SBOSAA6
May 2024
INA790B
ADVANCE INFORMATION
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Integrated Shunt Resistor
6.3.2
Safe Operating Area
6.3.3
Short-Circuit Duration
6.3.4
Temperature Stability
6.3.5
Enhanced PWM Rejection Operation
6.4
Device Functional Modes
6.4.1
Adjusting the Output With the Reference Pin
6.4.1.1
Reference Pin Connections for Unidirectional Current Measurements
6.4.1.2
Ground Referenced Output
6.4.1.3
Reference Pin Connections for Bidirectional Current Measurements
6.4.1.4
Output Set to Mid-Supply Voltage
6.4.2
Adjustable Gain Set Using External Resistors
6.4.2.1
Adjustable Unity Gain
6.4.3
Thermal Alert Function
7
Application and Implementation
7.1
Application Information
7.1.1
Calculating Total Error
7.1.1.1
Error Sources
7.1.1.2
Reference Voltage Rejection Ratio Error
7.1.1.3
External Adjustable Gain Error
7.1.1.4
Total Error Example 1
7.1.1.5
Total Error Example 2
7.1.1.6
Total Error Example 3
7.2
Typical Applications
7.2.1
High-Side, High-Drive, Solenoid Current-Sense Application
7.2.1.1
Design Requirements
7.2.2
Speaker Enhancements and Diagnostics Using Current Sense Amplifier
7.2.2.1
Design Requirements
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Documentation Support
8.1.1
Related Documentation
8.2
Receiving Notification of Documentation Updates
8.3
Support Resources
8.4
Trademarks
8.5
Electrostatic Discharge Caution
8.6
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
6.4
Device Functional Modes