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参数资料
| 型号： | L6245 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | VOICE COIL MOTOR CONTROLLER, 1.5 A, PQFP64 |
| 封装： | PLASTC, QFP-64 |
| 文件页数： | 13/15页 |
| 文件大小： | 1025K |
| 代理商： | L6245 |
ELECTRICAL CHARACTERISTICS (Continued)
VCM DAC (Notes 5, 6)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
Res
Resolution
8
bit
N.L.
Differential Nonlinearity
±0.5
LSB
I.N.L.
Integral Nonlinearity
±0.5
LSB
CT
Conversion Time
From 50% point of WR falling to
1% settling
2
s
ZO
Output Z
100
FSTC
Full Scale Temp. Coeff.
200
ppm/
°C
VOH
High Output Voltage
Relative to Vref Input Code = 7Fh
1.46
1.52
V
VOL
Low Output Voltage
Relative to Vref Input Code = 80h
–1.53
–1.47
V
VZSO
Zero Scale Offset
Relative to Vref Input Code = 00
±10
mV
Over velocity detector, coil voltage sense amplifier
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
VO
Output Offset Voltage
VCM+ = VCM–, within input
common mode range.
Measure wrt to Vref
–50
+50
mV
IBC
Input Bias Current
(Note 3)
10
A
G
Closed Loop Voltage Gain
Av = 0.25V/V nominal
0.242
0.258
V/V
PSRR
Power Supply Rejection Ratio
at DC
50
dB
BW
Bandwidth
200
KHz
CMR
Input Common Mode Range
Above and below these values
the op amp will be in saturation
and will not invert sign.
0VPOWER
V
VDR
Input Differential Range
0
VPOWER
V
VOR
Output Range
0.3
3.5
V
IO
Output Current
400
A
Over velocity detector, coil current sense amplifier
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Units
VO
Output Offset Voltage
VCM_RS1 shorted to GND for:
(a) VCM_CMD < Vref and
b) VCM_CMD > Vref. Measure wrt
Vref
–50
+50
mV
G
Closed Loop Voltage Gain
Av = 2.5V/V nominal
2.425
2.575
V/V
PSRR
Power Supply Rejection Ratio
at DC
50
dB
Bw
Bandwidth
200
KHz
CMR
Input Common Mode Range
–0.1
2
V
VR
Output Range
0.5
3.5
V
IO
Output Current
+400
mA
L6245
7/15
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