SBVS105F September   2009  – October 2018 TPS386000 , TPS386040

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      TPS386000 Typical Application Circuit: Monitoring Supplies for an FPGA
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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 Switching Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Voltage Monitoring
      2. 8.3.2 Manual Reset
      3. 8.3.3 Watchdog Timer
      4. 8.3.4 Reset Output
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Undervoltage Detection
      2. 9.1.2 Undervoltage and Overvoltage Detection
      3. 9.1.3 Sensing a Negative Voltage
      4. 9.1.4 Reset Delay Time
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
        1. 12.1.1.1 Evaluation Modules
        2. 12.1.1.2 Spice Models
      2. 12.1.2 Device Nomenclature
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

9.1.2 Undervoltage and Overvoltage Detection

The comparator at the SENSE4H pin has the opposite comparison polarity to the other SENSEm pins. In the configuration shown in Figure 32, this comparator monitors overvoltage of the VMON(4) node; combined with the comparator at SENSE4L, SVS-4 forms a window comparator.

Equation 4. VMON(4, UV) = {1+ RS4H/(RS4M + RS4L)} × 0.4 (V)
Equation 5. VMON(4, OV) = {1+ (RS4H + RS4M)/RS4L} × 0.4 (V)

where

  • VMON(4, UV) is the undervoltage threshold.
  • VMON(4, OV) is the overvoltage threshold.
TPS386000 TPS386040 ai_window_comp_bvs105.gifFigure 32. SVS-4: Window Comparator
TPS386000 TPS386040 ai_window_comparator_bvs105.gifFigure 33. Window Comparator Operation