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Std edition CN3801 LiFePO4 Solar Charger SMD

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License: CC-BY-SA 3.0

Project source: Cloned from y CN3801 LiFePO4 Solar Charger ME2108 SMD

Published Time: 2022-01-08 23:10:30
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Description

Solar powered switch-mode charger (CN3801), protector (HY2112) and 5V booster (MT3608) for LiFePO4 batteries. The charger provides maximum power point tracking (MPPT) and can easily be modified to work with LiPo batteries.

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This work is licensed under Creative Commons Attribution-ShareAlike 3.0 Unported License. (http://creativecommons.org/licenses/by-sa/3.0/)

design drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 Connector VIN1,VOUT1,BAT1 HDR-1X2/2.54 3
2 CN3801 U1 SSOP-10_150MIL 1
3 KF301-2P BAT2,VOUT2,VIN2 KF301-2P 3
4 HY2112 U2 SOT-23-6 1
5 100n C8,C9,C1,C2 0805 4
6 22uH L2 IND-SMD_L7.3-W6.8 1
7 47uH L1 IND-SMD_L7.3-W6.8 1
8 27k R3 0805 1
9 3k R4 0805 1
10 2k R9,R7 0805 2
11 1k5 R1 0805 1
12 15k R8 0805 1
13 100R R6 0805 1
14 120R R2 0805 1
15 10u C7,C6 CAP-D5.0XH5.5 2
16 FDS4435BZ Q1 SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL 1
17 R050 R5 2512 1
18 MT3608 U3 SOT-23-6 1
19 Slide Switch PWR SLIDE SWITCH DPDT 1P2T 1
20 FS8205 Q2 SOT-23-6 1
21 CHRG LED2 LED-0805 1
22 DONE LED1 LED-0805 1
23 220n C4 0805 1
24 4u7 C5,C3 0805 2
25 22u C10,C11 1206 2
26 SS34 D1,D2,D3 SMA(DO-214AC) 3

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