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FG3X 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FG3X
Spindle Motor and 6-CH Driver [Spindle(PWM), Sled 2-CH(PWM) 4-CH(Linear)]
Fairchild Semiconductor
FG3X Datasheet PDF : 23 Pages
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Internal Block Diagram
(Pins numbered according to the FAN8741MTF--Leadframe exposed to the bot
tom)
MUTE1 22
MUTE2 23
SVCC1 52
DGND 56
VDD 48
VCP 55
CP2 54
CP1 53
IN3
47
IN4 46
PVCC3 42
Mute Selection
&Spindle brake sel.
VCP
OSC
DO4
−
44
DO4+ 43
PGND5
45
PVCC2 31
DO3
−
41
DO3+ 40
PVCC1 32
DO2
−
39
DO2+ 38
BTL
driver
BTL
driver
10k
20k
BTL driver
DO1
−
37
DO1+ 36
PGND4 35
IN1
34
IN2 33
BTL
driver
TSD
LPF
PWM Control
OSC
REF
LPF
PWM Control
OSC
LPF
Reverse Detect
50 DIR
51 FG
2 HU+
3 HU
−
4 HV+
5 HV
−
6 HW+
7 HW
−
Hall bias 8 VH
1 VM1
15 RSP2
VCP
11 RSP1
10
U
12
V
14
W
13
PGND2
9 PGND1
49
SPIN
21
REF
26 VM2
VCP
24 RSL1
4
H
16 SL1+
bridge
17
SL1
−
20 PGND3
25 RSL2
VCP
10k
10k
PWM Control
I
OMAX
Flip Drive
Flop Logic
OSC
H-bridge
18
SL2+
19 SL2
−
29 SLIN2
30
SLIN1
27 SVCC2
28 SGND
2
FAN8741/FAN8742 Rev. 1.0.1
www.fairchildsemi.com
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