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參數(shù)資料
| 型號： | L6245 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 5V HARD DISK DRIVE POWER COMBO |
| 中文描述： | 5V的硬盤驅(qū)動器電源組合 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 191K |
| 代理商： | L6245 |
ELECTRICALCHARACTERISTICS
(Continued)
Over velocity detector, summing amplifie
r
Symbol
V
O
I
BC
G
PSRR
GBW
V
R
I
O
Over velocity detector, window comparator
Parameter
TestCondition
Min.
Typ.
Max.
10
1
Units
mV
μ
A
dB
dB
KHz
V
μ
A
Input Offset Voltage
Input Bias Current
Open Loop Gain
Power Supply Rejection Ratio
Unity Gain Bandwidth
Output Range
Output Current
60
50
200
0.5
+400
at DC
3.5
Symbol
t
S
V
TL
V
TH
Solenoid pre-driver
(Note7)
Parameter
TestCondition
Min.
Typ.
Max.
50
–1.18
1.32
Units
μ
s
V
V
Switching Time
Low Threshold
High Threshold
Relative to V
ref
Relative to Vref
–1.32
1.18
Symbol
I
OH
Three phase sensorlessmotor driver
Parameter
TestCondition
Min.
10
Typ.
Max.
Units
mA
Output Current
V
OH
= 1.5V, V
CC
= 4.4V
Symbol
I
O
R
DS(on)
dV/dt
V
F
Motor Current Sense Amplifier
Parameter
TestCondition
Min.
Typ.
Max.
0.5
0.75
Units
A
V/
μ
s
V
Max. Load Current
Out OnResistance
Slew Rate
Body Diode Forward Drop
T
j
= 125
°
C
0.05
I = 0.5A
1.2
Symbol
I
BC
G
Parameter
TestCondition
Min.
Typ.
Max.
1
20.6
5.15
Units
μ
A
V/V
V/V
dB
KHz
V
Input Bias Current
Closed Loop Voltage Gain
Low Gain mode
High Gain mode
at DC
19.4
4.85
50
200
0
PSRR
BW
I
O
Power Supply Rejection Rate
Bandwidth
Output Range
3.2
Spin DAC
(Notes8, 9)
Symbol
Res
NL
INL
CT
Parameter
TestCondition
Min.
8
Typ.
Max.
Units
bit
LSB
LSB
μ
s
Resolution
Differential Nonlinearity
Integral Nonlinearity
Conversion Time
±
0.5
±
0.5
5
From 50% point of –WR falling to
1% settling
Zo
Output Z
Full Scale Temp. Coeff.
High Output Voltage
Low OutputVoltage
14
200
3.15
20
K
FSTC
V
OH
V
OL
ppm/
°
C
V
mV
2.85
0
Unloaded
L6245
8/15
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| L6254 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:12V DISK DRIVE SPINDLE & VCM, POWER & CONTROL “COMBO” |
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