INA253 Monitor Datasheet

INA253 Datasheet PDF, Equivalent


Part Number

INA253

Description

Current-Shunt Monitor

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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INA253
SLOS954A – JULY 2018 – REVISED DECEMBER 2018
INA253 High Voltage, Bidirectional, Zero-Drift, Current-Shunt Monitor
With Integrated, 2-mΩ, Precision, Low Inductive Shunt Resistor
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
• High Bandwidth: 350 kHz
• Enhanced PWM rejection
• Excellent CMRR
– > 120-dB DC CMRR
– 90-dB AC CMRR at 50 kHz
• Accuracy:
– Gain:
– Gain Error: 0.4% (Max)
– Gain Drift: 45 ppm/°C (Max)
– Offset:
– Offset Current: ±15 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: 2.4 mA (Max)
2 Applications
• Solenoid and Valve Controls
• Transmission control
• Motor Controls
• Actuator Controls
• DC/DC Converters
• Remote I/O Link Control
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 bidirectional
currents over a wide common-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
that 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 a 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 package option addendum
at the end of the data sheet.
Typical Application
Up To 80 V
2.7-V to 5.5-V
Supply
VS
IN+ +
REF2
INA253
OUT
±
IN±
GND
REF1
1
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. PRODUCTION DATA.

INA253
INA253
SLOS954A – JULY 2018 – REVISED DECEMBER 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Electrical Characteristics........................................... 5
7.6 Typical Characteristics .............................................. 7
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 12
8.4 Device Functional Modes........................................ 16
9 Application and Implementation ........................ 19
9.1 Application Information............................................ 19
9.2 Typical Applications ............................................... 21
10 Power Supply Recommendations ..................... 27
11 Layout................................................................... 27
11.1 Layout Guidelines ................................................. 27
11.2 Layout Example .................................................... 27
12 Device and Documentation Support ................. 28
12.1 Device Support...................................................... 28
12.2 Related Documentation ....................................... 28
12.3 Receiving Notification of Documentation Updates 28
12.4 Community Resources.......................................... 28
12.5 Trademarks ........................................................... 28
12.6 Electrostatic Discharge Caution ............................ 28
12.7 Glossary ................................................................ 28
13 Mechanical, Packaging, and Orderable
Information ........................................................... 28
4 Revision History
Changes from Original (July 2018) to Revision A
Page
• Changed device status from advanced information to production data (active) .................................................................... 1
2 Submit Documentation Feedback
Product Folder Links: INA253
Copyright © 2018, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity INA253 SLOS954A – JULY 2018 REVISED DECEMBER 2018 INA253 High Vo ltage, Bidirectional, Zero-Drift, Curre nt-Shunt Monitor With Integrated, 2-mΩ , Precision, Low Inductive Shunt Resist or 1 Features •1 Precision Integrate d Shunt Resistor – Shunt Resistor: 2 mΩ – Shunt Inductance: 3 nH – Shun t Resistor Tolerance: 0.1% (Max) – ± 15 A Continuous from –40°C to +85°C – 0°C to 125°C Temperature Coeffic ient: 10 ppm/°C • High Bandwidth: 35 0 kHz • Enhanced PWM rejection • Ex cellent CMRR – > 120-dB DC CMRR – 9 0-dB AC CMRR at 50 kHz • Accuracy: Gain: – Gain Error: 0.4% (Max) – Gain Drift: 45 ppm/°C (Max) – Offset : – Offset Current: ±15 mA (Max) – Offset Drift: 125 µA/°C (Max) • Wi de Common-Mode Range: –4 V to +80 V Available Gains: 100 mV/A, 200 mV/A, and 400 mV/A • Quiescent Current: 2. 4 mA (Max) 2 Applications • Solenoid and Valve Controls • Transmission control • Motor Controls • Actuator Controls • DC/DC C.
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