SBOSAD1
May 2024
INA791B
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
6.4
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
8
Power Supply Recommendations
9
Layout Example
10
Layout Guidelines
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Revision History
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DEK|15
MPQF687A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbosad1_oa
11.1.1
Related Documentation
For related documentation, see the following:
Texas Instruments,
INA79xEVM
, EVM User's Guide