2 layers150 × 127 mm
2 layers81 × 81 mm
- Size
- 81 × 81 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 71
- Nets
- 63
- Pads
- 222
- Tracks, vias
- 350, 63
- Pours
- 37
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 23 Nov 2024
- Updated
- 16 Feb 2025
Overview
BMS is an open-source printed circuit board by jeevv, from the jeevv/Rover-2025 repository on GitHub. It is a 2-layer board of 81 × 81 mm with 71 parts on 63 nets, routed with 350 tracks and 63 vias.
It is built around the ADS1115IDGS, LM2576T-ADJ and 74HC4051, with the ISO1540D, FDC6305N and SS34 among its other parts. Its parts include 38 resistors, 10 ICs, 9 capacitors, 6 connectors and 2 transistors. It belongs with the power boards of this library.
Main components
6
ADS1115IDGS
MSOP10Ultra-Small, Low-Power, 4 Channels 16-Bit Analog-to-Digital Converter with Internal ReferenceTexas InstrumentsUncategorised
LM2576T-ADJ
TO-220-5-40℃~+125℃ 1 1.23V~37V 3A 40V 52kHz 5mA Adjustable Buck Buck Built-in No TO-220-5 DC-DC Converters ROHSHTCDC-DC Converters
74HC4051
SOP-16-40℃~+85℃ 1 170MHz 28ns 29ns 3V~9V 5ns 5pF 80Ω 8:1 SOP-16 Analog Switches, Multiplexers ROHSWuxi I-core ElecAnalog Switches, Multiplexers
ISO1540D
SOIC-8-40℃~+125℃ 2500 50kV/us Bidirectional Bidirectional automatic direction、Open-drain buffer output SOIC-8 I2C Isolators ROHSTexas InstrumentsI2C Isolators
FDC6305N
SOT-23-6-55℃~+150℃ 1.25W 1.2V 2 N-Channel 20V 45mΩ@2.5V 4A 513pF 60pF 7nC@4.5V SOT-23-6 MOSFETs ROHSTECH PUBLICMOSFETs
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
Parts
71| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R15, R18, R37, R38, R39, R40, R41, R42, R43, R44, R45 |
| 9 | 1.8k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R13, R14, R16, R17, R21, R22, R23, R24 |
| 6 | 20 | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R1, R2, R3, R4, R25, R26 |
| 6 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R19, R20, R46, R47, R48 |
| 6 | 4N35 | Package_DIP:DIP-6_W7.62mm | U4, U5, U6, U12, U13, U14 |
| 3 | 0.1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C8, C9 |
| 3 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R6, R8 |
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3 |
| 2 | 300p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5 |
| 2 | 470uF | Capacitor_SMD:CP_Elec_10x10.5 | C1, C3 |
| 2 | FDC6305N | Package_TO_SOT_SMD:SuperSOT-6 | Q2, Q3 |
| 1 | 100p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6 |
| 1 | 200k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 47uH | Inductor_SMD:L_10.4x10.4_H4.8 | L1 |
| 1 | 5.5k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12 |
| 1 | 5V | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J11 |
| 1 | 74HC4051 | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | U11 |
| 1 | ADS1115IDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U3 |
| 1 | Conn_01x04_Socket(Battery terminal) | Connector_JST:JST_XH_S4B-XH-A_1x04_P2.50mm_Horizontal | J1 |
| 1 | Conn_01x09_Socket(temp) | Connector_JST:JST_XH_S9B-XH-A-1_1x09_P2.50mm_Horizontal | J7 |
| 1 | Conn_01x10_Socket(Control) | Connector_JST:JST_XH_S10B-XH-A-1_1x10_P2.50mm_Horizontal | J2 |
| 1 | ISO1540 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | LM2576T-ADJ | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1 |
| 1 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H4 |
| 1 | SCL | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | SDA | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J8 |
| 1 | SS34 | Custom:SOD_34FA_ONS | D1 |
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Questions
How big is the BMS PCB?
It measures 81 × 81 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BMS use?
71 parts, built around the ADS1115IDGS, LM2576T-ADJ, 74HC4051 and ISO1540D. 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 BMS KiCad files?
From the jeevv/Rover-2025 repository on GitHub, at the commit this page was made from: the board is astra_power/BMS_astra/BMS_astra/BMS_EL_SEMV_Final-V_01/BMS.kicad_pcb and its schematic astra_power/BMS_astra/BMS_astra/BMS_EL_SEMV_Final-V_01/BMS.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BMS design in my own project?
Its repository states no licence, so its author keeps all rights: ask jeevv before reusing the design.