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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)： | 7/15頁 |
| 文件大小： | 191K |
| 代理商： | L6245 |
ELECTRICALCHARACTERISTICS
(Continued)
VCM DAC
(Notes 5, 6)
Symbol
Res
N.L.
I.N.L.
CT
Parameter
TestCondition
Min.
8
Typ.
Max.
Units
bit
LSB
LSB
μ
s
Resolution
Differential Nonlinearity
Integral Nonlinearity
Conversion Time
±
0.5
±
0.5
2
From 50% point of WR falling to
1% settling
Z
O
Output Z
Full Scale Temp. Coeff.
High Output Voltage
Low OutputVoltage
Zero Scale Offset
100
200
1.52
–1.47
±
10
FSTC
V
OH
V
OL
V
ZSO
ppm/
°
C
V
V
mV
Relative to V
ref
Input Code = 7Fh
Relative to Vref Input Code = 80h
Relative to V
ref
Input Code = 00
1.46
–1.53
Over velocity detector, coil voltage senseamplifier
Symbol
V
O
Parameter
TestCondition
Min.
–50
Typ.
Max.
+50
Units
mV
Output Offset Voltage
VCM+ = VCM–, within input
common mode range.
Measure wrt to V
ref
(Note 3)
Av = 0.25V/V nominal
at DC
I
BC
G
Input Bias Current
Closed Loop Voltage Gain
Power Supply Rejection Ratio
Bandwidth
Input Common Mode Range
10
μ
A
V/V
dB
KHz
V
0.242
50
200
0
0.258
PSRR
BW
CMR
Above and below these values
the op amp will be in saturation
and will not invert sign.
V
POWER
V
DR
V
OR
I
O
Input Differential Range
Output Range
Output Current
0
V
POWER
3.5
V
V
μ
A
0.3
400
Over velocity detector, coil currentsense amplifier
Symbol
V
O
Parameter
TestCondition
Min.
–50
Typ.
Max.
+50
Units
mV
Output Offset Voltage
VCM_RS1 shorted to GND for:
(a) VCM_CMD < V
ref
and
b) VCM_CMD > V
ref
. Measure wrt
V
ref
Av = 2.5V/V nominal
at DC
G
Closed Loop Voltage Gain
Power Supply Rejection Ratio
Bandwidth
Input Common Mode Range
Output Range
Output Current
2.425
50
200
–0.1
0.5
+400
2.575
V/V
dB
KHz
V
V
mA
PSRR
Bw
CMR
V
R
I
O
2
3.5
L6245
7/15
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