Ultra-low power, supply voltage supervisor
Product details
Parameters
Package | Pins | Size
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
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.
Same functionality and pinout but is not an equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor datasheet (Rev. D) | Jul. 01, 2015 |
Application note | Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) | Mar. 17, 2020 | |
Selection guide | Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) | Feb. 28, 2020 | |
E-book | Voltage Supervisor and Reset ICs: Tips, Tricks and Basics | Jun. 28, 2019 | |
Technical articles | Tips and tricks for optimizing your voltage supervisor | Mar. 07, 2017 | |
Application note | Using Voltage Supervisor for Input Over-Voltage Protection in LED Drivers | May 20, 2013 | |
Application note | Using the TPS3839/1yxx as an Adjustable Supply Voltage Supervisor | Aug. 16, 2012 | |
User guide | TPS3839K33EVM-112 Evaluation Module | Jul. 17, 2012 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Features
- 2% Accuracy
- Ultra low Supply Current: 250nA
- Operating Supply Voltage: 0.6V-6.5V
- Push-Pull RESET output
- 1.0 x 1.0mm µSON DQN Package
- SOT23-3 DBZ Package
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
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Reference designs
Design files
-
download TIDA-00449 BOM.pdf (221KB) -
download TIDA-00449 Assembly Drawing.pdf (517KB) -
download TIDA-00449 PCB.pdf (3485KB) -
download TIDA-00449 CAD Files.zip (3631KB) -
download TIDA-00449 Gerber.zip (512KB)
Design files
-
download TIDA-010055 BOM Files.zip (310KB) -
download TIDA-010055 Assembly Files.zip (827KB) -
download TIDA-010055 Layer Plots.zip (2674KB) -
download TIDA-010055 CAD Files.zip (9038KB) -
download TIDA-010055 Gerber.zip (1157KB)
(...)
Design files
-
download TIDA-00600 BOM.pdf (203KB) -
download TIDA-00600 PCB.pdf (382KB) -
download TIDA-00600 Gerber.zip (670KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-23 (DBZ) | 3 | View options |
X2SON (DQN) | 4 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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