Fan Speed Control IC

Version

：A.002

PAGE 5

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FC122

2.0 V

4.0 V

6.0 V

2.0 V

10.0 V

8.0 V

6.0 V

4.0 V

12.0 V

0.0 V

8.0 V

10.0 V

12.0 V

T

20

°C

40

°C

60

°C

2.0 V

10.0 V

8.0 V

6.0 V

4.0 V

12.0 V

0

°C

80

°C

100

°C

120

°C

Typical Applications

1. Fan speed control:

2. Temperature protection:

+1 2V

+1 2V

FAU LT

+1 2V

FAN C

1 00K

Ω

RT_TS

β=40 50

+12V

+5 V

+12V

1 50K

Ω

R_FC

1%

29 K

Ω

R_TS_H

1%

FLT

OUT

VDD

VOT

VST

VSS

FC

TS

FC122

8

4

1

26

5

3

7

+12V