Description
18650 lithium battery LED light
Using IP5306 lithium battery charge and discharge chip and PT4115LED constant current driver IC,
it can charge and discharge 18650 battery and can also be used as LED lamp.
The red circle 1 is the charging and boosting 5V circuit for the IP5306 lithium battery. Short press the SW1 switch to trigger the power indicator and the USB5V output.
The red circle 2 is the PT4115 constant current LED drive circuit, the maximum constant current is 800MA, and press and hold SW3 for 3 seconds to control the PT4115 to turn on and off the LED light. The PCB
layout and the PCB layout of the soldered product have been modified to strengthen the heat dissipation of the LED lights, and the LEDs no longer flicker!
Schematic and Layout
https://drive.google.com/file/d/1ur96DsENzhTkWLONwsN2G57WHtL_zUAF/view?usp=sharing
CAD-Custom parts and enclosures
https://drive.google.com/drive/folders/1g2GSRPE1OXkZRZVFmtn60MqCgKGG_jyZ?usp=sharing
May 27,2020
3,101 views
18650 lithium battery LED light
Using IP5306 lithium battery charge and discharge chip and PT4115LED constant current driver IC,
it can charge and discharge 18650 battery
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Published: May 27,2020
Download Gerber file 25
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