SBOS459E
June 2009 – January 2016
INA220
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Related Products
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Bus Timing Diagram Definitions
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Basic ADC Functions
8.3.1.1
Power Measurement
8.3.1.2
PGA Function
8.3.1.3
Compatibility With TI Hot Swap Controllers
8.4
Device Functional Modes
8.4.1
Filtering and Input Considerations
8.5
Programming
8.5.1
Programming the INA220 Calibration Register
8.5.2
Programming the INA220 Power Measurement Engine
8.5.2.1
Calibration Register and Scaling
8.5.3
Simple Current Shunt Monitor Usage (No Programming Necessary)
8.5.4
Bus Overview
8.5.4.1
Serial Bus Address
8.5.4.2
Serial Interface
8.5.5
Writing to and Reading from the INA220
8.5.5.1
High-Speed Two-Wire Mode
8.5.5.2
Power-Up Conditions
8.6
Register Maps
8.6.1
Register Information
8.6.2
Register Details
8.6.2.1
Configuration Register (address = 00h) [reset = 399Fh]
8.6.3
Data Output Registers
8.6.3.1
Shunt Voltage Register (address = 01h)
8.6.3.2
Bus Voltage Register (address = 02h)
8.6.3.3
Power Register (address = 03h) [reset = 00h]
8.6.3.4
Current Register (address = 04h) [reset =00h]
8.6.4
Calibration Register
8.6.4.1
Calibration Register (address = 05h) [reset = 00h]
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Register Results for the Example Circuit
9.2.3
Typical Application: -48-V Telecom Current/Voltage/Power Sense With Isolation
9.2.4
Typical Application: 48-V Telecom Current/Voltage/Power Sense
9.2.5
Typical Application: General Source Low-Side Sensing
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Related Documentation
12.2
Community Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DGS|10
MPDS035C
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbos459e_oa
sbos459e_pm