SLVUBV5 May   2020 TPS2124

 

  1.   TPS2124 Evaluation Module
    1.     Trademarks
    2. 1 Introduction
      1. 1.1 Features
      2. 1.2 Applications
      3. 1.3 Description
    3. 2 General Configurations
      1. 2.1 TPS2124 Configurations
    4. 3 Test Setup and Results
      1. 3.1 TPS2124EVM Test Equipment
      2. 3.2 Setting up the TPS2124EVM
    5. 4 Board Layout
    6. 5 Schematic
    7. 6 Bill of Materials
  2.   Revision History

3.2 Setting up the TPS2124EVM

Make sure the TPS2124 evaluation board has default jumper settings as Table 5 shows.

Table 5. Default Jumper Settings for TPS2124 Evaluation Board

Input Connector Label Position
J1 PR1 (3.3 V) Install
J4 OV1 (3.3 V) Install
J9 J9 (12 V) Install
J12, J13 100 µF Install
J15 10 Ω Install
J18 SS (10 nF) Install
JP1 SEL Jump pins 1 and 2
JP2 PR1 Jump pins 2 and 3
JP3 ST Jump pins 2 and 3
JP4 ILIM Jump pins 2 and 3

The default jumper configuration sets the Internal Voltage Reference (VREF) configuration. Since the voltage on the priority pin is set for 3.3-V operation and SEL is grounded, the priority is given to VIN1. Therefore, VIN1 can be set to 3.3 V, and the device will prioritize VIN1 even if VIN2 is at a higher voltage. See the data sheet for more information regarding the configuration settings.