SGLS143D December   2002  – July 2019 TPS3820-Q1 , TPS3823-Q1 , TPS3824-Q1 , TPS3825-Q1 , TPS3828-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Schematic
      2.      Normalized Input Threshold Voltage vs Free-Air Temperature
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Manual Reset (MR)
      2. 8.3.2 Active High or Active Low Output
      3. 8.3.3 Push-Pull or Open-Drain Output
      4. 8.3.4 Watchdog Timer (WDI)
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Supply Rail Monitoring with Watchdog Time-out and 200-ms Delay
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Decoupling WDI During Reset Event
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
        1. 12.1.1.1 Related Links
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DBV|5
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.7 Switching Characteristics

At RL = 1 MΩ, CL = 50 pF, and TA = 25°C, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ttout Watchdog time out TPS3820-xx-Q1 VDD ≥ VIT− + 0.2 V
See Figure 1 		112 200 300 ms
TPS3823/4/8-xx-Q1 0.9 1.6 2.5 s
td Delay time TPS3820-xx-Q1 VDD ≥ VIT− + 0.2 V
See Figure 1 		15 25 37 ms
TPS3823/4/5/8-xx-Q1 120 200 300
tPHL Propagation (delay) time,
high-to-low-level output		 MR to RESET delay
(TPS3820/3/5/8-xx-Q1) 		VDD ≥ VIT− + 0.2 V,
VIL = 0.3 × VDD,
VIH = 0.7 × VDD 		0.1 µs
VDD to RESET delay VIL = VIT– – 0.2 V,
VIH = VIT– + 0.2 V		 25
tPLH Propagation (delay) time,
low-to-high-level output		 MR to RESET delay
(TPS3824/5-xx-Q1)		 VDD ≥ VIT− + 0.2 V,
VIL = 0.3 × VDD,
VIH = 0.7 × VDD 		0.1 µs
VDD to RESET delay
(TPS3824/5-xx-Q1)		 VIL = VIT– – 0.2 V,
VIH = VIT– + 0.2 V		 25
TPS3820-Q1 TPS3823-Q1 TPS3824-Q1 TPS3825-Q1 TPS3828-Q1 tim_lvs165.gifFigure 1. Delay and Time Out Timing Diagram