FD128MX/FD128NX

Technology

Single Phase Smart DC Motor Driver IC

This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.

No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.

Rev0.6 Aug. 01, 2008

P.5

Motor Speed vs. CP pin connect PWM signal operating Duty Cycle

0

1020

304050

6070

8090

100

0

10

30

40

50

60

70

80

90

20

100

PWM Operating (Duty Cycle)

(%)

Max.

RPM

95

Max.

PWM

Motor Speed vs. Vset pin connect PWM signal Operating Duty cycle

Two kinds use the outside PWM signal to control the difference of way of

rotational speed of the fan to prove:：

0

102030405060

708090

100

0

10

30

40

50

60

70

80

90

20

100

15

15

25KHz PWM operating (Duty Cycle)

(%)

Min.

PWM

Min.

RPM

95

Max.

PWM

Max.

RPM