SNVSBZ2C March   2021  – September 2022 TPS3704

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Nomenclature
  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 Timing Diagrams
    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 VDD
      2. 8.3.2 SENSEx Input
        1. 8.3.2.1 Immunity to SENSEx Pins Voltage Transients
          1. 8.3.2.1.1 SENSEx Hysteresis
      3. 8.3.3 RESETx/RESETx
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation (VDD > VDD(MIN))
      2. 8.4.2 Undervoltage Lockout (VPOR < VDD < UVLO)
      3. 8.4.3 Power-On Reset (VDD < VPOR)
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Voltage Threshold Accuracy
      2. 9.1.2 Adjustable Voltage Thresholds
    2. 9.2 Typical Application
      1. 9.2.1 Design 1: Multi-Rail Window Monitoring for Microcontroller Power Rails
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
      2. 9.2.2 Design 2: Manual Self-Test Option for Enhanced Functional Safety Use Cases
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Guidelines
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Nomenclature
    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

1 Features

  • Designed for high performance and safety:
    • Input current (4 channels): IDD = 15 μA (maximum)
    • High threshold accuracy: ±1% (maximum)
    • Built-in precision hysteresis:
      VHYS (VIT > 800 mV) = 0.75% (typical)
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid IEC 61508 system design
    • Systematic capability up to SIL 3
    • Hardware capability up to SIL 1
    • Self test - manual setup
  • Designed for a wide range of applications:
    • Quad, triple, dual, or single voltage supervisor
      • TPS37044, 3, 2, 1: 4, 3, 2, 1 - channels
    • Input voltage range, VDD = 1.7 V to 6 V
    • (UV / OV) threshold accuracy: ±0.1% (typical)
      • Each channel can be configured independently: window, UV, or OV
      • Window tolerance: ±3% to ±11%
        (can be programmed asymmetrical)
      • High threshold resolution:
        VIT ≤ 0.8 V: 20 mV steps
        VIT > 0.8 V: lower of 0.5% or 20 mV steps
      • VIT threshold voltages for each individual channel can be set independently
    • Push-button monitor on all channels
    • Reset time delay (tD): fixed time delay options
      • Options: 23-fixed time options ranging from
        20 µs (minimum) to 1200 ms (maximum)
    • Temperature range: –40°C to +125°C
  • Multiple output topologies:
    • TPS3704xxxO: open-drain, active-low (RESET)
    • TPS3704xxxL: push-pull, active-low (RESET)
    • TPS3704xxxH: push-pull, active-high (RESET)