參數(shù)資料
型號: FAN8621B
英文描述: Industrial Control IC
中文描述: 工業(yè)控制IC
文件頁數(shù): 5/21頁
文件大?。?/td> 222K
代理商: FAN8621B
FAN8621B
5
Internal Block Diagram
Power
Management
Three State
Input
Control
Commutation
Sequencing
&
Spindle Control
External
Brake
Back-EMF
Processing
&
Zero Cross Detector
Bandgap
Reference
&
Bias
FG
Generator
1.3V
SPM output on
start-up clock
hard/soft
Brake
Triangle Wave
Generator
Speed
Discriminator
&
Speed Lock
Indicator
PWMs
Decorder
&
2nd orderFilter
VDD
i
spll
Counter
&
Timing Control
VCMREF4V
VCMREF4V
VCC
gain
2,8
gain
14
error
amp
sense
amp
power
amp
VCM
Gain Selection
Intelligent
Retract
TSD
VCMREF4V
power
amp
VCM
on/off
Retract
FG
Speed
Reference
U V W
Retract
Retract
U
clock
clock
4
42
6
2
44
45
46
47
48
1
13
14
12
16
24
17
21
19
28
30
11
3
7
40
41
38
37
34
32
39
27
22
23
26
20
25
U
V
W
N
pre
amp
SPM bias enable
i
spll
25K
9K
7K
11K
Real
Speed
VCC
VDD
Current
Limiting
VCM
H-bridge
Power Driver
SPM
Three Phase
Power Driver
9
36
31
35
43
5
29
18
15
8
CNTL1
CNTL2
CNTL3
READY
RPMSEL
PWMH
PWML
GAINSEL
VCMREF4V
HALFVCC
FG
CLK
POR
CDLY
VREF
ADJ
VDD
VDD VCC
BRAKE
CBRAKE
PVCC
N
U
V
W
CCOMP
PCS
PVCC
VCM+
SENSE
VCM-
PGND
SENSEOUT
ERROUT
ERRIN
FILOUT
CRET
RRET
CRET2
SUBGND
SUBGND
GND
CFVCM
VCNT
CSOFT
SENSE12
SENSE5
VCM+
SENSE
33
10
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