Product details

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 0.9, 1.1, 1.52, 1.67, 2.325, 2.63, 2.93, 3.08, 4.38 Features Ease-of-use Reset threshold accuracy (%) 1.6 Output driver type/reset output Active-low, Push-pull Time delay (ms) 200 Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 85
Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 0.9, 1.1, 1.52, 1.67, 2.325, 2.63, 2.93, 3.08, 4.38 Features Ease-of-use Reset threshold accuracy (%) 1.6 Output driver type/reset output Active-low, Push-pull Time delay (ms) 200 Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 85
SOT-23 (DBZ) 3 7 mm² 2.92 x 2.37 X2SON (DQN) 4 1 mm² 1 x 1
  • 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
  • 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

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.

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.

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Similar products you might be interested in

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Pin-for-pin with same functionality to the compared device.
TLV809E ACTIVE Low-power voltage supervisor (reset IC) with active-low push-pull output TLV809E offers an alternative in a smaller 0.8-mm x 0.8-mm package.
TPS3831 ACTIVE 150-nA, ultra-low power, supply voltage monitor Offers a manual reset pin with similar specifications as the TPS3839.
Same functionality with different pin-out to the compared device.
TLV841 ACTIVE Ultra-low-voltage nanopower supervisor with adjustable release delay in wafer chip-scale package Offers similar functionality in industry smallest size 0.73-mm x 0.73-mm WCSP package.

Technical documentation

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Type Title Date
* Data sheet TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor datasheet (Rev. D) PDF | HTML 01 Jul 2015
Application note Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 17 Mar 2020
Selection guide Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) 28 Feb 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Technical article Tips and tricks for optimizing your voltage supervisor 07 Mar 2017
Application note Using Voltage Supervisor for Input Over-Voltage Protection in LED Drivers 20 May 2013
Application note Using the TPS3839/1yxx as an Adjustable Supply Voltage Supervisor 16 Aug 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS3839K33EVM-112 — TPS3839K33 Evaluation Module

The Texas Instruments TPS3839K33EVM-112 evaluation module (EVM) helps designers evaluate the performance of the TPS3839K33 Ultra-Low 150nA, Ultra-Small Voltage Supervisor. The EVM is a fully assembled, stand alone evaluation module containing an IC for a single voltage monitoring and header (...)
User guide: PDF
Not available on TI.com
Simulation model

TPS3839A09 Unencrypted PSpice Transient Model Package (Rev. A)

SBVM234A.ZIP (87 KB) - PSpice Model
Simulation model

TPS3839E16 Unencrypted PSpice Transient Model Package (Rev. A)

SBVM246A.ZIP (39 KB) - PSpice Model
Simulation model

TPS3839G12 Unencrypted PSpice Transient Model Package (Rev. A)

SBVM243A.ZIP (37 KB) - PSpice Model
Simulation model

TPS3839G18 Unencrypted PSpice Transient Model Package (Rev. A)

SBVM245A.ZIP (40 KB) - PSpice Model
Simulation model

TPS3839G25 PSpice Transient Model

SBVM519.ZIP (38 KB) - PSpice Model
Simulation model

TPS3839G25 Unencrypted PSpice Transient Model

SBVM520.ZIP (2 KB) - PSpice Model
Simulation model

TPS3839G33 Unencrypted PSpice Transient Model Package (Rev. A)

SBVM244A.ZIP (40 KB) - PSpice Model
Simulation model

TPS3839K33 Unencrypted PSpice Transient Model Package (Rev. A)

SBVM235A.ZIP (40 KB) - PSpice Model
Simulation model

TPS3839K50 Unencrypted PSpice Transient Model Package (Rev. A)

SBVM251A.ZIP (85 KB) - PSpice Model
Simulation model

TPS3839L30 Unencrypted PSpice Transient Model Package (Rev. A)

SBVM250A.ZIP (79 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

TIDA-00449 — 10s Battery Pack Monitoring, Balancing, and Comprehensive Protection. 50A Discharge Reference Design

This reference design is ready tested for 10 cells in series battery pack monitoring, balancing and protection for power tools. Power tools increasingly use highly power-dense Li-Ion or Li-Iron phosphate cells based battery packs that need to be protected from explosion due to incorrect charging or (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-010055 — Non-isolated power architecture with diagnostics reference design for protection relay modules

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00600 — Power and Battery Management Reference Design for CC2530 ZigBee Wireless MCU

The main focus of the TIDA-00600 is to provide a small size and cost optimized power management solution for ZigBee systems that requires both a rechargable battery and DC connector power supply. TIDA-00600 design provides test data, design guide and Gerber files for the power management segment.

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Design guide: PDF
Schematic: PDF
Package Pins Download
SOT-23 (DBZ) 3 View options
X2SON (DQN) 4 View options

Ordering & quality

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