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INA250-Q1 AEC-Q100, 36-V, Bidirectional, Precision Current Sense Amplifier With Integrated Shunt Resistor
SBOS805C
July 2016 – September 2023
INA250-Q1
PRODUCTION DATA
CONTENTS
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INA250-Q1 AEC-Q100, 36-V, Bidirectional, Precision Current Sense Amplifier With Integrated Shunt Resistor
1
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Integrated Shunt Resistor
7.3.2
Short-Circuit Duration
7.3.3
Temperature Stability
7.4
Device Functional Modes
7.4.1
Amplifier Operation
7.4.2
Input Filtering
7.4.2.1
Calculating Gain Error Resulting from External Filter Resistance
7.4.3
Shutting Down the Device
7.4.4
Using the Device with Common-Mode Transients Above 36 V
8
Applications and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Current Summing
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curve
8.2.2
Parallel Multiple INA250-Q1 Devices for Higher Current
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.3
Application Curve
8.2.3
Current Differencing
8.2.3.1
Design Requirements
8.2.3.2
Detailed Design Procedure
8.2.3.3
Application Curve
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Examples
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Related Documentation
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
PW|16
MPDS361A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbos805c_oa
sbos805c_pm
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Data Sheet
INA250-Q1 AEC-Q100, 36-V, Bidirectional, Precision Current Sense Amplifier With Integrated Shunt Resistor
1
Features
Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
Device HBM ESD Classification Level 2
Device CDM ESD Classification Level C5
Functional Safety-Capable
Documentation available to aid functional safety system design
Precision Integrated Shunt Resistor:
Shunt Resistor: 2-mΩ
Shunt Resistor Tolerance: 0.1% (Maximum)
15 A Continuous from –40°C to +85°C
0°C to +125°C Temperature Coefficient:
10 ppm/°C
High Accuracy:
Gain Error (Shunt and Amplifier): 0.3% (Maximum)
Offset Current: 50 mA (Maximum, INA250A2-Q1)
Four Available Gains:
INA250A1-Q1: 200 mV/A
INA250A2-Q1: 500 mV/A
INA250A3-Q1: 800 mV/A
INA250A4-Q1: 2 V/A
Wide Common-Mode Range: –0.1 V to 36 V
Specified Operating Temperature: –40°C to +125°C
2
Applications
Body Control Modules
DC/DC Converter
Battery Management Systems
Engine Control Systems
Suspension Systems