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UC3173A датащи(PDF) 4 Page - Texas Instruments

номер детали UC3173A
подробное описание детали  Full Bridge Power Amplifier
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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UC3173A датащи(HTML) 4 Page - Texas Instruments

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UC3173A
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for TA = 0 to +70°C, VIN = 5V,
VC = VIN = VL, REFIN = VIN/2, RANGE, PARK, and INH = 0V, and TA =TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Current Sense Amplifier
Input Offset Voltage
VCM = 2.5V, Low range mode
2.0
mV
VCM = 2.5V, High range mode
4.0
mV
Input Offset Change with Common
Mode Input
VCM = –1V to 13V, Supplies = 12V, Low Range Mode
2000
µV/V
VCM = –1V to 13V, Supplies = 12V, High Range Mode
4000
µV/V
Voltage Gain
VDIFF = +1.0 to −1.0V, VCM = 2.5V, High Range Mode
0.485
0.50
0.515
V/V
VDIFF = +1.0 to −1.0V, VCM = 2.5V, Low Range Mode
1.95
2.0
2.05
V/V
Saturation Voltage
Low-Side, IOUT = 1mA
0.1
0.3
V
High-Side, IOUT = −1mA, Referenced to VIN
0.1
0.3
V
Parking Function
Park Input Threshold Voltage
0.6
1.1
1.7
V
Park Input Threshold Current
Internal Pull-Up, VIN = 0.6V
50
75
µA
Park Drive Saturation Voltage
IOUT = 50mA
0.15
0.35
V
Park Drive Leakage
VOUT = 20V
50
µA
Regulating Voltage at Park Volts Input
1.275
1.30
1.325
V
Amplifier A Auxiliary Input Bias Current
−300
−750
nA
Amplifier A Parking High-Side
Saturation Voltage
IOUT = −50mA, VIN = 0V, VC = VL = 5V, PARK Open,
VC to VOUT
0.8
0.95
V
Minimum Parking Supply
At VC and VL, VIN = 0V,
A Amplifier Out - VSAT PRKDRV > 0.5V, IPARK =
50mA
1.4
1.7
V
Minimum Supply for Parking Drive and
Power OK Operation
At VL, VC = VIN = 0V, VSAT < 0.5V,
IOUT PRKDRV = 50mA, Rl = 30Ω to 2V
1.1
1.4
V
IOUT PWROK = 5mA, Rl = 300Ω to 2V
1.2
1.6
V
VL Parking Supply Current
PARK Open, VL = 5V, VC = 1.6V, VIN = 0V,
PWROK IOUT = 5mA, PRKDRV IOUT = 50mA
1.6
3.0
mA
Auxiliary Functions
Inhibit Input Threshold
0.6
1.1
1.7
V
Inhibit Input Current
INH = 1.7V
−0.5
−1.0
µA
Range Input Threshold
0.6
1.1
1.7
V
Range Input Current
RANGE = 1.7V
50
100
µA
Comp Adjust Pin Saturation Voltage
RANGE = 0V, Pin Current =
±500µA,
Referenced to AOUT
0.02
0.1
V
Comp Adjust Leakage Current
RANGE = 1.7V, Supplies = 12V,
AOUT -VCOMP = ±6V
5
µA
Total Supply Current when Inhibited
VIN, VC, and VL currents
1.0
1.5
mA
Thermal Shutdown Temperature
(Note 4)
165
°C
Note 4: Guaranteed by design. Not 100% tested in production.
Note 5: The high-side saturation performance of the UC3173A is referenced to the VIN supply pin.
The VC supply pin can operate about 400mV below the VIN supply input without affecting the performance.


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