SLVUC72C October   2021  – November 2022 TPSI3050-Q1


  1.   Abstract
  2.   Trademarks
  3.   General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  4. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
    3. 1.3 Description
  5. 2Connection Descriptions
  6. 3Operating Modes
    1. 3.1 Two-Wire Mode
    2. 3.2 Three-Wire Mode
  7. 4Load Configurations
  8. 5Schematic
  9. 6Layout
  10. 7Bill of Materials
  11. 8Revision History


TPSI3050Q1EVM EVM (Evaluation Module) helps designers evaluate the operation and performance of the isolated switch driver, TPSI3050-Q1. This user's guide provides the connectors, test point descriptions, operational modes, schematic, bill of materials, and board layout of the EVM. The TPSI3050-Q1 is a 5-kVRMS reinforced isolated switch driver with 1.5-A peak source current and 3-A peak sink current. The device is able to generate a regulated secondary power supply of 10 V. This regulated power supply allows for a wide selection of MOSFETs or SCRs. The EVM includes two back-to-back 650-V and 42-A NMOS with D2PAK package for easy testing and footprint for one SCR with a TO247-3 package. The inputs and outputs connections to the board are terminal blocks, which allow for easy wired connections. The EVM is rated for a load up to 500-VDC/350-VRMS and 4 A. The board contains multiple test points to monitor the TPSI3050-Q1 functionality. In addition, the EVM contains a 3.3-V LDO to supply VDDP from a battery to the input of the TPSI3050-Q1 with an output of 3.3 V. The EVM allows the user to test multiple applications, such as AC/DC Solid State Relay (SSR), battery management, and precharge circuits.

  • Caution
  • Do not leave EVM powered when unattended

  • Caution
  • Read the user's guide before use
  • Caution
  • Caution hot surface
  • Contact can cause burns
  • Do not touch!
  • Danger
  • Do not use EVM to test Isolation above VIOWM = 1414-VDC
  • High voltage