SPRUJE8C December   2024  – June 2025 AM2752-Q1 , AM2754-Q1

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Preface Read This First
      1. 1.2.1 Important Usage Notes
    3. 1.3 Kit Contents
    4. 1.4 Device Information
      1. 1.4.1 Security
    5. 1.5 Audio Expansion Connectors
  6. 2Hardware
    1. 2.1  Component Identification
    2. 2.2  Power Requirements
      1. 2.2.1 Power Input Using USB Type-C Connector
      2. 2.2.2 Power Status LEDs
      3. 2.2.3 Power Tree
      4. 2.2.4 Power Sequence
      5. 2.2.5 PMIC
    3. 2.3  Reset
    4. 2.4  Clock
    5. 2.5  Boot Mode Selection
    6. 2.6  Header Information
    7. 2.7  Push Buttons
    8. 2.8  Switches
    9. 2.9  GPIO Mapping
    10. 2.10 Interfaces
      1. 2.10.1  Memory Interface
        1. 2.10.1.1 OSPI Interface
        2. 2.10.1.2 Board ID EEPROM
        3. 2.10.1.3 MMC0 Interface
        4. 2.10.1.4 HYPERRAM
      2. 2.10.2  Ethernet Interface
        1. 2.10.2.1 Ethernet Add-on Connectors
      3. 2.10.3  Audio Interfaces
        1. 2.10.3.1 Audio Clocking
        2. 2.10.3.2 McASP
        3. 2.10.3.3 MLB
      4. 2.10.4  I2C Interface
      5. 2.10.5  SPI
      6. 2.10.6  UART
      7. 2.10.7  MCAN
      8. 2.10.8  JTAG
      9. 2.10.9  USB
      10. 2.10.10 ADC
    11. 2.11 AEC Mapping
      1. 2.11.1 Audio Expansion Connector 1
      2. 2.11.2 Audio Expansion Connector 2
    12. 2.12 Test Points
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 If You need Assistance
    2. 4.2 Trademarks
    3. 4.3 Rev. E2 Design Changes
  9. 5References
    1. 5.1 Reference Documents
    2. 5.2 Other TI Components Used This Design
  10. 6Revision History

2.2.5 PMIC

The AM275x EVM makes use of a Burton multirail power management IC (PMIC) (TPS6522435RAHRQ1). The PMIC integrates multiple supply rails to power the MCU, and other on-board peripherals.

AM2754, AM2754-Q1, AM2752, AM2752-Q1 PMIC Figure 2-7 PMIC

An independent voltage monitoring unit inside the PMIC monitors undervoltage and overvoltage on all internal supply rails and regulator outputs of the power delivery supply. All supplies are protected with current limiting and overtemperature warning and shutdown.

The PMIC features multiple GPIO pins which serve as boot pins and various interfaces post-boot.

Table 2-2 shows the functions, boot configuration and default states of the GPIOs:

Table 2-2 PMIC GPIOs
GPIOx Function Boot Configuration
GPIO1 I2C SDA Wake-up N/A
GPIO2 I2C SCL Wake-up N/A
GPIO3 Push Button for Buck1/2 voltage Populated External pull-up to 1.8V: VDD_CORE = 0.85V (DEFAULT)
Non-populated External pull-up to 1.8V: VDD_CORE= 0.75V
GPIO4 PMIC Sleep signal (nSLEEP) N/A
GPIO5 SD card or eMMC I/O voltage select Digital high: 1.8V LDO2 output (SW9 OFF)
Digital Low: 3.3V LDO2 output (SW9 ON)
GPIO6 Watchdog timeout Enable/Disable Populated External pull-up to 1.8V: Watchdog Timer disabled (DEFAULT)
Non-populated External pull-up to 1.8V: Watchdog timeout enabled