SNVU935 March   2025 LM251772

 

  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 Connector, Test Point, and Selection Switch Descriptions
    1. 2.1 Connector Descriptions
    2. 2.2 Jumper Descriptions
    3. 2.3 Test Point Descriptions
  9. 3Implementation Results
    1. 3.1 Test Setup
    2. 3.2 Test Procedure
    3. 3.3 Precautions
    4. 3.4 Test Data and Performance Curves
      1. 3.4.1 Thermal Performance
      2. 3.4.2 Efficiency
      3. 3.4.3 Steady State Waveforms
      4. 3.4.4 Step Load Response
      5. 3.4.5 AC Loop Response Curves
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 Board Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1.     Trademarks

2.1 Connector Descriptions

Table 2-1 Connectors
Reference DesignatorDescription
J1Output voltage positive connection
J2Input voltage positive connection
J3Input voltage positive and input voltage return test point
J4Output voltage positive and output voltage return test point
J5Output voltage return connection
J6Input voltage return connection
J7USB-PD controller EVM control connector
J9USB-PD controller EVM power in connector
J10USB-PD controller EVM power out connector
J11

CDC output connection

J12

I2C / USB2ANY connector

(Not used for the LM25177222)

Table 2-2 USB-PD controller EVM control connector: J7

Pin

FunctionPinFunction

1

CDC: Current monitor signal

2

PTC: Temp sensor

3

PDCTRL_GOOD: Temp sensor supply

4

nFLT signal

5

EN/UVLO signal

6

I2C: SDA

7

GND

8

I2C: SCL

9

VCC1 (Connected via Jumper JP12)

10

GND