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INA253 데이터시트(PDF) 1 Page - Texas Instruments

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부품명 INA253
상세설명  High Voltage, Bidirectional, Zero-Drift, Current-Shunt Monitor with Integrated 2-m廓 Precision Low Inductive Shunt Resistor
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

INA253 데이터시트(HTML) 1 Page - Texas Instruments

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2.7V to 5.5V
Supply
INA253
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to
change without notice.
INA253
SLOS954 – MAY 2018
INA253 High Voltage, Bidirectional, Zero-Drift,
Current-Shunt Monitor with Integrated 2-mΩ Precision Low Inductive Shunt Resistor
1
1 Features
1
Precision Integrated Shunt Resistor
Shunt Resistor: 2 mΩ
Shunt Inductance: 3 nH
Shunt Resistor Tolerance: 0.1% (Max)
±15 A Continuous from – 40°C to 85°C
0°C to 125°C Temperature Coefficient:
10 ppm/°C
Higher –3 dB Bandwidth of 380 Khz
Enhanced PWM rejection
Excellent CMRR
>120-dB DC CMRR
90-dB AC CMRR at 50 kHz
Accuracy:
Gain:
Gain Error: 0.75% (Max)
Gain Drift: 45 ppm/°C (Max)
Offset:
Offset Current: ±12.5 mA (Max)
Offset Drift: 125 µA/°C (Max)
Wide Common-Mode Range: –4 V to 80 V
Available Gains: 100 mV/A, 200 mV/A,
and 400 mV/A
Quiescent Current: 3 mA (Max)
2 Applications
Solenoid and Valve Controls
Transmission control
Motor Controls
Actuator Controls
DC-DC Converters
Factory Automation
3 Description
The INA253 is a voltage-output, current sense
amplifier with an integrated shunt resistor of 2 mΩ.
The INA253 is designed to monitor bi-directional
currents over a wide command mode range from
–4 V to 80 V, independent of the supply voltage.
Three fixed gains are available: 100 mV/A, 200 mV/A,
and 400 mV/A. The integration of the precision
resistor with a zero-drift chopped amplifier provides
calibration equivalent measurement accuracy, ultra-
low temperature drift performance of 15 ppm/°C, and
an optimized Kelvin layout for the sensing resistor.
The INA253 is designed with enhanced PWM
rejection circuitry to suppress large (dv/dt) signals to
enable real time continuous current measurements.
The measurements are critical for in-line current
measurements in a motor drive application and for
Solenoid valve control applications.
This device operates from a single 2.7-V to 5.5-V
power supply, drawing a maximum of 3 mA of supply
current. All gain versions are specified over the
extended operating temperature range (–40°C to
125°C) and are available in an 20-pin TSSOP
package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
INA253
TSSOP (20)
6.50 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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