SLVUCU6A November   2023  – October 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
    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 Connectors
      5. 2.2.5 Dip Switches
      6. 2.2.6 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
  11. 5Additional Information
    1.     Trademarks
  12. 6Related Documentation
  13. 7Revision History

2.2.6 EVM Control and GPIO

The EVM has a built-in USB interface based on the MSP432E401Y (U3) to allow the GUI, from the host computer, to communicate with the PMIC. The supply voltage required by the MSP432E401Y is generated automatically by the TLV73333PQDRVRQ1 (U11) and TLV73318PQDRVRQ1 (U12) LDOs, which provide 3.3 V and 1.8 V from USB power, +VBUS. These voltages are available for supplying VIO for the PMIC (selectable from J32). Two SN74GTL2003 level shifters (U4, U6) are used to support the use case of the PMIC VIO of 1.8 V (the MCU IO is always be 3.3 V). In addition to the level shifters, the TS3A5018RSVR (U8) switch is used to apply the pullup voltages to the I2C lines when SPI_EN is LOW (I2C is used). Additional TS3A5018RSVR (U9) switch is used for SPI enable/disable. The application of the pullup resistors is for I2C mode only.

The EVM has 5 LEDs to indicate board power, PMIC power and some pre-defined PMIC GPOs status. The signals are listed in Table 2-9. Since nINT and EN_DRV share the same pin on the TPS6522x there is a configuration jumper J19 to match the EVM and the PMIC configurations. This jumper selects if the nINT/EN_DRV pin is connected to D1 or D2.

Table 2-9 EVM LED Indicators
LED DesignatorIndication
D1LED is on when nINT is low.
D2LED is on when EN_DRV is high.
D3LED is on when nRSTOUT is low.
D5PMIC power indicator.
D6 EVM power indicator.