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參數(shù)資料
| 型號(hào)： | SI9993CS |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | 12-V VCM/Spindle Motor Driver for Large Capacity HDD |
| 中文描述： | 12 V的氯乙烯/主軸電機(jī)驅(qū)動(dòng)器的大容量硬盤 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 419K |
| 代理商： | SI9993CS |
Si9993CS
Vishay Siliconix
FaxBack 408-970-5600, request 70653
www.siliconix.com
S-60752–Rev. A, 05-Apr-99
5
Spindle Motor Driver
Transconductance
G
(Start-Up)
I
MOTOR
= 1 A, D5D4(REG5) = 11
1.44
1.60
1.76
A/V
Spindle Driver Input Offset
Voltage
V
(SPDACIN)
I
MOTOR
= 0 A, D5D4(REG5) = 11
40
mV
Current Sense Comparator
Input Bias Current
I
B
(C/S)
2
μA
PWM Constant Off-Time
Stability
D3/D2(REG5) = 01
3.2
3.4
μs
Spindle Driver Input Bias
Current
I
B
(L/S)
50
nA
BEMF Detect Input Offset
Voltage
-20
20
mV
BEMF Detect CM Input Range
2.5
V
CLAMP
-
V
Power-Down Spindle Motor
Break Threshold
Measured at V
CLAMP
, D1D0(REG1) = 11
2.4
3.0
3.6
PWM Pre-Driver for LITTLE FOOT (Spindle Motor)
SRADJ Voltage
V
SRADJ
I
SRADJ
= -50 μA
1.0
V
HSA/B/C Output
High Current (OFF)
I
OH
(HS)
D2/D1(REF4) = 11
mA
V
OUT
= V
CLAMP
- 0.4 V
V
OUT
= V
CLAMP
- 3 V, Slew Controlled Range
V
OUT
= V
CLAMP
- 10V
D2/D1(REF4) = 00
-1.6
-1.6
-24
V
OUT
= V
CLAMP
- 3 V
-13
HSA/B/C Output
Low Current (ON)
I
OL
(HS)
D2/D1(REF4) = 11
V
OUT
= V
CLAMP
- 3 V, Slew Controlled Range
D2/D1(REF4) = 00
1.4
V
OUT
= 3 V
19
LSA/B/C Output
Low Current (OFF)
I
OL
(LS)
D2/D1(REF4) = 11
V
OUT
= 0.4 V
1.9
V
OUT
= 3 V, Slew Controlled Range
V
OUT
= 10V
D2/D1(REF4) = 00
1.7
5.0
V
OUT
= 3 V
13
LSA/B/C Output
High Current (ON)
I
OH
(LS)
D2/D1(REF4) = 11
V
OUT
= 3 V, Slew Controlled Range
D2/D1(REF4) = 00
-1.1
V
OUT
= 3 V
-7
SENA/B/D and VCM ± Clamp
Diode Voltage
V
CL
Measured at I
F
= 20 mA and I
F
= -20 mA
0.5
V
SPECIFICATIONS
Operating Conditions:
V
CC
= V
= 12 V ±10%, V
= 5 V ±10%, V
= V
, RSS = RSV = 0.2
±1%,
R
SRADJ
= 20 k
±1%, Si9942-Si9430 LITTLE FOOT Driver, F
SYSCLK
= 5 MHz, T
A
= 0 to 70°C
Parameter
Symbol
Specific Test Conditions
Limits
Unit
Min
a
Typ
b
Max
a
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