SPVA030 August   2025 TPS4141-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2HV Measurement
    1. 2.1 Safety
    2. 2.2 Reliability
    3. 2.3 Scalability/Size
    4. 2.4 The Problem with Discrete Designs
    5. 2.5 Integrated Designs
    6. 2.6 TPS4141-Q1
    7. 2.7 RES60A-Q1
  6. 3Summary
  7. 4References

Abstract

As the electric vehicle market trends towards batteries with higher voltages and lower volumes, optimizing the design of high voltage measurement circuits must be considered. Current discrete designs take up large areas, have significant lifetime/temperature drift in precision, and suffer from lower accuracy as a result of exposed node contamination/parasitic leakage. However, using an integrated design for high voltage measurement helps remedy these problems, improving on safety, size, and reliability.

This application note highlights the differences between discrete and integrated designs for high voltage measurement in battery management systems and discusses how the TPS4141-Q1 and RES60A-Q1 can be used in such applications.