24Vdc | Relay_THT:Relay_SPST_Omron-G5Q-1A | K101 |
| 1 | Global LV and CAN | zzLocalLibraries-Footprints:Molex_Micro-Fit_3.0_43045-0600_2x03_P3.00mm_Horizontal | J102 |
| 1 | HRLV | zzLocalLibraries-Footprints:Molex_Micro-Fit_3.0_43045-0600_2x03_P3.00mm_Horizontal | J103 |
| 1 | ISO1044BD | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U509 |
| 1 | LM4040DBZ-4.1 | Package_TO_SOT_SMD:SOT-23 | U408 |
| 1 | LM74502 | Package_TO_SOT_SMD:SOT-23-8_Handsoldering | U202 |
| 1 | LOGO | LOGO | G*** |
| 1 | MH1608-151Y | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB301 |
| 1 | Main Current Hall Sensor | Connector_Molex:Molex_Micro-Fit_3.0_43045-0400_2x02_P3.00mm_Horizontal | J101 |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Wuerth_693072010801 | J107 |
| 1 | RJ45_Amphenol_RJMG1BD3B8K1ANR | zzLocalLibraries-Footprints:RJ45_Amphenol_RJMG1BD3B8K1ANR | J301 |
| 1 | TLV713185PDBV | Package_TO_SOT_SMD:SOT-23-5 | U402 |
| 1 | W5500 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U301 |
| 1 | XM0G3507QPTRQ1 | zzLocalLibraries-Footprints:PT0048A-IPC_B | U105 |
| 1 | blue | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D106 |
| 1 | red | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D105 |
| 1 | uart | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J106 |
| 1 | ~1A | Fuse:Fuseholder_Blade_Mini_Keystone_3568 | F101 |
Questions
How big is the MasterBoard A PCB?
It measures 60 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MasterBoard A use?
167 parts, built around the ISO1044BD, ISOM8110DFSR, AP7375-50SA and AP7384-50SA. 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 MasterBoard A KiCad files?
From the Gregification/BeeMS repository on GitHub, at the commit this page was made from: the board is hardware/MasterBoard_A/MasterBoard_A.kicad_pcb and its schematic hardware/CAN DC SS switch/CAN DC SS switch.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MasterBoard A design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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