2 layers388 × 444 mm
2 layers88.9 × 89.9 mm
Li ion backup
Gosmann/Li-ion-UPS-24V24V-input 24V-out lithium ion backup board
- Size
- 88.9 × 89.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 101
- Nets
- 43
- Pads
- 293
- Tracks, vias
- 489, 199
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Oct 2020
- Updated
- 7 Jun 2021
Overview
Li ion backup is an open-source printed circuit board by Gosmann, from the Gosmann/Li-ion-UPS-24V repository on GitHub. It is a 2-layer board of 88.9 × 89.9 mm with 101 parts on 43 nets, routed with 489 tracks and 199 vias.
It is built around the LM2596S-ADJ, MT3608 and DW01A, with the TP4056, SI2302DS and MMBT5401 among its other parts. Its parts include 28 resistors, 21 capacitors, 7 diodes, 7 fuses and 6 inductors. It belongs with the power boards of this library.
Main components
7
LM2596S-ADJ
TO-263-5-40℃~+125℃@(TA) 1 1.2V~37V 150kHz 3A 40V 80uA Adjustable Buck Buck Built-in No TO-263-5 DC-DC Converters ROHSUMWDC-DC Converters
MT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC ConvertersDW01A
SOT-23-6L-40℃~+85℃ 1 2.5V 300mV~10V 3uA 4.3V Protection IC Support SOT-23-6L Battery Management ROHSPUOLOPBattery Management
TP4056
ESOP-8-40℃~+85℃ 1 1A 35uA 4.2V 4V~6.5V Charging IC Lithium Battery Support Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 ESOP-8 Battery Management ROHSUMWBattery Management
SI2302DS
SOT-231 N-channel 1.5V 2.8A 20V 270pF 83mΩ@4.5V、120mΩ@2.5V 880pF 900mW N-Channel SOT-23 MOSFETs ROHSTECH PUBLICMOSFETsMMBT5401
SOT-23-55℃~+150℃ 1 PNP 100MHz 100nA 150V 300 300mW 500mV 5V 600mA PNP SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)MMBT5551
SOT-23-55℃~+150℃ 1 NPN 160V 200 200mV 300MHz 300mW 50nA 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
README
README.mdli-ion-backup
24V-input 24V-out lithium ion backup board
Parts
101| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1K | Resistor_SMD:R_0805_2012Metric | R1, R2, R5, R11, R12, R17, R18, R23, R28 |
| 8 | 100nF | Capacitor_SMD:C_0805_2012Metric | C2, C8, C9, C11, C13, C15, C18, C20 |
| 8 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4, H5, H6, H7, H8 |
| 7 | 10K | Resistor_SMD:R_0805_2012Metric | R3, R6, R22, R24, R25, R26, R27 |
| 7 | Fuse | e-Power:FUSE_1206_3216Metric | F1, F2, F3, F4, F5, F6, F7 |
| 6 | 220uF | Capacitor_SMD:CP_Elec_8x10 | C3, C6, C7, C10, C14, C16 |
| 5 | 10uH | e-Power:L_10.4x10.4_H4.8 | L2, L3, L4, L5, L6 |
| 4 | 10nF | Capacitor_SMD:C_0805_2012Metric | C1, C5, C12, C21 |
| 3 | GND | e-Power:TestPoint_Pad_D1.0mm | TP9, TP10, TP11 |
| 3 | SS54HF | e-Power:DO-214AC | D2, D4, D5 |
| 3 | Si2302DS | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 2 | 0R | Resistor_SMD:R_0805_2012Metric | R7, R8 |
| 2 | 0R1 | Resistor_SMD:R_1206_3216Metric | R19, R20 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C17, C19 |
| 2 | ADJ | Resistor_SMD:R_0805_2012Metric | R13, R15 |
| 2 | GREEN | LED_SMD:LED_0805_2012Metric | D3, D6 |
| 2 | RED | LED_SMD:LED_0805_2012Metric | D1, D7 |
| 1 | 0.6V | e-Power:TestPoint_Pad_D1.0mm | TP4 |
| 1 | 1.2V | e-Power:TestPoint_Pad_D1.0mm | TP5 |
| 1 | 100R | Resistor_SMD:R_0805_2012Metric | R9 |
| 1 | 12K | Resistor_SMD:R_0805_2012Metric | R16 |
| 1 | 18650_IN | e-Power:BatteryHolder_1x18650 | J1 |
| 1 | 1K2 | Resistor_SMD:R_0805_2012Metric | R21 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 2.2R | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 24V | e-Power:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.08mm_Horizontal_3D | J3 |
| 1 | 24V | e-Power:TestPoint_Pad_D1.0mm | TP6 |
| 1 | 39K | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | 3K9 | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 5V | e-Power:TestPoint_Pad_D1.0mm | TP8 |
| 1 | BATT+ | e-Power:TestPoint_Pad_D1.0mm | TP1 |
| 1 | BATT- | e-Power:TestPoint_Pad_D1.0mm | TP2 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | Ferrite | e-Power:FB_0603_1608Metric | L1 |
| 1 | Input_01x02 | e-Power:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.08mm_Horizontal_3D | J2 |
| 1 | LM2596S-ADJ | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U2 |
| 1 | MMBT5401 | Package_TO_SOT_SMD:SOT-23 | Q5 |
| 1 | MMBT5551 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | OUT_SIG | e-Power:TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.08mm_Horizontal_3D | J4 |
| 1 | SIG | e-Power:TestPoint_Pad_D1.0mm | TP7 |
| 1 | TP4056 | e-Power:ESOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.81mm_ThermalVias | U4 |
| 1 | VIN | e-Power:TestPoint_Pad_D1.0mm | TP3 |
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Questions
How big is the Li ion backup PCB?
It measures 88.9 × 89.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Li ion backup use?
101 parts, built around the LM2596S-ADJ, MT3608, DW01A and TP4056. 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 Li ion backup KiCad files?
From the Gosmann/Li-ion-UPS-24V repository on GitHub, at the commit this page was made from: the board is li-ion-backup-board/li-ion-backup.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Li ion backup design in my own project?
Its repository states no licence, so its author keeps all rights: ask Gosmann before reusing the design.