SLVUDQ2 March   2026

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Header Information
    3. 2.3 Jumper Information
    4. 2.4 Test Points
    5. 2.5 LED Information
    6. 2.6 Configuring the TPS25730AEVM
      1. 2.6.1 Minimum Voltage Configuration
      2. 2.6.2 Maximum Voltage Configuration
      3. 2.6.3 Sink Current Configuration
      4. 2.6.4 Complete Example
  8. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials (BOM)
  9. 4Additional Information
    1. 4.1 Trademarks

1.3 Specification

This section describes the applications for the TPS25730A device.

The TPS25730A device is a USB-PD controller that sinks power to the system through a USB-C® connector using the USB-PD specification, as shown in Figure 1-1. Electrically erasable programmable read-only memory (EEPROM) is not required because the power settings are configurable by voltage dividers at the ADCINx pins, which potentially reduces the bill of materials (BOM) cost and saves board space. Additionally, software and a graphical user interface (GUI) are not required, which potentially minimizes the development time.

When the ADCINx pins are configured to the desired settings, as described in Section 2.6, the TPS25730A device sinks the negotiated amount of power through the VSYS pin from a source compatible with USB-PD.

How this negotiation occurs is detailed in the Universal Serial Bus Power Delivery Specification. This specification is accessible at USB Power Delivery.

The following lists a quick overview of the guidelines outlined in the USB-PD specification:

  1. The USB-C cable is connected to a source that is plugged into the USB-C port of the TPS25730AEVM evaluation module.
  2. A 5V implicit USB Type-C® contract is established.
  3. The capabilities of the source are advertised as an ordered list to the sink through the CC line.
  4. The sink makes a request from the ordered list for a specific power data object (PDO) based on the settings of the ADCINx pin.
  5. The source accepts this request and sends a PS_Ready message to indicate that the bus is ready to deliver power.
  6. Power is delivered from the source through the VBUS line of the USB cable, through the power path controlled by the TPS25730A device and to the load through the VSYS pin.
TPS25730AEVM TPS25730AEVM Block Diagram Figure 1-1 TPS25730AEVM Block Diagram