Copyright  ANPEC Electronics Corp.

Rev. A.7 - Apr., 2004

APX9141

www.anpec.com.tw

3

Rank

Maximum Operate

Point Bop

Maximum Release

Point Brp

Unit

AT

+50

-50

A+70

-70

B

+100

-100

D

+150

-150

Gauss

Note : For 5cm and below DC fan application, grade A/AT device is recommended to avoid magnetic

sensitivity problem. For above 5cm DC fan application, grade B device is acceptable for most cases.

Figure 1 : Switching Circuit for Output Rise Time and Fall Time Measurement

Test Information

Application Circuit

Signal Generator

V

DD

Scope

23

14

C

L2

C

L1

R

L1

R

L2

APX9141

Figure 2 Typical DC brushless fan application circuit

23

1

V

DD

+B

-B

APX9141

L1

L2

4

V

DD

C1

C3

C2