4 layers160 × 90 mm
2 layers42 × 22 mm
Analog bms
CKalitin/analog-bms11s2p Li-ion battery module with an analog battery management system (BMS).
- Size
- 42 × 22 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 27
- Pads
- 123
- Tracks, vias
- 161, 25
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 18 Aug 2025
- Updated
- 3 Dec 2025
Overview
Analog bms is an open-source printed circuit board by CKalitin, from the CKalitin/analog-bms repository on GitHub, published under the MIT licence. It is a 2-layer board of 42 × 22 mm with 58 parts on 27 nets, routed with 161 tracks and 25 vias.
It is built around the TLV7031DBV, TLV7032QDDFRQ1 and TPS71518DCKRM3, with the SMD0805B110TF among its other parts. Its parts include 30 resistors, 5 ICs, 5 transistors, 3 capacitors and 3 diodes. It belongs with the power boards of this library.
Main components
4
TLV7031DBV
SOT-23-5-40℃~+125℃ 1 1.6V~6.5V 100uV 1pA 2pA 315nA 3us 4.5ns 73dB 7V 7mV Built-in hysteresis Push-pull Rail-to-rail input SOT-23-5 Comparators ROHSTexas InstrumentsComparators
TLV7032QDDFRQ1
SOT-23-8SOT-23-8 Comparators ROHSTexas InstrumentsComparators
TPS71518DCKRM3
SC-70-5-40℃~+125℃@(Tj) 1 1.8V 24V 60dB@(100kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SC-70-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SMD0805B110TF
0805-40℃~+85℃ 1.1A 1.5mm 1.5mm 100A 2.2mm 210mΩ 2A 300ms 35mΩ 6V 800mW 0805 Resettable Fuses ROHSBrightkingResettable Fuses
README
README.mdanalog-bms
1s2p Li-ion battery module with an analog battery management system (BMS).
Read The Project Blog Post!!
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 1M | Resistor_SMD:R_0805_2012Metric | R2, R3, R7, R8, R9, R13, R14, R15, R16, R17, R18, R19, R21, R23, R28, R30 |
| 9 | R | Resistor_SMD:R_0805_2012Metric | R4, R6, R10, R12, R20, R22, R25, R27, R29 |
| 7 | LOGO | LOGO | G***, G***, G***, G***, G***, G***, G*** |
| 3 | 1u | Capacitor_SMD:C_0805_2012Metric | C3, C4, C5 |
| 3 | D_Schottky | Diode_SMD:D_SOD-323 | D1, D2, D4 |
| 3 | PMOS | analog_bms_library:TSOT_23_No_Arrow | Q1, Q3, Q5 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric | R5, R11 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R24, R26 |
| 2 | NMOS | analog_bms_library:TSOT_23_No_Arrow | Q2, Q4 |
| 2 | TLV7031DBV | Package_TO_SOT_SMD:SOT-23-5 | U1, U2 |
| 1 | LTC1754 | Package_TO_SOT_SMD:SOT-23-6 | U6 |
| 1 | MODULE+ | analog_bms_library:1.5_mm_Through_Hole | J2 |
| 1 | MODULE- | analog_bms_library:1.5_mm_Through_Hole | J3 |
| 1 | SMD0805B110TF | Resistor_SMD:R_0805_2012Metric | F1 |
| 1 | Screw_Terminal_1x2 | analog_bms_library:691502710002 | J1 |
| 1 | TLV7032QDDFRQ1 | analog_bms_library:TLV7032QDDFRQ1 | U3 |
| 1 | TPS71518DCKRM3 | analog_bms_library:TPS71518DCKRM3 | U4 |
| 1 | Thermistor_PTC | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | ~ | analog_bms_library:M3_Mounting_Through_Hole | H1 |
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Questions
How big is the Analog bms PCB?
It measures 42 × 22 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Analog bms use?
58 parts, built around the TLV7031DBV, TLV7032QDDFRQ1, TPS71518DCKRM3 and SMD0805B110TF. 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 Analog bms KiCad files?
From the CKalitin/analog-bms repository on GitHub, at the commit this page was made from: the board is pcb/analog_bms_rev1/analog_bms.kicad_pcb and its schematic pcb/analog_bms_rev1/analog_bms.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Analog bms 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).