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PDF INA197AIDBVT Data sheet ( Hoja de datos )
| Número de pieza | INA197AIDBVT | |
| Descripción | CURRENT SHUNT MONITOR | |
| Fabricantes | Burr-Brown Corporation | |
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INA193, INA194
INA195, INA196
INA197, INA198
SBOS307B − MAY 2004 − REVISED JUNE 2004
CURRENT SHUNT MONITOR
−16V to 36V Common-Mode Range
FEATURES
D WIDE COMMON-MODE VOLTAGE:
−16V to 36V
D LOW ERROR: 3.0% Over Temp (max)
D BANDWIDTH: Up to 500kHz
D THREE TRANSFER FUNCTIONS AVAILABLE:
20V/V, 50V/V, and 100V/V
D QUIESCENT CURRENT: 900µA (max)
D COMPLETE CURRENT SENSE SOLUTION
APPLICATIONS
D WELDING EQUIPMENT
D NOTEBOOK COMPUTERS
D CELL PHONES
D TELECOM EQUIPMENT
D AUTOMOTIVE
D POWER MANAGEMENT
D BATTERY CHARGERS
VIN+
Negative
and
Positive
Common−Mode
Voltage
RS
VIN+
5kΩ
DESCRIPTION
The INA193—INA198 family of current shunt monitors
with voltage output can sense drops across shunts at
common-mode voltages from −16V to +36V, independent
of the INA19x supply voltage. They are available with three
output voltage scales: 20V/V, 50V/V, and 100V/V. The
500kHz bandwidth simplifies use in current control loops.
The INA193—INA195 provide identical functions but
alternative pin configurations to the INA196—INA198
(respectively).
The INA193—INA198 operate from a single +2.7V to
+13.5V supply, drawing a maximum of 900µA of supply
current. They are specified over the extended operating
temperature range (−40°C to +125°C), and are offered in
a space-saving SOT23 package.
IS
V IN −
5kΩ
V+
Load
A1
A2
INA193 −INA198
RL
OUT =
IS RS R L
5kΩ
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright 2004, Texas Instruments Incorporated
www.ti.com
1 page  
www.ti.com
INA193, INA194
INA195, INA196
INA197, INA198
SBOS307B − MAY 2004 − REVISED JUNE 2004
TYPICAL CHARACTERISTICS (continued)
All specifications at TA = +25°C, VS = +12, and VIN+ = 12V, and VSENSE = 100mV, unless otherwise noted.
1000
900
800
700
600
500
400
300
200
100
0
0
QUIESCENT CURRENT vs OUTPUT VOLTAGE
1 2 3 4 5 6 7 8 9 10
Output Voltage (V)
QUIESCENT CURRENT
vs COMMON−MODE VOLTAGE
875
VSENSE = 100mV:
775
VS = 12V
VS = 2.7V
675
575
475
375
VSENSE = 0mV:
275
VS = 12V
VS = 2.7V
175
−16 −12 −8 −4 0
4 8 12 16 20 24 28 32 36
VCM (V)
OUTPUT SHORT−CIRCUIT CURRENT
vs SUPPLY VOLTAGE
34 −40_C
30
+25_ C
26 +125_ C
22
18
14
10
6
2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
Supply Voltage (V)
STEP RESPONSE
G = 20
VSENSE = 10mV to 20mV
Time (2µs/div)
STEP RESPONSE
G = 20
STEP RESPONSE
G = 20
VSENSE = 10mV to 100mV
Time (2µs/div)
VSENSE = 90mV to 100mV
Time (2µs/div)
5
5 Page 
www.ti.com
VSUPPLY
VIN+
5kΩ
RSHUNT
+5V
VIN−
V+
5kΩ
VIN+
5kΩ
VIN−
+5V
V+
5kΩ
INA193, INA194
INA195, INA196
INA197, INA198
SBOS307B − MAY 2004 − REVISED JUNE 2004
LOAD
INA193 −INA198
OUT
INA193 −INA198
OUT
+5V
40kΩ
INA152
40kΩ
40kΩ
40kΩ
VOUT
+2.5V
VREF
Figure 5. Bi-directional Current Monitoring
Up to +36V
RSHUNT
Solenoid
VIN+
5kΩ
+2.7V to +13.5V
VIN−
V+
5kΩ
INA193 −INA198
OUT
Figure 6. Inductive Current Monitor Including Flyback
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet INA197AIDBVT.PDF ] | |
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