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  • TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor

    • SBVS193D June   2012  – July 2015 TPS3831 , TPS3839

      PRODUCTION DATA.  

  • CONTENTS
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  • TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor
  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
  14. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • DQN|4
    • MPSS021E
  • DBZ|3
    • MPDS108G
Thermal pad, mechanical data (Package|Pins)
  • DQN|4
    • QFND355C
Orderable Information
  • sbvs193d_oa
  • sbvs193d_pm
search No matches found.
  • Full reading width
    • Full reading width
    • Comfortable reading width
    • Expanded reading width
  • Card for each section
  • Card with all content

 

DATA SHEET

TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor

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

4 Revision History

Changes from C Revision (February 2015) to D Revision

  • Changed µA to nA in document titleGo
  • Added TPS3839G25 to document Go
  • Changed Applications section: moved Metering bullet to second in list, changed Tablets bullet, added Wearables bulletGo
  • Changed first paragraph of Description section Go
  • Changed Device Information table: changed Package Size column heading and value of SOT-23 row Go
  • Added TPS3839G25 row to Device Options table Go
  • Changed Thermal Information table Go
  • Changed VIT– and Vhys parameters in Electrical Characteristics table: changed test conditions, added TPS3839G25 rowsGo

Changes from B Revision (April 2013) to C Revision

  • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go
  • Changed title of data sheet Go
  • Changed Operating Supply Voltage bullet from 0.6 V to 0.9 VGo
  • Changed last sentence of Description section Go
  • Changed front page figure Go
  • Added MR parameter to Absolute Maximum RatingsGo
  • Changed condition statement for Electrical CharacteristicsGo
  • Changed V(VO) parameter symbol to VPORGo
  • Changed Figure 1Go
  • Changed Functional Block Diagram; added hysteresis symbol to op ampGo
  • Deleted Typical Application Circuit figureGo

Changes from A Revision (September 2012) to B Revision

  • Changed VDD test conditions for high-level output voltage parameterGo

Changes from * Revision (June 2012) to A Revision

  • Changed data sheet status from product preview to production dataGo

5 Device Options

PRODUCT THRESHOLD
VOLTAGE (V)		 PACKAGE-LEAD PACKAGE
DESIGNATOR(1)
TPS3831A09 0.9 X2SON-4 DQN
TPS3831G12 1.1 X2SON-4 DQN
TPS3831E16 1.52 X2SON-4 DQN
TPS3831G18 1.67 X2SON-4 DQN
TPS3831L30 2.63 X2SON-4 DQN
TPS3831K33 2.93 X2SON-4 DQN
TPS3831G33 3.08 X2SON-4 DQN
TPS3831K50 4.38 X2SON-4 DQN
TPS3839A09 0.9 SOT23-3 DBZ
X2SON-4 DQN
TPS3839G12 1.1 SOT23-3 DBZ
X2SON-4 DQN
TPS3839E16 1.52 SOT23-3 DBZ
X2SON-4 DQN
TPS3839G18 1.67 SOT23-3 DBZ
X2SON-4 DQN
TPS3839G25 2.325 SOT23-3 DBZ
TPS3839L30 2.63 SOT23-3 DBZ
X2SON-4 DQN
TPS3839K33 2.93 SOT23-3 DBZ
X2SON-4 DQN
TPS3839G33 3.08 SOT23-3 DBZ
X2SON-4 DQN
TPS3839K50 4.38 SOT23-3 DBZ
X2SON-4 DQN
(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or visit the device product folder at www.ti.com.

6 Pin Configuration and Functions

TPS3831 DQN Package
1-mm × 1-mm X2SON
Top View
TPS3831 TPS3839 po_dqn_3831_bvs193.gif
TPS3839 DQN Package
1-mm × 1-mm X2SON
Top View
TPS3831 TPS3839 po_dqn_bvs193.gif
TPS3839 DBZ Package
SOT23-3
Top View
TPS3831 TPS3839 po_dbz_bvs193.gif

Pin Functions

PIN I/O DESCRIPTION
NAME NO.
TPS3839
(SOT23-3)		 TPS3839
(X2SON)		 TPS3831
(X2SON)
GND 1 3 3 — Ground
MR N/A N/A 2 I Manual reset. Pull this pin to a logic low to assert the RESET output. After the MR pin is deasserted, the RESET output deasserts after the reset delay (td) elapses.
NC N/A 2 N/A — No internal connection.
RESET 2 1 1 O Active-low reset output. RESET has a push-pull output drive and is capable of directly driving input pins. RESET is low as long as VDD remains below the factory threshold voltage, and until the delay time (td) elapses after VDD rises above the threshold voltage.
Thermal pad N/A Available Available — Connect to ground or to a floating copper plane for mechanical stability.
VDD 3 4 4 I Supply voltage

 
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