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L6245 датащи(PDF) 8 Page - STMicroelectronics

номер детали L6245
подробное описание детали  5V HARD DISK DRIVE POWER COMBO
PDF  15 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6245 датащи(HTML) 8 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (Continued)
Over velocity detector, summing amplifier
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
VO
Input Offset Voltage
10
mV
IBC
Input Bias Current
1
µA
G
Open Loop Gain
60
dB
PSRR
Power Supply Rejection Ratio
at DC
50
dB
GBW
Unity Gain Bandwidth
200
KHz
VR
Output Range
0.5
3.5
V
IO
Output Current
+400
µA
Over velocity detector, window comparator
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
tS
Switching Time
50
µs
VTL
Low Threshold
Relative to Vref
–1.32
–1.18
V
VTH
High Threshold
Relative to Vref
1.18
1.32
V
Solenoid pre-driver (Note 7)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
IOH
Output Current
VOH = 1.5V, VCC = 4.4V
10
mA
Three phase sensorless motor driver
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
IO
Max. Load Current
0.5
A
RDS(on)
Out On Resistance
Tj = 125
°C
0.75
Ω
dV/dt
Slew Rate
0.05
V/
µs
VF
Body Diode Forward Drop
I = 0.5A
1.2
V
Motor Current Sense Amplifier
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
IBC
Input Bias Current
1
µA
G
Closed Loop Voltage Gain
Low Gain mode
High Gain mode
19.4
4.85
20.6
5.15
V/V
V/V
PSRR
Power Supply Rejection Rate
at DC
50
dB
BW
Bandwidth
200
KHz
IO
Output Range
0
3.2
V
Spin DAC (Notes 8, 9)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
Res
Resolution
8
bit
NL
Differential Nonlinearity
±0.5
LSB
INL
Integral Nonlinearity
±0.5
LSB
CT
Conversion Time
From 50% point of –WR falling to
1% settling
5
µs
Zo
Output Z
14
K
Ω
FSTC
Full Scale Temp. Coeff.
200
ppm/
°C
VOH
High Output Voltage
2.85
3.15
V
VOL
Low Output Voltage
Unloaded
0
20
mV
L6245
8/15



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