This project is used to verify the solution verification board design of the DC-DC chip SY7200AABC of Lichuang Mall.
This project is a boost DC-DC LED constant current driver. Input voltage 2.8V~30V, output voltage 30V (MAX@LED open circuit). Support PWM dimming. Can be used for miniaturized portable medium-power LED lighting applications. The current can be set through the sampling resistor R1, and the formula is I=0.2/R.
Physical picture
Actually drives 3 strings of 12V10W LED lights inside
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