The product information

Three-speed handheld fan PCBA IC chip

2021-04-15

Three-speed handheld fan PCBA IC chip

changsen small fan PCBA IC function

One. Small fan PCBA IC function description

One trigger button input, four outputs;

Short press to turn on the fan, the sequence is: mid-range, high-end, off, and cycle in turn; and there is an LED indicator, the brightness of the mid- and high-end LEDs is different. Long press the button to turn on the colorful lights, long press again to turn off.

two. Electrical performance of small fan PCBA IC (VDD=3.0V, GND=0, Ta=25℃)

parameter

symbol

Minimum

Typical value

Max

unit

condition

Operating Voltage

VDD

2.4

3.0

5.0

V

Temp. = 25 ℃

Working current

IOP

 

1

 

mA

VDD= 3V , MCU run 1 MIPS

Quiescent Current

ISTB

 

 

6

uA

VDD=5.0V

Drive current low level output

IOL

 

8

 

mA

VDD=3V, V OL =0.5V, All I/O port

Drive current high level output

IOH

 

-8

 

mA

VDD=3V, V OH =2.5V, All I/O port

Over VDD limit current

IVDDmax

 

 

60

mA

 

Over GND limit current

IGNDmax

 

 

60

mA

 

Operating temperature

TA

-20

25

85

 

Storage temperature

Tstg

-40

25

125

 

Reference circuit diagram of small fan PCBA IC:

three. Use of small fan PCBA IC

     Changsen small fan PCBA IC currently uses the following solutions: handheld small fan PCBA, USB small fan PCBA, travel small fan PCBA, MINI small fan PCBA, mobile small fan PCBA, etc.