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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)： | 3/21頁 |
| 文件大小： | 222K |
| 代理商： | FAN8621B |
FAN8621B
3
Pin Definitions
Pin Number
1
2
3
4
5
6
Pin Name
VCNT
CSOFT
ADJ
SENSE5
VDD
FG
IO
A
A
A
A
P
O
Pin Function Description
Speed controller output. Range 3.8V to 0.5V
Capacitor for soft commutation
Adjust external regulator voltage (VREF)
5V power line sensing
5V power line
Frequency generation for spindle rotation speed. Typically
1.08KHz (5400RPM)
Regulator voltage output. This voltage is controlled by pin 3
voltage
System clock. Digital clock input as a time reference
1/2 VCC
Power on reset. H : normal, L: power fail
Define POR delay time
Sense amplifier gain selection. H : High gain (8), L : Low gain (2)
Coarse PWM input for VCM set point
Fine PWM input for VCM set point
Output of PWM inputs to voltage converter
4V reference output for VCM
Define retract delay time.
12V power line
Filtered output of PWM inputs. This voltage define VCM set point
Non-inverting input of differential amplifier for VCM current
sensing
Power for retract when power down
12V power line for VCM
Negative output terminal of VCM power amplifier
Adjust maximum retract current
Output of differential amplifier for VCM current sensing
Ground for VCM
positive output terminal of VCM power amplifier
Inverting input of VCM error amplifier
5V power line
Output of VCM error amplifier
Ground for spindle motor
Spindle W phase output
7
VREF
P
8
9
CLK
I
HALFVCC
POR
CDLY
GAINSEL
PWMH
PWML
CFVCM
VCMREF4V
CRET
VCC
FILOUT
SENSE
P
O
A
I
I
I
A
P
A
P
A
A
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
CRET2
PVCC
VCM-
RRET
SENSEOUT
PGND
VCM+
ERRIN
VDD
ERROUT
SUBGND
A
P
A
A
A
P
A
A
P
A
P
32
W
A
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