SLVUCU2 December   2023 TPS55289-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Modification
    2. 2.2 Connector, Test Point, and Jumper Descriptions
      1. 2.2.1 Connector and Test Point Descriptions
      2. 2.2.2 Jumper Configuration
        1. 2.2.2.1 JP1 (ENABLE)
        2. 2.2.2.2 JP6 (SYNC)
        3. 2.2.2.3 JP7 (I2C Target Address Selection)
        4. 2.2.2.4 JP8 (Internal or External VCC Selection)
        5. 2.2.2.5 JP9 and JP10 (External Feedback and Internal Feedback Selection)
    3. 2.3 Test Procedure
  9. 3Software
    1. 3.1 Software User Interface
      1. 3.1.1 Install USB2ANY Explorer
      2. 3.1.2 GUI Installation
      3. 3.1.3 Interface Hardware Setup
      4. 3.1.4 User Interface Operation
      5. 3.1.5 Register Map Screen
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1.     Trademarks

1.4 Device Information

The TPS55289-Q1 is a synchronous buck-boost converter which integrates four MOSFET switches, providing a compact device for a variety of applications, especially for USB Power Delivery (USB PD) application. The device has up to 36 V input voltage capability. Through the I2C interface, the output voltage can be programmed from 0.8V to 22 V with 10 mV step, and the output current limit can be programmed up to 6.35A with 50 mA step. The switching frequency is programmable from 200 kHz to 2.2 MHz by an external resistor and can be synchronized to an external clock. The spread spectrum function is optional to minimize peak EMI. The output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit, and output short circuit protection are provided. Refer to TPS55289-Q1 36-V, 8-A Buck-Boost Converter with I2C Interface Data Sheet for more detailed information of the TPS55289-Q1 fully integrated buck-boost converter.

The factory default settings of the TPS55289Q1EVM allow the operation with an input voltage range from 3 V to 36 V. Fine-tuning of the output voltage can be realized by adjusting the internal reference voltage and feedback ratio. In addition, users can modify the EVM to adjust the switching frequency by changing resistor value at the FSW pin. To meet the current ripple requirement, the inductor also needs to change according to the switching frequency, as well as the external compensation parameter to obtain enough phase margin and gain margin.