SLVUDI2 September   2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Board Overview
    2. 2.2 Key Features
      1. 2.2.1 Processor
      2. 2.2.2 Memory and Storage
      3. 2.2.3 Interface and Peripherals
      4. 2.2.4 Expansion Connectors and Expansion Headers to Support Application-Specific Capes
    3. 2.3 Power Requirements
      1. 2.3.1 Integrated Power Architecture
      2. 2.3.2 Advanced Power Management Features
    4. 2.4 Header Information
      1. 2.4.1 Cape Expansion Headers
      2. 2.4.2 65 Possible Digital I/Os
      3. 2.4.3 PWMs and Timers
      4. 2.4.4 Analog Inputs
      5. 2.4.5 UART
      6. 2.4.6 I2C
      7. 2.4.7 SPI
    5. 2.5 Detailed Hardware Design
      1. 2.5.1 USB Interface
        1. 2.5.1.1 USB 2.0 Type-A Interface
        2. 2.5.1.2 USB 2.0 Type-C® Interface
      2. 2.5.2 Ethernet Interface
      3. 2.5.3 Power Supply Interface
      4. 2.5.4 DDR3L SDRAM Interface
      5. 2.5.5 eMMC Flash Interface
      6. 2.5.6 Micro SD Card Slot Interface
      7. 2.5.7 Grove Connector Interfaces
        1. 2.5.7.1 Grove I2C Interface (J4)
        2. 2.5.7.2 Grove UART Interface (J5)
  8. 3Hardware Design Files
    1. 3.1 Schematics, PCB Layout and BOM
  9. 4Compliance Information
    1. 4.1 Compliance – FCC Requirement
  10. 5Additional Information
    1. 5.1 Known Hardware or Software Issues
    2. 5.2 Trademarks
    3. 5.3 Brand Uses Approval
  11. 6Related Documentation

2.5.3 Power Supply Interface

BeagleBone Green Eco features a flexible power management architecture centered on the TPS65214 PMIC. The board is powered through the USB Type-C connector using a standard 5V USB power adapter or host computer.

The core power management is handled by the TPS65214 PMIC (specifically the PTPS6521403VAFR variant in a QFN-24 package), which generates multiple regulated voltage rails required by the AM335x processor. Buck1 (2A capacity) supplies 1.1V for the processor core (VDD_MPU), Buck2 (1A capacity) provides 1.1V for digital logic (VDD_CORE), and Buck3 (1A capacity) delivers 1.5V for DDR memory (VDDS_DDR).

Two integrated LDOs complement the switching regulators: LDO1 (300mA) supplies 1.8V for the various analog domains, while LDO2 (500mA) is dedicated to powering the VDDS pins.

The power design includes comprehensive protection features integrated within the TPS65214, including overcurrent protection, thermal shutdown, and short-circuit protection to provide reliable operation in various environments.

BEAGL-BONE-GRN-ECO Power Interface Block Diagram Figure 2-6 Power Interface Block Diagram
CAUTION: For RTC functionality, the board supports RTC, No RTC Only Mode, which is the default configuration. The configuration is implemented through resistors R175 and R4 as indicated in the design notes, with specific caution against installing both resistors simultaneously to prevent potential damage to the AM335x processor.