SNVSBS9B March   2021  – November 2023 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.

GUID-20210209-CA0I-FRWX-QBBR-SVPT1K247DJF-low.svg
VSENSE1 start up 0 V to 3.3 V, VDD = 3.3 V, VRESET1 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-5 TPS37044-Q1 SENSE1 Start-Up Function
GUID-20210209-CA0I-P9CD-XTVN-JV3TXP62NKMV-low.svg
VSENSE1 ramp 0 V to 3.75 V, OV/UV Threshold = 3.3 V (±8%), VSENSE2 = 1.8 V, VDD = 3.3 V, VRESET1 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-7 TPS37044-Q1 Overvoltage and Undervoltage Function
GUID-20210209-CA0I-BQGB-DJZZ-R60Z6W4CDGXL-low.svg
VSENSE3_4 ramp 0 V to 1.5 V, OV/UV Threshold = 1.15 V (+7.5%, -5.5%), VDD = 3.3 V, VRESET2 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-9 TPS37044-Q1 Overvoltage and Undervoltage Function
GUID-20210209-CA0I-CLV5-2FVV-9KRGK7RNDSPS-low.svg
VSENSE1 toggling 0 V to 3.3 V [OV/UV Threshold = 3.3 V (±8%)], VSENSE2 toggling from 0 V to 1.8 V [OV/UV
Threshold = 1.8 V (+4%, -3.5%)], VDD = 3.3 V,
VRESET1 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-11 TPS37044-Q1 SENSE 1 and
SENSE 2 Toggling
GUID-20210209-CA0I-CPMG-MQXJ-WNWPXVKDLTSX-low.svg
VSENSE1 = 3.3 V, VSENSE1 = 0 V via push-button for 1 ms,
VDD = 3.3 V, VRESET1 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-13 TPS37044-Q1 SENSE1 Push-Button Monitoring Function With Reset Time Delay
GUID-20210209-CA0I-XDTV-TTZ5-C2SDHZWWBNCD-low.svg
VDD start up 0 V to 3.3 V, VSENSE1 = 3.3 V, VSENSE2 = 1.8 V, VSENSE3_4 = 1.15 V, VRESET1_2 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-6 TPS37044-Q1 VDD Start-Up Function
GUID-20210209-CA0I-FPZ1-RGTV-KQKZ5CFKPFCG-low.svg
VSENSE2 ramp 0 V to 2 V, OV/UV Threshold = 1.8 V
(+4%, -3.5%), VSENSE1 = 3.3 V, VDD = 3.3 V,
VRESET1 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-8 TPS37044-Q1 Overvoltage and Undervoltage Function
GUID-20210209-CA0I-N3PZ-HP4X-KBM3TBGKLKBF-low.svg
VDD ramp 0 V to 5 V, VSENSE3_4 = 1.2 V, VRESET2 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-10 TPS37044-Q1 VDD Ramp-Up Function
GUID-20210209-CA0I-LRD7-TWC8-MHGCSTJCVMLX-low.svg
VSENSE3 toggling 0 V to 1.15 V [OV/UV Threshold = 1.15 V (+7.5%, -5.5%)], VSENSE4 toggling from 0 V to 1.15 V
[OV/UV Threshold = 1.15 V (+7.5%, -5.5%)], VDD = 3.3 V,
VRESET1 = 3.3 V, TPS37044A7OHDDFRQ1
Figure 8-12 TPS37044-Q1 SENSE 3 and
SENSE 4 Toggling
GUID-20210209-CA0I-G3VF-GLGZ-WCBGLGWVDM6Q-low.svg
VSENSE1 toggling from 3.3 V to 0 V, VDD = 3.3 V, VRESET1 toggling from 3.3 V to 0 V, TPS37044A7OHDDFRQ1
Figure 8-14 TPS37044-Q1 SENSE1
Propagation Delay Function