FAN8705 데이터 시트보기 (PDF) - Fairchild Semiconductor

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FAN8705

5 Channel DSC Motor Driver

Fairchild Semiconductor 

Block Diagram

3

OUT1

38 VM1

4

5

OUT2

OUT3

VM1

6

OUT4

28

27

26

25

7

8

OUT5

OUT6 OUT7

OUT8 OUT9 OUT10

VM2

VM3

VM4

33 VM2 Constant

voltage

16 VM3 H-bridge

13 VM4 CH1

Constant

voltage

H-bridge

CH2

Constant

voltage

H-bridge

CH3

Saturated

H-bridge

CH4

Constant

current

H-bridge

CH5

RS

29 PGND2

PGND1

PGND2

10

2 PGND1

CH1,2

4.9X

R

R

Gain

Voltage

CH3

R

4.9X

2R

control

Reference

7R ADJ3

20

2R

2R

R

ADJ1

22

ADJ2

21

VREF

23

TSD

Output stage

Output stage GAIN control

UVLO Reference out

Logic GAIN1 GAIN2 GAIN3

15 14 12

R

Feed back

Compensation

FC1 9

FC2 11

CH1 CH2 CH3 CH4 CH5

Logic

PS

19

SEL IN1~IN10

18

VDD

17

SGND

24

4

www.fairchildsemi.com

FAN8705 Rev. 1.0.1

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