參數(shù)資料
型號: KA3120
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 運動控制電子
英文描述: SPINDLE & VOICE COIL MOTOR ONE CHIP DRIVER
中文描述: VOICE COIL MOTOR CONTROLLER, 2 A, PQFP48
封裝: 14 X 14 MM, HEAT SINK, QFP-48
文件頁數(shù): 39/43頁
文件大?。?/td> 786K
代理商: KA3120
HDD PRODUCTS
KA3120
39
PRELIMINARY
MIC-99D001
January 1999
TYPICAL APPLICATION CIRCUIT
10
6
8
44
45
46
38
47
48
1
2
13
14
15
12
29
9
23, 35
GND
25
18
28
30
17
5
26
27
19
22
21
16
24
20
31
33
32
34
37
41
40
39
36
43
3
7
11
42
4
5V
C11
Q1
R3a
GND
R3b
POR
FG
MCLK
CNTL1
CNTL2
CNTL3
C38
PWMSF
PWMSP
C48
C2
PWMH
PWML
C15
VDD
VCMOFF
SENSEOUT
FILOUT
ERRIN
R25
R18
C30
R30
ERROUT
VCC
VDD
VCM
PGND
Rsense
PVCC
CRET
C16
RRET
R24
CRET2
C20
D20
12V
PCS
SUBGND
R33
U
V
W
PVCC
N
M39a
C39
C40
V
W
M39b
SENSE15 SENSE12
Power
CDLY
VREF
ADJ
On
Reset
Bandgap
Reference
& Bias
Zero
Cross
Detector
FG
Generator
Commutation
&
Spindle Motor
Control
3 State
Input
Control
Brake
AMP
Brake
U
V
W
Brake
Cbrake
3-phase
Output
Driver
CCOMP
PWM
Decoder
Filter
PWM
Decoder
Filter
Thermal
Shutdown
PWM
Decoder
Filter
AMP
Vlimit
Retract
Retract
VCM enable
VCMREF4V
AMP
AMP
AMP
AMP
ERR_Amplifier
VCM+
VCM
SENSE
Amplifier
SENSE
Amplifier
VCM
SENSE
VCM
VCM+
SENSE
U
V
W
GAINSEL
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