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參數(shù)資料
| 型號(hào)： | Si9990ACS |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | 5-V VCM Driver/Spindle Motor Driver For 1.8- and 2.5-Hard Disk Drives(用于1.8V和2.5V的硬盤(pán)驅(qū)動(dòng)的5V語(yǔ)音線圈電機(jī)驅(qū)動(dòng)器/心軸電機(jī)驅(qū)動(dòng)器) |
| 中文描述： | 5V的氯乙烯驅(qū)動(dòng)器/主軸電機(jī)驅(qū)動(dòng)器1.8和2.5硬盤(pán)驅(qū)動(dòng)器（用于1.8伏和2.5伏的硬盤(pán)驅(qū)動(dòng)的5V的語(yǔ)音線圈電機(jī)驅(qū)動(dòng)器/心軸電機(jī)驅(qū)動(dòng)器） |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大?。?/td> | 345K |
| 代理商： | SI9990ACS |
Si9990ACS
Vishay Siliconix
S-60752—Rev. C, 05-Apr-99
4
FaxBack 408-970-5600, request 70655
www.siliconix.com
Spindle Transconductance Amplifier (A
1
)
Voltage Gain
A
V
R
LOAD
= 50 k
to V
(See Note a)
Measured at 1.2 to 2.9 V
60
dB
Gain-Bandwidth
F
o
SR
R
LOAD
= 50 k
, C
LOAD
= 100 pF to V
R
1
MHz
Slew Rate
0.5
V/μs
Output Voltage Swing
V
OUT
R
= 50 k
to V
R
Bits D
2
D
3
= 00 to 11
0.8
3.1
V
Input Bias Current
I
b
50
nA
Offset Voltage
V
OS
PSRR
10
mV
Power Supply
Spindle Transconductance Amplifier (A
6
and A
7
)
Transconductance
f = 10 kHz
50
dB
G
ms
R
LOAD
= 4
to V
MOT
0.4
0.5
0.6
A/V
Output Current Limit Accuracy
-20
20
%
-3 dB Bandwidth
F
o
SR
R
LOAD
= 4
to V
MOT
, C
LOAD
= 100 pF
70
kHz
Slew Rate
1
V/μs
Output Current Cutoff Voltage
Spindle Half-Bridge
Measured at OA1 with respect to GND
2.70
2.85
3.0
V
On-Resistance (Sink or Source)
r
DS(on)
I
OUT
= 1 A
0.6
I
OUT
= 1 A including 0.23
R
S
(Sink + Source), I
OUT
= 1 A
V
OUT
= V
MOT
V
OUT
= 0 V
I
OUT
= 1 A
0.7
2.3
Output Leakage Current
I
DS(off)
100
μA
-100
Clamp Diode
VCM Transconductance Amplifier (A
3
, A
4
, A
5
, A
9
, A
10
and DMOS FETs)
V
f(on)
-1.5
V
Transconductance
G
MVH
G
MVL
I
OS
, HG
I
OS
, LG
V
OH
V
OL
V
CL
R
F
Gain Select = High, I
OUT
= ±300 mA
Gain Select = Low, I
OUT
= ±75 mA
Gain Select = High
142
150
158
mA/V
35.6
37.5
39.4
Output Offset Current, High Gain
-5
0
+5
mA
Output Offset Current, Low Gain
I
OS
(G/Sel = High)-I
OS
(G/Sel = Low)
I
OH
= 0.3 A, V
MOT
= 4.5 V, ± Output
I
OL
= 0.3 A, V
MOT
= 4.5 V, ± Output
I
F
= 0.3 A
From I
SENSE(OUT)
to IA4
-5
0
+5
Output Compliance
3.9
4.2
V
0.2
0.4
Clamp Diode Voltage
1.5
Feedback Resistance
10
k
3 dB Bandwidth
A
4
, A
5
A
9
,
A
10
1
MHz
0.4
PSRR
@ 10 kHz
50
dB
Output Swing
A
3
, A
5
A
4
R
LOAD
= 50 k
to V
R
0.2
V
DD
-0.2
V
DD
-1.2
V
1.2
Reference Generator (A
8
)
Input Resistance
Measured at V
ADIN
Pin
I
OUT
= ±2 mA
72
k
Output Voltage
V
R
2.37
2.5
2.63
V
SPECIFICATIONS
Parameters
Symbol
Test Conditions Unless
Specified
V
ADIN
= V
DD
= V
MOT
= 5 V
±
10%
R
R
SPIN
= 17 k
, T
A
= 0 to 70
°
C
Limits
Unit
Min
Typ
Max
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