CC-BY-SA 3.0
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.
| 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,C1,C2,C9 | 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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