Low noise anion fan touch IC

• Basic composition

5V Input ; A touch button , A fan with negative ions , A work indicator ;

• Product function

1、 The first power on is the default startup state , The blue light is always on , Anion operation , The fan works （5V）;

2、 Key function ： Long press 2s open / To turn it off , Short press to switch the fan gear , High-grade （5V）→ Low grade （3V）→ High-grade （5V）, such

loop ;

Shutdown status , The blue light goes out , Anion and fan off ;

3、 Without memory function .

• Product circuit diagram