Li-IonBatteryProtection
About the Li-IonBatteryProtection PCB
Li-IonBatteryProtection is an open source PCB design by cnobile2012, published on GitHub under the MIT license. It is a 2-layer board measuring 147.2 × 58.3 mm, with 69 components from 24 distinct parts.
Other key parts include the LM311N and PC817. By type, the board carries 31 resistors, 11 test points, 8 ICs, 6 transistors, 4 diodes and 4 capacitors.
It belongs with the power & battery designs in this gallery.
From the project
Circuit to protect Li-Ion and Li-Po batteries at the cell level.
********************** Li-Ion Battery Protection ********************** The MIT License (MIT)
This is an electronics project to help protect Li-Ion batteries and the circuits they are used in. The circuit will work with two to four cells and protects the battery at the cell level. Any one cell that goes below the recomended level will cause the entire curcuit to shut down.
Main components on the Li-IonBatteryProtection
Li-IonBatteryProtection bill of materials (BOM)
69 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | LM311N | DIP-8_W7.62mm | U1, U3, U5, U7 |
| 4 | PC817 | DIP-4_W7.62mm | U2, U4, U6, U8 |
| 1 | IRF540N | TO-220_Neutral123_Horizontal | Q1 |
| 5 | 2N2222A | TO-18_3Pin | Q2, Q3, Q4, Q5, Q6 |
| 1 | CONN_02X03 | Pin_Header_Straight_2x03 | J1 |
| 1 | CONN_01X02 | TerminalBlock_Pheonix_MKDS1.5-2pol | J2 |
| 6 | TEST_1P | Measurement_Point_Round-TH_Big | TP1, TP2, TP3, TP4, TP6, TP9 |
| 5 | TEST_1P | Measurement_Point_Round-TH_Small | TP5, TP7, TP8, TP10, TP11 |
| 3 | TEST_1P | Measurement_Point_Round-TH_Big | W5, W7, W8 |
| 4 | 1N4728 | Diode_DO-41_SOD81_Horizontal_RM10 | D1, D2, D3, D4 |
| 1 | 0.1uf | C_Rect_L4_W2.5_P2.5 | C1 |
| 1 | 0.22uf | C_Rect_L7_W2_P5 | C2 |
| 1 | 0.001uf | C_Rect_L7_W2_P5 | C3 |
| 1 | 47uf | C_Radial_D5_L11_P2.5 | C4 |
| 4 | 10k | Resistor_Horizontal_RM10mm | R1, R8, R15, R22 |
| 4 | 1k | Resistor_Horizontal_RM10mm | R2, R9, R16, R23 |
| 4 | 1Meg | Potentiometer_Bourns_3296Y_3-8Zoll_Angular_ScrewUp | R3, R10, R17, R24 |
| 4 | 47k | Resistor_Horizontal_RM10mm | R4, R11, R18, R25 |
| 4 | 100k | Resistor_Horizontal_RM10mm | R5, R12, R19, R26 |
| 4 | 100 | Resistor_Horizontal_RM10mm | R6, R13, R20, R27 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 120 | Resistor_Horizontal_RM10mm | R7, R14, R21, R28 |
| 1 | 5.1k | Resistor_Horizontal_RM10mm | R29 |
| 1 | 3.3k | Resistor_Horizontal_RM10mm | R30 |
| 1 | 20k | Resistor_Horizontal_RM10mm | R31 |
Li-IonBatteryProtection design files
The KiCad project lives in the cnobile2012/Li-IonBatteryProtection repository on GitHub; these links point at the commit this page was built from.
Li-IonBatteryProtection: common questions
How big is the Li-IonBatteryProtection PCB?
The Li-IonBatteryProtection measures 147.2 × 58.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Li-IonBatteryProtection?
69 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the Li-IonBatteryProtection design files?
From the cnobile2012/Li-IonBatteryProtection repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Li-IonBatteryProtection design in my own project?
Yes, under the terms of its MIT license, which cnobile2012 chose for the repository.
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