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

6 Pin Configuration and Functions

DBV Package
6-Pin SOT-23
Top View

Pin Functions

NAME NO. I/O DESCRIPTION
GND 5 — Ground
OUT1 2 O OUT1 is the output for SENSE1. OUT1 is asserted (driven low) when the voltage at SENSE1 falls below VIT–. OUT1 is deasserted (goes high) after SENSE1 rises higher than VIT+.
OUT1 is a push-pull output for the TPS3779-Q1 and an open-drain output for the TPS3780-Q1.
The open-drain device (TPS3780-Q1) can be pulled up to 5.5 V independent of VDD; a pullup resistor is required for this device.
OUT2 3 O OUT2 is the output for SENSE2. OUT2 is asserted (driven low) when the voltage at SENSE2 falls below VIT–. OUT2 is deasserted (goes high) after SENSE2 rises higher than VIT+.
OUT2 is a push-pull output for the TPS3779-Q1 and an open-drain output for the TPS3780-Q1.
The open-drain device (TPS3780-Q1) can be pulled up to 5.5 V independent of VDD; a pullup resistor is required for this device.
SENSE1 6 I This pin is connected to the voltage to be monitored with the use of an external resistor divider.
When the voltage at this pin drops below the threshold voltage (VIT–), OUT1 is asserted.
SENSE2 4 I This pin is connected to the voltage to be monitored with the use of an external resistor divider.
When the voltage at this pin drops below the threshold voltage (VIT–), OUT2 is asserted.
VDD 1 I Supply voltage input. Connect a 1.5-V to 5.5-V supply to VDD in order to power the device. Good analog design practice is to place a 0.1-µF ceramic capacitor close to this pin (required for VDD < 1.5 V).