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Product details

Parameters

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 0.5, 1.2, 3.3, 5.0 Features Undervoltage and overvoltage monitor, Latching, Manual reset Reset threshold accuracy (%) 0.7 Output driver type/reset output Active-low, Open-drain Time delay (ms) Programmable, 0.05, 1, 5, 10, 20, 100, 200 Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

WSON (DSE) 6 2 mm² 1.5 x 1.5 open-in-new Find other Supervisor & reset ICs

Features

  • Input voltage range: 1.7 V to 5.5 V
  • Undervoltage lockout (UVLO): 1.7 V
  • Low quiescent current: 7 µA (Max)
  • High threshold accuracy:
    • ± 0.25% (typical)
    • ± 0.7% (–40°C to +125°C)
  • Fixed window threshold levels
    • 50-mV steps from 500 mV to 1.3 V
    • 1.5 V, 1.8 V, 2.5 V, 2.8 V, 2.9 V 3.3 V, 5 V
    • Available in UV threshold only
    • Window tolerance available from ±3% to ±7%
  • User adjustable voltage threshold levels
  • Internal glitch immunity and hysteresis
  • Fixed time delay options: 50 µs, 1 ms, 5 ms, 10 ms, 20 ms, 100 ms, 200 ms
  • Programmable time delay option with a single external capacitor
  • Open-drain active low UV and OV monitor
  • RESET voltage latching output mode

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Description

The TPS3703 device is an integrated overvoltage (OV) and undervoltage (UV) monitor or reset IC in industry’s smallest 6-pin DSE package. This highly accurate voltage supervisor is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Low threshold hysteresis prevent false reset signals when the monitored voltage supply is in its normal range of operation. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals.

The TPS3703 does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further optimizes overall accuracy, cost, solution size, and improves reliability for safety systems. The Capacitor Time (CT) pin is used to select between the two available reset time delays designed into each device and also to adjust the reset time delay by connecting a capacitor. A separate SENSE input pin and VDD pin allow for the redundancy sought by high-reliability systems.

This device has a low typical quiescent current specification of 4.5 µA (typical). The TPS3703 is suitable for industrial applications and applications that require accurate undervoltage and overvoltage monitoring.



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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 5
Type Title Date
* Datasheet TPS3703 High Accuracy Overvoltage and Undervoltage Reset IC With Time Delay and Manual Reset datasheet (Rev. A) Jun. 30, 2020
Application notes Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) Mar. 17, 2020
User guides TPS3703Q1-A4120EVM User's Guide Aug. 21, 2018
Technical articles Automotive electronics design made easy Jul. 18, 2013
Technical articles John discusses benefits of LEDs in automobiles Jul. 16, 2013

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
25
Description

The TPS3703Q1-A4120 evaluation module (EVM) tests the features of the TPS3703-Q1 device to the fullest extent. TPS3703-Q1 is a high-accuracy window supervisor or reset IC in a 6-pin very-very-thin small-outline no-lead (WSON) package. TPS3703-Q1 includes a CT pin that is used to (...)

Features
  • Fixed window threshold
  • Fixed and adjustable time-delay options
  • Internal glitch immunity
  • Reset latch feature
  • TPS3703-Q1 package: 6-pin WSON (1.5 mm × 1.5 mm)
  • High threshold accuracy

Design tools & simulation

SIMULATION TOOLS 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
  • (...)

CAD/CAE symbols

Package Pins Download
WSON (DSE) 6 View options

Ordering & quality

Support & training

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