2 layers48.3 × 20.3 mm
UINIO MCU STM32L051K8U6
uinika/UINIO-MCU-STM32L051K8U6
the Evaluation Board base on STM32L051K8 Series.
30 parts9
2 layers64.8 × 39.4 mm
LithiumBMS
JiriS97/LithiumBMSLi-Ion and Li-Pol Battery management system with MCU
- Size
- 64.8 × 39.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 125
- Nets
- 83
- Pads
- 377
- Tracks, vias
- 1,053, 134
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 10 May 2018
- Updated
- 10 May 2018
Overview
LithiumBMS is an open-source printed circuit board by JiriS97, from the JiriS97/LithiumBMS repository on GitHub, published under the MIT licence. It is a 2-layer board of 64.8 × 39.4 mm with 125 parts on 83 nets, routed with 1,053 tracks and 134 vias.
It is built around the STM32L051K8U6, LM324 and INA219AID, with the VOM1271, TCMD4000 and BAV99 among its other parts. Its parts include 60 resistors, 32 capacitors, 12 diodes, 9 ICs and 5 connectors. It belongs with the power boards and the STM32 boards of this library.
Main components
8
STM32L051K8U6
UFQFPN-32(5x5)-40℃~+85℃ 1.65V~3.6V 12bit 27 2KB 32 Bit 32MHz 64KB 8KB ARM Cortex-M0+ Built-in FLASH UFQFPN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsST Microelectronics
LM324
SOP-14-1.5V~10V 0℃~+70℃ 24V 250nA 3V~20V 4 40mA 50nA 700uA 7mV 80dB SOP-14 Operational Amplifier ROHSHXY MOSFETOperational Amplifier
INA219AID
SOIC-8-40℃~+125℃ 0.1uV/℃ 0V~26V 1 10uV 120dB 20nA 3V~5.5V 700uA Bidirectional detection、Zero drift / auto-zero、Input filter、Power monitoring、Digital output interface ±26V SOIC-8 Current Sense Amplifiers ROHSTexas InstrumentsCurrent Sense Amplifiers
VOM1271
SOIC4Photovoltaic MOSFET Driver with Integrated Fast Turn-Off, Solid-State RelayVishay IntertechnologyUncategorised
TCMD4000
SOP-16-4.4mm-40℃~+100℃ 1.25V 1V@5mA,20mA 3.75kV 300us@10mA,100Ω 35V 4 600% 60mA 6V 80mA DC Darlington Transistor SOP-16-4.4mm Transistor, Photovoltaic Output Optoisolators ROHSVishay IntertechnologyTransistor, Photovoltaic Output Optoisolators
BAV99
SOT-231 Pair Series Connection 1.25V@150mA 100V 215mA 250mW 4A 4ns 500nA@80V SOT-23 Switching Diodes ROHSNexperiaSwitching Diodes
IRLR7833
DPAK-55℃~+175℃ 1 N-channel 140A 140W 2.3V 30V 4.01nF 470pF 5.5mΩ@4.5V 50nC@4.5V 950pF N-Channel DPAK MOSFETsInfineon TechnologiesMOSFETsBSS84
SOT-23-55℃~+150℃ 1 P-Channel 130mA 2.8pF 24.6pF 2V 3.2Ω@5V 300mW 4.7pF 50V 590pC@10V SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
README
README.mdLithiumBMS
This project is 1-6S Li-Ion/Li-Pol Battery management system, with balancer, load switch and advanced features as external monitoring/setting over UART and temperature measurement Development of this board began for BUT (VUT Brno in Czech), on Robotics course.
It also includes configurator app, which can be found in this repo.
Supported batteries
All Li-Ion and Li-Pol batteries of 1-6 serially connected cells
Parameters
| Parameter | Value | Unit |
|---|---|---|
| Dimmensions | 65x40x21 | mm |
| Maximal number of cells | 6 | - |
| Minimal number of cells | 1 | - |
| Maximal voltage of entire accupack | 26 | V |
| Maximal voltage per single cell | 6 | V |
| Maximal pulse current with this configuration | 30 | A |
| Maximal current of WAGO connector | 16 | A |
| Maximal current of MOSFETs | 100 | A |
| Balancing current | 60 ÷ 80 | mA |
| Peak power consumption | 5 | mA |
| Idle power consumption | 120 | uA |
| Typical consumed current when measuring U, I, P | 2 | mA |
| Typical consumed power when measuring voltage of cells | 4 | uA |
| Typical average power consumption | 200 | uA |
| Typical current drain from cell that is being balanced | 70 | mA |
| Typical power drain from cell that is being balanced | 200 | mW |
| Operating temperature range | -20 ÷ +80 | °C |
| Storing temperature range | -20 ÷ +100 | °C |
| Internal resistance of saturated power MOSFETs | 4,5 | mΩ |
| Total internal resistance when MOSFEts are saturated | 9 | mΩ |
| Period of cell voltage measurement | configurable | ms |
| Period of voltage, power and current measurement | configurable | ms |
| Time of microcontroller sleep state | configurable | ms |
Detailed description of supported AT commands and the board itself can be found in attached PDF documents in the Docs folder, schematic and PCB layout in the PCB folder
License
This project is licensed under the MIT License - see the LICENSE.md file for details
Parts
125| Qty | Value | Footprint | References |
|---|---|---|---|
| 26 | 100n | Capacitors_SMD:C_0603 | C1, C2, C10, C11, C12, C15, C16, C17, C18, C19, C20, C21, C22, C24, C25, C27 +10 |
| 12 | 330k | Resistors_SMD:R_0603 | R25, R26, R27, R28, R29, R30, R34, R35, R36, R37, R38, R39 |
| 12 | 680k | Resistors_SMD:R_0603 | R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24 |
| 10 | 4k7 | Resistors_SMD:R_0603 | R40, R41, R42, R43, R44, R45, R51, R52, R54, R55 |
| 7 | 220R | Resistors_SMD:R_0603 | R1, R2, R3, R4, R5, R6, R46 |
| 6 | 1u | Capacitors_SMD:C_0603 | C13, C14, C23, C26, C30, C31 |
| 6 | 3V0 | Diodes_SMD:D_MiniMELF | D2, D3, D4, D5, D6, D7 |
| 6 | 56R | Resistors_SMD:R_2512 | R7, R8, R9, R10, R11, R12 |
| 4 | 1k | Resistors_SMD:R_0603 | R33, R59, R60, R61 |
| 3 | 0R03 | Resistors_SMD:R_1206 | R56, R57, R58 |
| 3 | 1M | Resistors_SMD:R_0603 | R31, R32, R62 |
| 3 | BAV99 | TO_SOT_Packages_SMD:SOT-23 | D12, D13, D14 |
| 2 | IRLR7833 | TO_SOT_Packages_SMD:TO-252-2 | Q3, Q4 |
| 2 | LM324 | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U3, U4 |
| 2 | TCMD4000 | Housings_SSOP:SOP-16_4.4x10.4mm_Pitch1.27mm | U1, U2 |
| 1 | 100K | Resistors_SMD:R_0603 | R53 |
| 1 | 10R | Resistors_SMD:R_0603 | R50 |
| 1 | 15A | Fuse_Holders_and_Fuses:BladeFuse-Mini_Keystone_3568 | F2 |
| 1 | 16V0 | Diodes_SMD:D_MiniMELF | D1 |
| 1 | 2N7002 | TO_SOT_Packages_SMD:SOT-23 | Q1 |
| 1 | 330R | Resistors_SMD:R_0603 | R47 |
| 1 | BALANCER | Connectors_JST:JST_EH_B07B-EH-A_07x2.50mm_Straight | J1 |
| 1 | BSS84 | TO_SOT_Packages_SMD:SOT-23 | Q2 |
| 1 | D_Schottky | Diodes_SMD:D_SMA | D8 |
| 1 | EXT_ON | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J3 |
| 1 | INA219 | TO_SOT_Packages_SMD:SOT-23-8 | U8 |
| 1 | POWER | TerminalBlocks_WAGO:TerminalBlock_WAGO-804_RM5mm_2pol | J2 |
| 1 | Polyfuse | Resistors_SMD:R_1812 | F1 |
| 1 | RED | LEDs:LED_0603 | D9 |
| 1 | STM32L051K8 | Housings_QFP:LQFP-32_7x7mm_Pitch0.8mm | U7 |
| 1 | SWD | Pin_Headers:Pin_Header_Straight_1x06_Pitch2.54mm | J4 |
| 1 | SW_Push | JS_ElectroMechanical:Button_SMD_5.2mm | SW1 |
| 1 | TMP36 | TO_SOT_Packages_SMD:SOT-23-5 | U9 |
| 1 | TPS783 | TO_SOT_Packages_SMD:SOT-23-5 | U5 |
| 1 | UART | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | J5 |
| 1 | VOM1271 | Housings_SSOP:SOP-4_3.8x4.1mm_Pitch2.54mm | U6 |
Questions
How big is the LithiumBMS PCB?
It measures 64.8 × 39.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LithiumBMS use?
125 parts, built around the STM32L051K8U6, LM324, INA219AID and VOM1271. 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 LithiumBMS KiCad files?
From the JiriS97/LithiumBMS repository on GitHub, at the commit this page was made from: the board is PCB/v1.0/KiCad/LithiumBMS.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the LithiumBMS 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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