Top

Product details

Parameters

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 2.93, 4.55 Features Active-low enable, Manual reset, Dual output Reset threshold accuracy (%) 2.4 Output driver type/reset output Active-high, Active-low, Push-pull Time delay (ms) 200 Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 85 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Supervisor & reset ICs

Features

  • Power-On reset generator with fixed delay time of 200 ms (TPS3823/4/5/8) or 25 ms (TPS3820)
  • Manual reset input (TPS3820/3/5/8)
  • Reset output available in active-low (TPS3820/3/4/5), active-high (TPS3824/5), and open drain (TPS3828)
  • Supply voltage supervision range:
    2.5 V, 3 V, 3.3 V, 5 V
  • Watchdog timer (TPS3820/3/4/8)
  • Supply current of 15 µA (Typical)
  • 5-Pin SOT-23 package
  • Temperature range: −40°C to 85°C (−40°C to 125°C for TPS3823A-33)

All trademarks are the property of their respective owners.

open-in-new Find other Supervisor & reset ICs

Description

The TPS382x family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage VDD becomes greater than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active low as long as VDD remains less than the threshold voltage, VIT−. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td, starts after VDD has risen above the threshold voltage (VIT− + VHYS). When the supply voltage drops below the threshold voltage VIT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, VIT–, set by an internal voltage divider. The TPS382x family also offers watchdog time out options of 200 ms (TPS3820) and 1.6 s (TPS3823/4/8).

open-in-new Find other Supervisor & reset ICs
Download

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 13
Type Title Date
* Data sheet TPS382x Voltage Monitor With Watchdog Timer datasheet (Rev. M) Jul. 23, 2020
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
Application note Latching a Voltage Supervisor (Reset IC) (Rev. A) Apr. 05, 2019
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guide TIDA-00609 Test Results Jun. 25, 2015
User guide Easy Demo User Manual Jun. 22, 2015
User guide TIDA-00089 Test Results Dec. 13, 2013
User guide Value Soundbar Reference Design Kit Development Guide (Rev. A) Feb. 03, 2012
User guide DRV603EVM - User Guide (Rev. A) Jan. 20, 2009
User guide DRV602EVM2 - User Guide (Rev. A) Jan. 17, 2009
Application note Disabling the Watchdog Timer for TI's Family of Supervisors Oct. 30, 2003

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description
The TPS382-Q1EVM evaluation module (EVM) has five different TPS382x-Q1 devices to let you evaluate and test the different features of the product family.  The EVM includes devices with 2.5-V, 3-V, 3.3-V and 5-V fixed monitoring, watchdog input, manual reset (...)
Features
  • Five different TPS382x-Q1 devices
  • Watchdog input
  • Manual reset jumpers
  • Push-pull and open-drain outputs

Software development

SUPPORT SOFTWARE Download
SLVC367A.ZIP (135542 KB)
SUPPORT SOFTWARE Download
SLVC369.ZIP (1417 KB)
SUPPORT SOFTWARE Download
TIDCAJ4.ZIP (4158 KB)

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
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
  • (...)
SCHEMATIC Download
TIDR314.PDF (133 KB)
SCHEMATIC Download
TIDRFK4.PDF (228 KB)
ASSEMBLY DRAWING Download
TIDRFK6.PDF (1219 KB)
BILL OF MATERIALS (BOM) Download
TIDR315.PDF (138 KB)
BILL OF MATERIALS (BOM) Download
TIDRFK5.PDF (125 KB)
CAD/CAE SYMBOL Download
TIDRFK8.ZIP (24452 KB)
GERBER FILE Download
TIDC216.ZIP (1286 KB)
GERBER FILE Download
TIDCAJ3.ZIP (7534 KB)
PCB LAYOUT Download
TIDRFK7.PDF (2187 KB)

Reference designs

REFERENCE DESIGNS Download
Self-Booting Audio System
TIDA-00609 The purpose of this TI Design is to provide the designer hardware and software tools that can be used as reference for audio systems. The new revision of the PurePath™ Console Motherboard (RevF) adds stand-alone, self-booting capabilities to allow making compelling demos with any EVM that is (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Value Soundbar Reference Design Kit for Stereo or 2.1 Applications
TIDA-00089 This is a Value Soundbar reference design kit for Stereo or 2.1 applications, which can easily be reapplied for PC speakers, or MP3 Docks. This is a complete reference design, including all programming hardware required, so you can get to working within minutes, a prototype within hours, and (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos