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Product details

Parameters

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 2.93, 4.55 Features Active-low enable, Manual reset, Watchdog timer Reset threshold accuracy (%) 2.4 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 Rating Catalog Watchdog timer WDI (sec) 1.6 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)

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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).

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 20
Type Title Date
* Datasheet TPS382x Voltage Monitor With Watchdog Timer datasheet (Rev. M) Jul. 23, 2020
Selection guides Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) Feb. 28, 2020
White papers Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
User guides Hybrid RF and PLC Communications Design Guide (Rev. B) May 20, 2019
User guides Extending Network Coverage Reliability Standards-Based Protocols Design Guide (Rev. A) May 17, 2019
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
User guides G3-PLC (CENELEC Band) Data Concentrator Design Guide Dec. 28, 2015
User guides G3-PLC (FCC Band) Data Concentrator Design Guide (Rev. A) Dec. 11, 2015
User guides SOMPLC-F28PLC83 System on Module for Power Line Communication User's Guide (Rev. B) Jun. 11, 2015
User guides System on Module for Power-Line Communication (CENELEC Freq. Band) Design Guide Mar. 19, 2015
User guides System on Module for Power-Line Communication (FCC Frequency Band) Design Guide Mar. 10, 2015
User guides System on Module for G3 Power Line Communication (CENELEC) Design Guide (Rev. A) Feb. 26, 2015
User guides System on Module for Industrial Power Line Communication (CENELEC) Design Guide Aug. 27, 2014
User guides SOMPLC-F28M35 Power Line Communication System on Module Design Guide Mar. 18, 2014
Technical articles Automotive electronics design made easy Jul. 18, 2013
Technical articles John discusses benefits of LEDs in automobiles Jul. 16, 2013
Application notes Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs Sep. 19, 2011
More literature CAN Quick Start Guide Feb. 10, 2004
User guides CAN Software Installation Guide Feb. 10, 2004
User guides CAN Software User's Guide Feb. 10, 2004

Design & development

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

Hardware development

EVALUATION BOARDS 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
SPRCA41A.ZIP (6367 KB)
SUPPORT SOFTWARE Download
TIDCC37B.ZIP (2412 KB)
SUPPORT SOFTWARE Download
TIDCC75A.ZIP (2421 KB)

Design tools & simulation

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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
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  • Supports simultaneous analysis of multiple products
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ASSEMBLY DRAWINGS Download
TIDRAH6.ZIP (116 KB)
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TIDR365.ZIP (23 KB)
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TIDR467.PDF (145 KB)
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Reference designs

REFERENCE DESIGNS Download
Non-isolated power architecture with diagnostics reference design for protection relay modules
TIDA-010055 — 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 (...)
document-generic Schematic document-generic User guide

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SOT-23 (DBV) 5 View options

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