SBVS273A June   2016  – September 2016 TPS3779-Q1 , TPS3780-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  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 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Inputs (SENSE1, SENSE2)
      2. 8.3.2 Outputs (OUT1, OUT2)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation (VDD ≥ VDD(min))
      2. 8.4.2 Power-On-Reset (VDD < V(POR))
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Threshold Overdrive
      2. 9.1.2 Sense Resistor Divider
    2. 9.2 Typical Applications
      1. 9.2.1 Monitoring Two Separate Rails
        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 Early Warning Detection
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 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 Device Support
      1. 12.1.1 Development Support
        1. 12.1.1.1 Evaluation Modules
        2. 12.1.1.2 Spice Models
      2. 12.1.2 Device Nomenclature
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Related Links
    5. 12.5 Community Resources
    6. 12.6 Trademarks
    7. 12.7 Electrostatic Discharge Caution
    8. 12.8 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Two-Channel Detectors in Small Packages
  • High-Accuracy Threshold and Hysteresis: 1.0%
  • Low Quiescent Current: 2 µA (typ)
  • Adjustable Detection Voltage Down to 1.2 V
  • 5% and 10% Hysteresis Options
  • Temperature Range: –40°C to +125°C
  • Push-Pull (TPS3779-Q1) and Open-Drain (TPS3780-Q1) Output Options
  • Available in an SOT-23 Package

2 Applications

  • DSPs, Microcontrollers, and Microprocessors
  • Advanced Driver Assistance Systems (ADAS)
  • Infotainment and Clusters
  • Power-Supply Sequencing Applications

3 Description

The TPS3779-Q1 and TPS3780-Q1 are a family of high-accuracy, two-channel voltage detectors featuring low power and small solution size. The SENSE1 and SENSE2 inputs include hysteresis to reject brief glitches, thus ensuring stable output operation without false triggering. This device family offers different factory-set hysteresis options of 5% or 10%.

The TPS3779-Q1 and TPS3780-Q1 have adjustable SENSEx inputs that can be configured by an external resistor divider. When the voltage at the SENSE1 or SENSE2 input goes below the falling threshold, OUT1 or OUT2 is driven low, respectively. When SENSE1 or SENSE2 rises above the rising threshold, OUT1 or OUT2 goes high, respectively.

The devices have a very low quiescent current of 2 µA (typical) and provide a precise, space-conscious solution for voltage detection suitable for low-power, system-monitoring, and portable applications. The TPS3779-Q1 and TPS3780-Q1 operate from 1.5 V to 5.5 V, over the –40°C to +125°C temperature range.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS37xx-Q1 SOT-23 (6) 2.90 mm × 1.60 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Sense Threshold (VIT+) Deviation versus Temperature

TPS3779-Q1 TPS3780-Q1 D002_SBVS273.gif

Typical Schematic

TPS3779-Q1 TPS3780-Q1 typ_app_sbvs273.gif