SLVUCI2 march   2023 AM68A , AM69 , AM69A , TDA4AH-Q1 , TDA4AL-Q1 , TDA4AP-Q1 , TDA4VE-Q1 , TDA4VH-Q1 , TDA4VL-Q1 , TDA4VP-Q1 , TPS6594-Q1

 

  1.   TPS6594133A-Q1 PMIC User Guide for Jacinto J784S4 or J721S2, PDN-3A, PDN-3B, PDN-3F
  2.   Trademarks
  3. 1Introduction
  4. 2Processor Connections
    1. 2.1 Power Mapping
    2. 2.2 Control Mapping
  5. 3Supporting Functional Safety Systems
    1. 3.1 Achieving ASIL-B System Requirements
    2. 3.2 Achieving up to ASIL-D System Requirements
  6. 4Static NVM Settings.
    1. 4.1  Application-Based Configuration Settings
    2. 4.2  Device Identification Settings
    3. 4.3  BUCK Settings
    4. 4.4  LDO Settings
    5. 4.5  VCCA Settings
    6. 4.6  GPIO Settings
    7. 4.7  Finite State Machine (FSM) Settings
    8. 4.8  Interrupt Settings
    9. 4.9  POWERGOOD Settings
    10. 4.10 Miscellaneous Settings
    11. 4.11 Interface Settings
    12. 4.12 Multi-Device Settings
    13. 4.13 Watchdog Settings
  7. 5Pre-Configurable Finite State Machine (PFSM) Settings
    1. 5.1 Configured States
    2. 5.2 PFSM Triggers
    3. 5.3 Power Sequences
      1. 5.3.1 TO_SAFE_SEVERE and TO_SAFE
      2. 5.3.2 TO_SAFE_ORDERLY and TO_STANDBY
      3. 5.3.3 ACTIVE_TO_WARM
      4. 5.3.4 ESM_SOC_ERROR
      5. 5.3.5 PWR_SOC_ERROR
      6. 5.3.6 MCU_TO_WARM
      7. 5.3.7 TO_MCU
      8. 5.3.8 TO_ACTIVE
      9. 5.3.9 TO_RETENTION
  8. 6Application Examples
    1. 6.1 Initialization
    2. 6.2 Moving Between States; ACTIVE, MCU ONLY and RETENTION
      1. 6.2.1 ACTIVE
      2. 6.2.2 MCU ONLY
      3. 6.2.3 RETENTION
    3. 6.3 Entering and Exiting Standby
    4. 6.4 Entering and Existing LP_STANDBY
  9. 7References

3 Supporting Functional Safety Systems

By using the PDN-3A power solution, the system can leverage the following PMIC functional safety features:

  • Input Supply Monitoring
  • Output Voltage and Current Monitoring
  • Question and Answer Watchdog
  • Fault Reporting Interrupts
  • Enable Drive Pin that provides an independent path to disable system actuators
  • Error Pin Monitoring
  • Internal Diagnostics including voltage monitoring, temperature monitoring, and uilt-In Self-Test

Refer to the Safety Manual of the TPS6594133A for full descriptions and analysis of the PMIC functional safety features. These functional safety features can assist in achieving up to ASIL-D rating for a system. Additionally, these features help in achieving the functional safety assumptions utilized by the processor to achieve up to ASIL-D rating. See the Safety Manual for Jacinto™ 7 Processors for a complete list of functional safety system assumptions.