SPRUJ93 august   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1.     Preface: Read This First
      1. 1.1.1 Sitara™ MCU+ Academy
      2. 1.1.2 If You Need Assistance
      3. 1.1.3 Important Usage Notes
    2. 1.1 Introduction
    3. 1.2 Kit Contents
    4. 1.3 Specification
    5. 1.4 Device Information
    6. 1.5 HSEC 180-pin Control Card Docking Station
    7. 1.6 Security
  6. 2Hardware
    1. 2.1  Functional Block Diagram
    2. 2.2  Component Identification
    3. 2.3  Power Requirements
      1. 2.3.1 Power Input Using USB Type-C Connector
      2. 2.3.2 Power Status LEDs
      3. 2.3.3 Power Tree
      4. 2.3.4 Power Sequence
      5. 2.3.5 PMIC
    4. 2.4  Reset
    5. 2.5  Clock
    6. 2.6  Boot Mode Selection
    7. 2.7  JTAG Path Selection
    8. 2.8  Header Information
    9. 2.9  GPIO Mapping
    10. 2.10 Push Buttons
    11. 2.11 Test Points
    12. 2.12 Interfaces
      1. 2.12.1  Memory Interface
        1. 2.12.1.1 QSPI
        2. 2.12.1.2 Board ID EEPROM
      2. 2.12.2  Ethernet Interface
        1. 2.12.2.1 RGMII
        2. 2.12.2.2 PRU-ICSS
        3. 2.12.2.3 LED Indication in RJ45 Connector
      3. 2.12.3  I2C
      4. 2.12.4  Industrial Application LEDs
      5. 2.12.5  SPI
      6. 2.12.6  UART
      7. 2.12.7  MCAN
      8. 2.12.8  FSI
      9. 2.12.9  JTAG
      10. 2.12.10 Test Automation Header
      11. 2.12.11 LIN
      12. 2.12.12 MMC
      13. 2.12.13 ADC and DAC
    13. 2.13 HSEC Pinout and Pinmux Mapping
  7. 3Software
    1. 3.1 SDK Installation
  8. 4Hardware Design Files
  9. 5Additional Information
    1. 5.1 Trademarks
    2. 5.2 E1 Design Hardware Modifications
  10. 6References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design

2.3.5 PMIC

The TMDSCNCD263-PMIC makes use of a Multirail Power Supply for Microcontrollers in Safety-Relevant Applications (TPS3850QDCARQ1). The PMIC integrates multiple supply rails to power the MCU, CAN, and other on-board peripherals.

GUID-20230515-SS0I-T43H-BJT8-JLP7WLVWFHGK-low.png Figure 2-9 PMIC
Note: VSOUT1 and VSOUT2 are not powered on by default and requires a SPI write to enable the relevant supply rails.

The PMIC supports wake-up from an ignition signal (IGN) or wake-up from a CAN transceiver (CAN_WU).

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

For more information about the PMIC and features, refer to the PMIC Data Sheet.