SLVUCX5 May   2024

 

  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 Getting Started
      1. 2.1.1 Getting Started: Single EVM
      2. 2.1.2 Getting Started: Multiple EVM Evaluation
    2. 2.2 EVM Details
      1. 2.2.1 Terminal Blocks
      2. 2.2.2 Test Point Descriptions
      3. 2.2.3 Configuration Headers
      4. 2.2.4 Stack-up Headers
      5. 2.2.5 Connectors
      6. 2.2.6 Dip Switches
      7. 2.2.7 EVM Control and GPIO
    3. 2.3 Customization
      1. 2.3.1 Changing the Communication Interface
      2. 2.3.2 Changing the Phase Configuration
  9. 3Software
    1. 3.1 GUI Tool
  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 Additional Resources
    2. 5.2 Trademarks

2.1.1 Getting Started: Single EVM

  1. Connect power to the EVM.
  2. Connect the EVM to the Host PC through the USB. If the power is provided by the USB cable, apply the appropriate jumper connection to connect EN_5V0 with 3.3V and VCCA with 5.0V, see Table 3-5.
  3. Launch the GUI and evaluate.

Terminal J9, labeled VCCA in Figure 3-1, can accept wire gauges up to 14 AWG. The voltage supplied must be within the input range of the device, 2.8V to 5.5V. The power supply providing the input to VCCA is required to supply 135 % of the output power. Once power has been supplied to VCCA, the GPIO4 / ENABLE jumper can be used to power on the output rails (in LP87694Q1EVM GPIO2 can be used to control BUCK4 after GPIO4 has been set high). The default ON Request for the controller device is the ENABLE pin which is a level sensitive input. Please refer to LP8769-Q1 High Frequency Quad Step-Down DC-DC for more details.

Figure 3-1 shows the LP8769x-Q1 EVM (controller).

LP87694Q1EVM EVM (Top View) Figure 2-1 EVM (Top View)