SLVS165O April   1998  – March 2025 TPS3820 , TPS3823 , TPS3824 , TPS3825 , TPS3828

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  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  Electrical Characteristics for TPS3823A-33 only
    7. 6.7  Timing Requirements
    8. 6.8  Switching Characteristics
    9. 6.9  Timing Diagram
    10. 6.10 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 Manual Reset (MR)
      2. 7.3.2 Active-High or Active-Low Output
      3. 7.3.3 Push-Pull or Open-Drain Output
      4. 7.3.4 Watchdog Timer (WDI)
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Supply Rail Monitoring With Watchdog Time-Out and 200ms Delay
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Decoupling WDI During Reset Event
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    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 Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 Spice Models
      2. 9.1.2 Device Nomenclature
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    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

6.8 Switching Characteristics

at RL = 1MΩ, CL = 50pF and TA = 25℃, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
ttout Watchdog time out TPS3820 VDD ≥ VIT– + 0.2V, See timing diagram 112 200 300 ms
TPS3823/4/8, TPS3823A 0.9 1.6 2.5 s
td Delay time TPS3820 VDD ≥ VIT– + 0.2V, See timing diagram 15 25 37 ms
TPS3823/4/5/8, TPS3823A 120 200 300
tPHL Propagation delay time, high-to-low output MR to RESET delay (TPS3820/3/5/8, TPS3823A) VDD ≥ VIT– + 0.2V, VIL = 0.3 x VDD, VIH = 0.7 x VDD 0.1 µs
VDD to RESET delay VIL = VIT– – 0.2V, VIH = VIT– + 0.2V 25 µs
tPLH Propagation delay time, low-to-high output MR to RESET delay (TPS3824/5) VDD ≥ VIT– + 0.2V, VIL = 0.3 x VDD, VIH = 0.7 x VDD 0.1 µs
VDD to RESET delay (TPS3824/5) VIL = VIT– – 0.2V, VIH = VIT– + 0.2V 25 µs