SBVS193D June   2012  – July 2015 TPS3831 , TPS3839

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Options
  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 Diagram
    3. 8.3 Feature Description
      1. 8.3.1 VDD Transient Rejection
      2. 8.3.2 Manual Reset (MR) Input (TPS3831 Only)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation (VDD > VDD(min))
      2. 8.4.2 Below VDD(min) (V(POR) < VDD < VDD(min)
      3. 8.4.3 Below Power-On Reset (VDD < V(POR)
  9. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Input Capacitor
        2. 9.2.2.2 Bidirectional Reset Pins
      3. 9.2.3 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. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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1 Features

  • Ultralow Supply Current: 150 nA (Typical)
  • Operating Supply Voltage: 0.9 V to 6.5 V
  • Valid Reset for VDD > 0.6 V
  • Push-Pull RESET Output
  • Factory-Trimmed Reset Threshold Voltages
  • Temperature Range: –40°C to 85°C
  • Packages: 1-mm × 1-mm X2SON or 3-Pin SOT23

2 Applications

  • Portable and Battery-Powered Equipment
  • Metering
  • Industrial Equipment
  • Cell Phones
  • Glucose Monitors
  • Tablets
  • Wearables

3 Description

The TPS3831 and TPS3839 devices (both referred to as TPS383x) are ultralow current (150 nA, typical), voltage supervisory circuits that monitor a single voltage. Both devices initiate an active-low reset signal whenever the VDD supply voltage drops below the factory-trimmed reset threshold voltage. The reset output remains low for 200 ms (typical) after the VDD voltage rises above the threshold voltage and hysteresis. These devices are designed to ignore fast transients on the VDD pin. The TPS3831 device includes a manual reset input that forces RESET low when MR is low.

The ultralow current consumption of 150 nA makes these voltage supervisors ideal for use in low-power and portable applications. The TPS383x devices are specified to have the correct output logic state for supply voltages down to 0.6 V.

The TPS383x devices feature precision factory-trimmed threshold voltages and extremely low-power operation. The TPS3831 device is available in a 4-pin, 1-mm × 1-mm (DQN) X2SON package. The TPS3839 device is available in a 3-pin SOT23 (DBZ) package or a 4-pin, 1-mm × 1-mm (DQN) X2SON package.

Device Information(1)

PART NUMBER PACKAGE PACKAGE SIZE (NOM)
TPS3831 X2SON (4) 1.00 mm x 1.00 mm
TPS3839 SOT-23 (3) 2.92 mm x 2.37 mm
X2SON (4) 1.00 mm x 1.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Circuit

TPS3831 TPS3839 typ_app_bvs193.gif

Supply Current vs Temperature

TPS3831 TPS3839 G001_SBVS193.png