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.6

1. Input PWM signal by Vset pin

The slowest rotational speed is limited, it is unable to totally stop operating.

2. Input PWM signal by CP pin

The slowest rotational speed is not limited , can totally stop operating

Note: Circuit of using that please watch the application circuits.

Truth Table

INN

CP

CO

NO

SO

FG

RD

Mode

H

H

Un-lock

L

H

OFF

L

Rotation

L

H

L

L

L

H

L

L

OFF

OFF

L

Re-circulation

L

OFF

L

L

L

H

Lock

OFF

H

OFF

OFF

Lock Protect

L

H

OFF

L

OFF

Note: CP-H = CP > VSET, CP-L = CP < VSET

Application Notes

VDD(6)

VSET(8)

CO(7)

CP(2)

INN(1)

NO(3)

SO(5)

GND(4)

CO =1uF

CP =47pF

CS =1uF

CS =1uF

RS = 50

RS = 50

RTH =10K

RT1 =20K

CM =1uF

DC=12V

*6

*8

*8

*3

*4

*7

Hall IC input

(FG signal output)

FD128NX Appilcation circuit

Opitional

R =4.7K

FS177

CL =2.2uF

*1

EXT. PWM Signal(mode2)

EXT. PWM Signal(mode1)