SLVAEJ1 January   2020 TPS25830-Q1 , TPS25830A-Q1 , TPS25831-Q1 , TPS25832-Q1 , TPS25833-Q1 , TPS25840-Q1 , TPS25842-Q1

 

  1.   Loop Characteristic Evaluation and Optimization of TPS2583x-Q1
    1. 1 Introduction
      1. 1.1 Loop Introduction of TPS2583x-Q1
    2. 2 Loop Test Method of TPS2583x-Q1
      1. 2.1 Test the Loop Characteristics Without Cable Compensation Function
      2. 2.2 Evaluating Loop Characteristics With Cable Compensation Function
    3. 3 How to improve the loop characteristic of TPS2583x-Q1
    4. 4 Summary
    5. 5 References

Loop Characteristic Evaluation and Optimization of TPS2583x-Q1

TPS2583x-Q1 is a high integrated USB Type-C and BC1.2 charging port controller that includes a synchronous DC/DC converter. With cable droop compensation, the VBUS voltage remains constant regardless of load current, ensuring connected portable devices are charged at optimal current and voltage. Because the output of USB Type-C and BC1.2 is based on the 5 V, the voltage feedback resistors are integrated in the IC; also due to voltage compensation circuit, it is difficult to test and evaluate the loop characteristics of the system. This application report is mainly about TPS2583x-Q1 Loop Characteristic Evaluation and Design. The test hardware in this application report is based on http://www.ti.com/tool/TPS25831Q1EVM-062.