SNVSCB5B March   2022  – May 2025 TPS388R0-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 I2C
      2. 7.3.2 Auto Mask (AMSK)
      3. 7.3.3 PEC
      4. 7.3.4 VDD
      5. 7.3.5 MON
      6. 7.3.6 NIRQ
      7. 7.3.7 NRST
    4. 7.4 Device Functional Modes
      1. 7.4.1 Built-In Self Test and Configuration Load
        1. 7.4.1.1 Notes on BIST Execution
      2. 7.4.2 TPS38800-Q1 Power ON
      3. 7.4.3 General Monitoring
        1. 7.4.3.1 IDLE Monitoring
        2. 7.4.3.2 ACTIVE Monitoring
        3. 7.4.3.3 Sequence Monitoring 1
          1. 7.4.3.3.1 ACT Transitions 0→1
          2. 7.4.3.3.2 SLEEP Transition 1→0
          3. 7.4.3.3.3 SLEEP Transition 0→1
        4. 7.4.3.4 Sequence Monitoring 2
          1. 7.4.3.4.1 ACT Transition 1→0
    5. 7.5 Register Maps
      1. 7.5.1 Registers Overview
        1. 7.5.1.1 BANK0 Registers
        2. 7.5.1.2 BANK1 Registers
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Multichannel Sequencer and Monitor
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
      4. 8.2.4 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Power Supply Guidelines
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Nomenclature
    2. 9.2 Documentation Support
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.3.2 Auto Mask (AMSK)

In the case of power up AMSK_ON and AMSK_EXS registers apply. TPS38800-Q1/TPS388R0-Q1 masks interrupts till the MON voltage crosses the MON's OFF threshold or sequence timeout expires whichever is sooner. In the case of power down AMSK_OFF and AMSK_ENS registers apply. Interrupts are masked till the MON voltage is below the OFF threshold.

Table 7-2 summarizes the auto-mask operation for the ACT and SLEEP transitions.

Table 7-2 Transition Table
TRANSITION AUTO-MASK APPLIED AUTO-MASK APPLIES TO AUTO-MASK INACTIVE INTERRUPTS ACTIVE FOR MON CHANNELS NOT IN AUTO-MASK
ACT (Low -> High) AMSK_ON IEN_UVHF, IEN_OVHF SEQ_TOUT expires or rail crosses MON's OFF threshold At ACT=High
ACT (High -> Low) AMSK_OFF Auto-mask active in transition till SEQ_TOUT expires Until SEQ_TOUT expires
SLEEP (Low -> High) ACT = High AMSK_EXS SEQ_TOUT expires or rail crosses MON's OFF threshold Always active
SLEEP (High -> Low) ACT = High AMSK_ENS Auto-mask active Always active