SNVSCH9 April   2025 TPS388C0-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
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
      1. 7.3.1 TPS388C0x-Q1 Power ON
      2. 7.3.2 Built-In Self Test and Configuration Load
        1. 7.3.2.1 Notes on BIST Execution
      3. 7.3.3 General Monitoring
        1. 7.3.3.1 ACTIVE Monitoring
    4. 7.4 Feature Description
      1. 7.4.1 VDD
      2. 7.4.2 Maskable Interrupt (AMSK)
      3. 7.4.3 MON
      4. 7.4.4 NRST
      5. 7.4.5 NIRQ
      6. 7.4.6 I2C
      7. 7.4.7 Packet Error Checking (PEC)
      8. 7.4.8 Window Watchdog
      9. 7.4.9 Window Watchdog Timer
    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 Automotive 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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.1 Automotive Multichannel Sequencer and Monitor

A typical application for the TPS388C0x-Q1 is shown in Figure 8-1. TPS388C0x-Q1 is used to provide the proper voltage monitoring for the target SOC device. A multichannel voltage monitor TPS388C0x-Q1 is used to monitor the voltage rails as these rails power up and power down to verify that the correct sequence occurs in both occasions. A safety microcontroller is also used to provide ACT, NIRQ, and I2C commands to the TPS388C0x-Q1 and sequencer. The ACT signal from the safety microcontroller determines when the TPS388C0x-Q1enters into ACTIVE or SHDN states while the NIRQ pin of the TPS388C0x-Q1 acts as an interrupt pin that is set when a fault has occurred. The host microcontroller can clear the fault by writing 1 to the affected register. The power rails for the safety microcontroller are not shown in TPS388C0-Q1 Voltage Monitor Design Block Diagram for simplicity.

TPS388C0-Q1 TPS388C0-Q1 Voltage Monitor Design Block Diagram Figure 8-1 TPS388C0-Q1 Voltage Monitor Design Block Diagram