SLVSGZ9B February   2025  – July 2026 TPS4141-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Power Ratings
    6. 5.6 Electrical Characteristics
    7. 5.7 Switching Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Uni-directional Voltage Sensing
      2. 6.3.2 Bi-directional Voltage Sensing
      3. 6.3.3 Bi-directional and Uni-directional Voltage Sensing
      4. 6.3.4 High Voltage Input Range
      5. 6.3.5 Calculating the Output Voltage (VAOUT)
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Divider Ratio Selection
        2. 7.2.2.2 Error Estimation
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.3.1 Uni-directional Voltage Sensing

Configure the TPS4141-Q1 for uni-directional voltage sensing, as Figure 6-1 shows. With uni-directional voltage sensing, REF is normally connected to HVGND. When configured in this manner, the TPS4141-Q1 measures only positive voltages present on HV referenced to HVGND, for example, from 0V to 1200V. The output voltage of AOUT always is positive, with respect to HVGND.

In the application, DIV0 and DIV1 select the divide ratio (DIV) of the TPS4141-Q1 and can dynamically change. This allows for optimization of the AOUT output swing over the complete voltage range present on HV, thereby improving overall accuracy.

The divider ratio selected by DIV0 and DIV1 determines the accuracy of the measurement of the range of voltages. See Figure 6-1 for supported ranges.

TPS4141-Q1 Uni-directional Voltage Sensing Figure 6-1 Uni-directional Voltage Sensing