SLVUD18 November   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 2Hardware
    1. 2.1 Test Equipment
    2. 2.2 Connection Descriptions
  8. 3Implementation Results
    1. 3.1 Recommended Test Setup
      1. 3.1.1 Waveforms
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1. 5.1 Trademarks

Introduction

The TPS4141-Q1 is a high-voltage monitoring device designed for automotive and industrial applications. The TPS4141-Q1 compactly integrates a precision matched, thin-film SiCr resistor divider with a programmable-gain amplifier for sensing system voltages that require accurate measurement in the range of -1kV:1kV. The High-Voltage (HV) sense pin of the device can be seamlessly connected and disconnected from the broader system using the integrated high-voltage switches which also provide uni-directional current blocking when disconnected. With a nominal HV to GND resistance of 30MΩ, TPS4141-Q1 enables power efficient HV sensing that is optimized for a wide range of analog to digital converter full scale voltages through the programmable gain settings of the amplifier, selectable via the DIV0 and DIV1 pins.

The TPS4141Q1EVM helps designers evaluate the operation and performance of the TPS4141-Q1. The TPS4141-Q1 is a compact, -1kV:1kV high-voltage monitor. The inputs and output connections to the board are terminal blocks, which allow for easily wired connections. The TPS4141Q1EVM contains multiple test points for monitoring the TPS4141-Q1 functionality. This user's guide provides the connectors, test point descriptions, operational modes, schematic, bill of materials, and board layout of the EVM.

WARNING:
TPS4141Q1EVM
Do not use EVM to test isolation above VIOWM = 1414VDCHigh voltage
CAUTION:
TPS4141Q1EVM
Hot surface. Contact can cause burns. Do not touch!
CAUTION:
TPS4141Q1EVM
Read the user's guide before use.
CAUTION:
TPS4141Q1EVM
Do not leave EVM powered when unattended.