SLVUDS2 June   2026

 

  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 Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Overview
    2. 2.2 TPS7B780x-Q1
      1. 2.2.1 TPS7B780x-Q1 Jumpers
      2. 2.2.2 TPS7B780x-Q1 Interfaces
    3. 2.3 Pullup Regulator
      1. 2.3.1 Pullup Regulator Jumpers
    4. 2.4 USB-to-I2C Adapter
      1. 2.4.1 USB-to-I2C Adapter Jumpers
      2. 2.4.2 USB-to-I2C Adapter Interfaces
      3. 2.4.3 USB-to-I2C Adapter LEDs
      4. 2.4.4 USB-to-I2C Adapter BSL Pushbutton
    5. 2.5 Load Transient Circuit
      1. 2.5.1 Using the Load Transient Circuit
      2. 2.5.2 Load Transient Circuit Interfaces
    6. 2.6 EVM Setup
    7. 2.7 Test Points
    8. 2.8 Required Equipment for Basic Evaluation
  9. 3Software
    1. 3.1 Software Download
      1. 3.1.1 Live Software on dev.ti.com
      2. 3.1.2 Offline Software
        1. 3.1.2.1 Download From dev.ti.com
    2. 3.2 Home Tab
    3. 3.3 Quick Setup Tab
    4. 3.4 Monitor Tab - Dashboard Page
    5. 3.5 Monitor Tab - Configure Page
    6. 3.6 ADC Graph Tab
    7. 3.7 Registers Tab
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks

1.3 Specifications

The TPS7B78EVM-131 is intended to support basic functional evaluation of the device. The EVM can be used for AC, DC, and transient measurements, as well as to evaluate I2C communication with the TPS7B780x-Q1. The layout is designed to showcase the transient performance of the device and optimize thermal performance and heat dissipation.

Table 1-2 defines the absolute maximum thermal conditions for the EVM. These limits must be considered when evaluating the performance of the device at extreme temperatures.

Table 1-3 defines the power supply requirements for the EVM. To avoid damaging the EVM, do not exceed maximum voltage ratings.

Table 1-4 defines the output specifications for the two output channels of the EVM.

Table 1-2 Thermal Specifications
Conditions Recommended operating free-air temperature, TA TPS7B780x-Q1 Absolute maximum junction temperature, TJ
Onboard USB to I2C converter active (USB cable connected) -25°C to 85°C 150°C
Onboard USB to I2C converter not used (USB cable not connected) -25°C to 110°C 150°C
Table 1-3 Power Supply Specifications
Supply Name Nominal Voltage Voltage Range Maximum Input Current
VIN supply to TPS7B780x-Q1 12V 4.5V to 40V 600mA
VDD supply to onboard load transient circuit (1) 5V 4.75V to 5.4V 100mA
V_PU pullup supply for I2C bus and open-drain outputs (1) 3.3V 1.8V to 5.0V 25mA
(1) Optional power supply connection. See Section 2.6 for more information.
Table 1-4 Output Specifications
Output Name Voltage Range Maximum Load Current
VOUT1 2V to 39V (1) (2) 300mA
VOUT2 2V to 39V (1) (2) 300mA
(1) Maximum output voltage is limited by dropout voltage and VIN. Consult device data sheet for more information.
(2) Maximum output voltage is limited to 27.5V when TPS7B780x-Q1 is configured to use internal feedback. Consult device data sheet for more information