SBOS790 April   2017 INA233

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 High-Accuracy Analog-to-Digital Convertor (ADC)
      2. 7.3.2 Interleaved Power Calculation
      3. 7.3.3 Power Accumulator and Energy Measurement
      4. 7.3.4 I2C-, SMBus-, and PMBus-Compatible Digital Interface
      5. 7.3.5 Multiple Fault Event Reporting
    4. 7.4 Device Functional Modes
      1. 7.4.1 Continuous verses Triggered Operation
      2. 7.4.2 Device Shutdown
      3. 7.4.3 Averaging and Conversion Time Considerations
      4. 7.4.4 Filtering and Input Considerations
    5. 7.5 Programming
      1. 7.5.1 Default Settings
      2. 7.5.2 Calibration Register and Scaling
      3. 7.5.3 Reading and Writing Telemetry Data and Warning Thresholds
      4. 7.5.4 Reading Telemetry Data and Warning Thresholds
        1. 7.5.4.1 Writing Telemetry Data and Warning Thresholds
      5. 7.5.5 System-Level Calibration With MFR_CALIRATION Command
      6. 7.5.6 Bus Overview
        1. 7.5.6.1 Serial Bus Address
        2. 7.5.6.2 Serial Interface
        3. 7.5.6.3 Writing to and Reading From the INA233
          1. 7.5.6.3.1 Packet Error Checking
          2. 7.5.6.3.2 Bus Timing Requirements
        4. 7.5.6.4 SMBus Alert Response
    6. 7.6 Register Maps
      1. 7.6.1 PMBus Command Support
      2. 7.6.2 Standard PMBus Commands
        1. 7.6.2.1  CLEAR_FAULTS (03h)
        2. 7.6.2.2  RESTORE_DEFAULT_ALL (12h)
        3. 7.6.2.3  CAPABILITY (19h)
        4. 7.6.2.4  IOUT_OC_WARN_LIMIT (4Ah) [default = 01111111 11111000]
        5. 7.6.2.5  VIN_OV_WARN_LIMIT (57h) [default = 01111111 11111000]
        6. 7.6.2.6  VIN_UV_WARN_LIMIT (58h) [default = 00000000 00000000]
        7. 7.6.2.7  PIN_OP_WARN_LIMIT (6Bh) [default = 11111111 11110000]
        8. 7.6.2.8  STATUS_BYTE (78h)
        9. 7.6.2.9  STATUS_WORD (79h)
        10. 7.6.2.10 STATUS_IOUT (7Bh)
        11. 7.6.2.11 STATUS_INPUT (7Ch)
        12. 7.6.2.12 STATUS_CML (7Eh)
        13. 7.6.2.13 STATUS_MFR_SPECIFIC (80h)
        14. 7.6.2.14 READ_EIN (86h)
        15. 7.6.2.15 READ_VIN (88h)
        16. 7.6.2.16 READ_IIN (89h)
        17. 7.6.2.17 READ_VOUT (8Bh)
        18. 7.6.2.18 READ_IOUT (8Ch, R)
        19. 7.6.2.19 READ_POUT (96h, R)
        20. 7.6.2.20 READ_PIN (97h, R)
        21. 7.6.2.21 MFR_ID (99h)
        22. 7.6.2.22 MFR_MODEL (9Ah)
        23. 7.6.2.23 MFR_REVISION (9Bh)
      3. 7.6.3 Manufacturer-Specific PMBus Commands
        1. 7.6.3.1 MFR_ADC_CONFIG (D0h) [default = 01000001 00100111]
        2. 7.6.3.2 MFR_READ_VSHUNT (D1h) [default = 00000000 00000000]
        3. 7.6.3.3 MFR_ALERT_MASK (D2h) [default = XXXXXXXX 11110000]
        4. 7.6.3.4 MFR_CALIBRATION (D4h) [default = 00000000 00000001]
        5. 7.6.3.5 MFR_DEVICE_CONFIG (D5h) [default = 00000010]
        6. 7.6.3.6 5.1.1 CLEAR_EIN (D6h)
        7. 7.6.3.7 TI_MFR_ID (E0h) [value = 01010100 01001001]
        8. 7.6.3.8 TI_MFR_MODEL (E1h) [value = 00110011 00110011]
        9. 7.6.3.9 TI_MFR_REVISION (E2h) [value = 01000001 00110000]
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Programming the Calibration Register
        2. 8.2.2.2 Calculating PMBus Coefficients
        3. 8.2.2.3 Programming Warning Thresholds
        4. 8.2.2.4 Calculating Returned Telemetry Values
      3. 8.2.3 Application Curves
  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 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community 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

9 Power Supply Recommendations

The device input circuitry can accurately measure signals on common-mode voltages beyond the power-supply voltage, VVS. For example, the voltage applied to the VS power supply pin can be 5 V, whereas the load power-supply voltage being monitored (the common-mode voltage) can be as high as 36 V. The device can also withstand the full 0-V to 36-V range at the input pins, regardless of whether the device has power applied or not.

Place the required power-supply bypass capacitors as close as possible to the supply and ground pins of the device to ensure stability. A typical value for this supply bypass capacitor is 0.1 µF. Applications with noisy or high-impedance power supplies can require additional decoupling capacitors to reject power-supply noise.