SBOS977A March   2019  – May 2021 INA302-Q1 , INA303-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Bidirectional Current Sensing
      2. 7.3.2 Out-of-Range Detection
      3. 7.3.3 Alert Outputs
        1. 7.3.3.1 Setting Alert Thresholds
          1. 7.3.3.1.1 Resistor-Controlled Current Limit
            1. 7.3.3.1.1.1 Resistor-Controlled Current Limit: Example
          2. 7.3.3.1.2 Voltage-Source-Controlled Current Limit
        2. 7.3.3.2 Hysteresis
    4. 7.4 Device Functional Modes
      1. 7.4.1 Alert Operating Modes
        1. 7.4.1.1 Transparent Output Mode
        2. 7.4.1.2 Latch Output Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Selecting a Current-Sensing Resistor (RSENSE)
        1. 8.1.1.1 Selecting a Current-Sensing Resistor: Example
      2. 8.1.2 Input Filtering
      3. 8.1.3 Using the INA30x-Q1 With Common-Mode Transients Greater Than 36 V
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Related Links
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

GUID-799844BD-201D-428F-9787-DF83D7D61FB1-low.svg Figure 5-1 PW Package14-Pin TSSOPTop View
Table 5-1 Pin Functions
PIN TYPE DESCRIPTION
NO. NAME
1 VS Analog Power supply, 2.7 V to 5.5 V
2 OUT Analog output Output voltage
3 LIMIT1 Analog input ALERT1 threshold limit input; see the Section 7.3.3.1 section for details on setting the limit threshold
4 REF Analog input Reference voltage, 0 V to VS
5 GND Analog Ground
6 LATCH1 Digital input Transparent or latch mode selection input
7 LATCH2 Digital input Transparent or latch mode selection input
8 NC — No internal connection
9 LIMIT2 Analog input ALERT2 threshold limit input; see the Section 7.3.3.1 section for details on setting the limit threshold
10 DELAY Analog input Delay timing input; see the Section 7.3.3 section for details on setting the delayed alert response for comparator 2
11 ALERT2 Analog output Open-drain output; active-low. This pin is an overlimit alert for the INA302-Q1 and an underlimit alert for the INA303-Q1.
12 ALERT1 Analog output Open-drain output, active-low overlimit alert
13 IN– Analog input Connect to load side of the current-sensing resistor
14 IN+ Analog input Connect to supply side of the current-sensing resistor