SNVSCN2A September   2024  – September 2025 TPS37100-Q1

PRODMIX  

  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 Switching Characteristics
    7. 6.7 Timing Requirements
    8. 6.8 Timing Diagrams
    9. 6.9 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Voltage (VDD)
        1. 7.3.1.1 Undervoltage Lockout (VPOR < VDD < UVLO)
        2. 7.3.1.2 Power-On Reset (VDD < VPOR )
      2. 7.3.2 SENSE
        1. 7.3.2.1 Adjustable Voltage Thresholds
        2. 7.3.2.2 SENSE Hysteresis
        3. 7.3.2.3 Reverse Polarity Protection
      3. 7.3.3 Output Logic Configurations
        1. 7.3.3.1 Open-Drain
        2. 7.3.3.2 Active-Low (OUT A and OUT B)
      4. 7.3.4 User-Programmable Release Time Delay
        1. 7.3.4.1 Deassertion Time Delay Configuration
      5. 7.3.5 User-Programmable Sense Delay
        1. 7.3.5.1 Sense Time Delay Configuration
      6. 7.3.6 Analog Out
      7. 7.3.7 Built-in Self-Test
        1. 7.3.7.1 Latch
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design 1: Off-Battery Monitoring
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Power Dissipation and Device Operation
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
      3. 8.4.3 Creepage Distance
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 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 Design 1: Off-Battery Monitoring

This application is intended for the initial power stage in applications with the 48V batteries. Variation of the battery voltage is common between 40V and 55V. Furthermore, load transients can cause voltage spikes up to 100V. In this design example, we are highlighting the ability for low power, direct off-battery voltage supervision with capabilities to handle 100V transients.

Figure 8-1 illustrates an example of how the TPS37100-Q1 is monitoring the battery voltage while being powered by the same rail.

TPS37100-Q1 TPS37102-Q1 TPS37100-Q1 Overvoltage Supervisor with Direct Off-Battery MonitoringFigure 8-1 TPS37100-Q1 Overvoltage Supervisor with Direct Off-Battery Monitoring