SLVS331I December   2000  – October 2021

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
    1.     6
  6. 6 Pin Configuration and 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 Dissipation Ratings
    9. 7.9 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 Input Voltage (VDD)
        1. 8.3.1.1 VDD Hysteresis
        2. 8.3.1.2 VDD Glitch Immunity
      2. 8.3.2 User-Programmable Watchdog Timer (WDI)
      3. 8.3.3 RESET Output
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation (VDD > VIT)
      2. 8.4.2 Above Power-On Reset But Less Than Threshold (VPOR < VDD < VIT)
      3. 8.4.3 Below Power-On Reset (VDD < VPOR)
    5. 8.5 Programming
      1. 8.5.1 Implementing Window-Watchdog Settings
      2. 8.5.2 Programmable Window-Watchdog by Using an External Capacitor
      3. 8.5.3 Lower Boundary Calculation
      4. 8.5.4 Watchdog Software Considerations
      5. 8.5.5 Power-Up Considerations
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Related Links
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

7.5 Electrical Characteristics

Over recommended operating free-air temperature range (unless otherwise noted).
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
VOLLow-level output voltageVDD = 2 V to 6 V, IOL = 500 µA0.2V
VDD = 3.3 V IOL = 2 mA0.4
VDD = 6 V, IOL = 4 mA0.4
VPORPower up reset voltage (1)VDD ≥ 1.1 V, IOL = 50 µA0.2V
VITNegative-going input threshold
voltage (2)		TPS3813J25TA = –40°C to +85°C2.22.252.3V
TPS3813L302.582.642.7
TPS3813K332.872.933
TPS3813I504.454.554.65
VHYSHysteresisTPS3813J2530mV
TPS3813L3035
TPS3813K3340
TPS3813I5060
IIHHigh-level input currentWDI, WDRWDI = VDD = 6 V, WDR = VDD = 6 V–2525nA
WDTWDT = VDD = 6 V, VDD > VIT, RESET = High–100100
IILLow-level input currentWDI, WDRWDI = 0 V, WDR = 0 V, VDD = 6 V–2525
WDTWDT = 0 V, VDD > VIT,RESET = High–100100
IOHHigh-level output currentVDD = VIT + 0.2 V, VOH = VDD25nA
IDDSupply currentVDD = 2-V output unconnected913µA
VDD = 5-V output unconnected2025
CiInput capacitanceVI = 0 V to VDD5pF
(1) The lowest supply voltage at which RESET becomes active. tr, VDD ≥ 15 µs/V.
(2) To ensure best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1 µF) must be placed near to the supply terminals.