參數(shù)資料
型號: KA3120
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 運(yùn)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): 18/43頁
文件大?。?/td> 786K
代理商: KA3120
KA3120
HDD PRODUCTS
18
PRELIMINARY
MIC-99D001
January 1999
ELECTRICAL CHARACTERISTICS (Continued)
(Ta=25
°
C, unless otherwise specified)
Characteristic
Symbol
Test conditions
Min.
Typ.
Max.
Unit
VCM REFERENCE VOLTAGE
VCM reference voltage
V
REF
CNTL3=5V
3.8
4.0
4.2
V
VCM ERROR AMPLIFIER
Amplifier output high
V
EOH
V
EOL
I
ESC
V
OSE
A
VE
BG
E
10.8
11.2
11.5
V
Amplifier output low
0.5
0.8
1.2
V
Short circuit current
10
mA
Input offset voltage
15
0
15
mV
Errot amplifier open loop gain
80
dB
Unit gain bandwidth
2.3
MHz
VCM SENSE AMPLIFIER
Amplifier output high
V
SOH
V
SOL
I
SSC
V
OSE
BG
S
A
VS1
A
VS2
10.8
11.2
11.5
V
Amplifier output low
0.5
0.8
1.2
V
Short circuit current
10
mA
Input offset voltage
15
0
15
mV
Unit gain bandwidth
3.4
MHz
Sense amplifier voltage gain1
Gainsel=5V
24
dB
Sense amplifier voltage gain2
Gainsel=5V
6
dB
VCM POWER AMPLIFIER
Power Amplifier gain1
A
PO1
A
PO2
V
POH1
V
POH2
V
POL1
V
POL2
V
OSE
BG
P1
BG
P2
24
24.6
25
dB
Power Amplifier gain2
24
24.6
25
dB
Power Amplifier output high voltage1
11.5
11.8
12.0
V
Power Amplifier output high voltage2
11.5
11.8
12.0
V
Power Amplifier output low voltage1
0
0.2
0.5
V
Power Amplifier output low voltage2
0
0.2
0.5
V
Input offset voltage
15
0
15
mV
Unit gain bandwidth1
2
MHz
Unit gain bandwidth2
2
MHz
VCM OFFSET COMPARATOR
Offset comparator high voltage
V
OCH
V
OCL
V
OCOS
V
OCHYS
4.5
4.8
5.0
V
Offset comparator low voltage
0
0.2
0.5
V
Offset comparator offset voltage
0
mV
Offset comparator hysteresis
5
10
15
mV
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