SBOS950A July   2019  – January 2021 INA253-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 Integrated Shunt Resistor
      2. 7.3.2 Short-Circuit Duration
      3. 7.3.3 Temperature Stability
      4. 7.3.4 Enhanced PWM Rejection Operation
      5. 7.3.5 Input Signal Bandwidth
    4. 7.4 Device Functional Modes
      1. 7.4.1 Adjusting the Output Midpoint With the Reference Pins
      2. 7.4.2 Reference Pin Connections for Unidirectional Current Measurements
      3. 7.4.3 Ground Referenced Output
      4. 7.4.4 Reference Pin Connections for Bidirectional Current Measurements
        1. 7.4.4.1 Output Set to External Reference Voltage
      5. 7.4.5 Output Set to Mid-Supply Voltage
      6. 7.4.6 Output Set to Mid-External Reference
      7. 7.4.7 Output Set Using Resistor Divide
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Filtering
    2. 8.2 Typical Applications
      1. 8.2.1 High-Side, High-Drive, Solenoid Current-Sense Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Speaker Enhancements and Diagnostics Using Current Sense Amplifier
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 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 Device Support
      1. 11.1.1 Development Support
    2. 11.2 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    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-879FF50E-F40C-4AEF-B12D-82D6DC50F8E1-low.svg Figure 5-1 PW Package20-Pin TSSOPTop View
Table 5-1 Pin Functions
PIN I/O DESCRIPTION
NO. NAME
1 IS– Analog input Connect to load
2 IS– Analog input Connect to load
3 IS– Analog input Connect to load
4 SH– Analog output Kelvin connection to internal shunt. Connect to IN– if no filtering is needed
5 IN– Analog input Voltage input from load side of shunt resistor
6 GND — Ground
7 DNC1 — Do not connect this pin to any potential; leave this pin floating.
8 NC — No connect
9 VS Analog Power supply, 2.7 V to 5.5 V
10 REF2 Analog input Reference voltage 2, 0 V to VS
11 REF1 Analog input Reference voltage 1, 0 V to VS
12 NC — No connect
13 OUT Analog Output voltage
14 DNC2 — Do not connect this pin to any potential; leave this pin floating.
15 NC Analog Reserved; connect this pin to ground
16 IN+ Analog input Voltage input from supply side of shunt resistor
17 SH+ Analog output Kelvin connection to internal shunt. Connect to IN+ if no filtering is needed
18 IS+ Analog input Connect to supply
19 IS+ Analog input Connect to supply
20 IS+ Analog input Connect to supply