SNVSBS9C March   2021  – May 2024 TPS3704-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Nomenclature
  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 Timing Requirements
    7. 6.7 Timing Diagrams
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 VDD
      2. 7.3.2 SENSEx Input
        1. 7.3.2.1 Immunity to SENSEx Pins Voltage Transients
          1. 7.3.2.1.1 SENSEx Hysteresis
      3. 7.3.3 RESETx/RESETx
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation (VDD > VDD(MIN))
      2. 7.4.2 Undervoltage Lockout (VPOR < VDD < UVLO)
      3. 7.4.3 Power-On Reset (VDD < VPOR)
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Voltage Threshold Accuracy
      2. 8.1.2 Adjustable Voltage Thresholds
    2. 8.2 Typical Applications
      1. 8.2.1 Design 1: Multi-Rail Window Monitoring for Microcontroller Power Rails
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
      2. 8.2.2 Design 2: Manual Self-Test Option for Enhanced Functional Safety Use Cases
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Power Supply Guidelines
    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 Nomenclature
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.3 Application Curves

These application curves were taken with the TPS37044A7OHDDFRQ1 device on the TPS3704Q1EVM. Please see the TPS3704Q1EVM User Guide for more information.

TPS3704-Q1 TPS37044-Q1 SENSE1 Start-Up Function
VSENSE1 start up 0V to 3.3V, VDD = 3.3V, VRESET1 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-5 TPS37044-Q1 SENSE1 Start-Up Function
TPS3704-Q1 TPS37044-Q1 Overvoltage and Undervoltage Function
VSENSE1 ramp 0V to 3.75V, OV/UV Threshold = 3.3V (±8%), VSENSE2 = 1.8V, VDD = 3.3V, VRESET1 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-7 TPS37044-Q1 Overvoltage and Undervoltage Function
TPS3704-Q1 TPS37044-Q1 Overvoltage and Undervoltage Function
VSENSE3_4 ramp 0V to 1.5V, OV/UV Threshold = 1.15V (+7.5%, -5.5%), VDD = 3.3V, VRESET2 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-9 TPS37044-Q1 Overvoltage and Undervoltage Function
TPS3704-Q1 TPS37044-Q1 SENSE 1 and SENSE 2 Toggling
VSENSE1 toggling 0V to 3.3V [OV/UV Threshold = 3.3V (±8%)], VSENSE2 toggling from 0V to 1.8V [OV/UV
Threshold = 1.8V (+4%, -3.5%)], VDD = 3.3V,
VRESET1 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-11 TPS37044-Q1 SENSE 1 and
SENSE 2 Toggling
TPS3704-Q1 TPS37044-Q1 SENSE1 Push-Button Monitoring Function With Reset Time Delay
VSENSE1 = 3.3V, VSENSE1 = 0V via push-button for 1ms,
VDD = 3.3V, VRESET1 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-13 TPS37044-Q1 SENSE1 Push-Button Monitoring Function With Reset Time Delay
TPS3704-Q1 TPS37044-Q1VDD Start-Up Function
VDD start up 0V to 3.3V, VSENSE1 = 3.3V, VSENSE2 = 1.8V, VSENSE3_4 = 1.15V, VRESET1_2 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-6 TPS37044-Q1VDD Start-Up Function
TPS3704-Q1 TPS37044-Q1 Overvoltage and Undervoltage Function
VSENSE2 ramp 0V to 2V, OV/UV Threshold = 1.8V
(+4%, -3.5%), VSENSE1 = 3.3V, VDD = 3.3V,
VRESET1 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-8 TPS37044-Q1 Overvoltage and Undervoltage Function
TPS3704-Q1 TPS37044-Q1VDD Ramp-Up Function
VDD ramp 0V to 5V, VSENSE3_4 = 1.2V, VRESET2 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-10 TPS37044-Q1VDD Ramp-Up Function
TPS3704-Q1 TPS37044-Q1 SENSE 3 and SENSE 4 Toggling
VSENSE3 toggling 0V to 1.15V [OV/UV Threshold = 1.15V (+7.5%, -5.5%)], VSENSE4 toggling from 0V to 1.15V
[OV/UV Threshold = 1.15V (+7.5%, -5.5%)], VDD = 3.3V,
VRESET1 = 3.3V, TPS37044A7OHDDFRQ1
Figure 8-12 TPS37044-Q1 SENSE 3 and
SENSE 4 Toggling
TPS3704-Q1 TPS37044-Q1 SENSE1 Propagation Delay Function
VSENSE1 toggling from 3.3V to 0V, VDD = 3.3V, VRESET1 toggling from 3.3V to 0V, TPS37044A7OHDDFRQ1
Figure 8-14 TPS37044-Q1 SENSE1
Propagation Delay Function