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YX8018 is a 4-pin integrated circuit for driving solar powered garden LED lights and is found on many cheap garden lights. You can buy 10x YX8018 ICs on AliExpress for around $1. You will need the following parts to build one on your own:
Parts
- i-Cd AA 300mAh 1.2v rechargable battery
- YX8018 solar LED driver IC, TO-94 package
- Solar panel, 5cm x 5.5cm
- 3x white LED
- 100 Microhenrys +/-10% inductor (brown black brown silver)
- Switch
YX8018 pins:
- 1 LX
- 2 GND
- 3 CE
- 4 VDD
References:
- https://github.com/mcauser/YX8018-solar-led-driver
- http://www.datasheetcafe.com/yx8018-datasheet-pdf/
- YX8018 Datasheet
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Thanks for info.
I tried but cannot find maximum solar input voltage for YX8018. Do you have this information :)?
Br
Thuy
1.2 volts
More precisely – I found that this chip reqs 1.25V. 3 subcels (3 strips) work well
It is not max solar input voltage, it is battery used. I tried with 5V and it is still safe