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TPS3701

ACTIVE

High-voltage (36-V) window voltage detector with internal reference for OV & UV monitoring

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Data sheet

TPS3701

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 1, 2 Threshold voltage 1 (typ) (V) 0.4 Features Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 0.75 Iq (typ) (mA) 0.007 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 36 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 1, 2 Threshold voltage 1 (typ) (V) 0.4 Features Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 0.75 Iq (typ) (mA) 0.007 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 36 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Wide supply voltage range: 1.8 V to 36 V
  • Adjustable threshold: down to 400 mV
  • Open-drain outputs for over- and undervoltage detection
  • Low quiescent current: 7 µA (Typical)
  • High threshold accuracy:
    • 0.75% Over temperature
    • 0.25% (Typical)
  • Internal hysteresis: 5.5 mV (typical)
  • Temperature range: –40°C to 125°C
  • Package:
    • SOT-6
  • Wide supply voltage range: 1.8 V to 36 V
  • Adjustable threshold: down to 400 mV
  • Open-drain outputs for over- and undervoltage detection
  • Low quiescent current: 7 µA (Typical)
  • High threshold accuracy:
    • 0.75% Over temperature
    • 0.25% (Typical)
  • Internal hysteresis: 5.5 mV (typical)
  • Temperature range: –40°C to 125°C
  • Package:
    • SOT-6

The TPS3701 wide-supply voltage window detector operates over a 1.8-V to 36-V range. The device has two precision comparators with an internal 400-mV reference and two open-drain outputs (OUTA and OUTB) rated to 25 V for over- and undervoltage detection. Use the TPS3701 as a window voltage detector or as two independent voltage monitors; set the monitored voltage with the use of external resistors.

OUTA is driven low when the voltage at the INA pin drops below the negative threshold, and goes high when the voltage returns above the positive threshold. OUTB is driven low when the voltage at the INB pin rises above the positive threshold, and goes high when the voltage drops below the negative threshold. Both comparators in the TPS3701 include built-in hysteresis for noise rejection, thereby ensuring stable output operation without false triggering.

The TPS3701 is available in a SOT-6 package and is specified over the junction temperature range of –40°C to 125°C.

 

The TPS3701 wide-supply voltage window detector operates over a 1.8-V to 36-V range. The device has two precision comparators with an internal 400-mV reference and two open-drain outputs (OUTA and OUTB) rated to 25 V for over- and undervoltage detection. Use the TPS3701 as a window voltage detector or as two independent voltage monitors; set the monitored voltage with the use of external resistors.

OUTA is driven low when the voltage at the INA pin drops below the negative threshold, and goes high when the voltage returns above the positive threshold. OUTB is driven low when the voltage at the INB pin rises above the positive threshold, and goes high when the voltage drops below the negative threshold. Both comparators in the TPS3701 include built-in hysteresis for noise rejection, thereby ensuring stable output operation without false triggering.

The TPS3701 is available in a SOT-6 package and is specified over the junction temperature range of –40°C to 125°C.

 

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Technical documentation

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Type Title Date
* Data sheet TPS3701 High voltage (36V) window voltage detector with internal reference for over and undervoltage monitoring datasheet (Rev. C) PDF | HTML 04 Feb 2019
Application note Voltage and Processor Monitoring Solutions in Factory Automation and Control App (Rev. A) 05 Aug 2021
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
Application note Split Supply Positive and Negative Dual Voltage Monitoring Solution 11 Oct 2019
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Application brief A Voltage Monitor with Diagnostics 09 Jan 2019
Application note Adding Reset Delay to Voltage Detectors 09 Oct 2018
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Technical article Tips and tricks for optimizing your voltage supervisor PDF | HTML 07 Mar 2017
Application brief Low-Power Battery Temperature Monitoring 03 Mar 2017
Technical article How to implement voltage monitoring PDF | HTML 22 Jul 2015
Technical article Why monitoring voltages matters PDF | HTML 17 Jun 2015

Design & development

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

Evaluation board

TPS3700EVM-114 — TPS3700 high-voltage (18-V) window voltage detector evaluation module for SOT-23 package

The Texas Instruments TPS3700EVM-114 evaluation module (EVM) helps designers evaluate the performance of the TPS3700 high-voltage (18 V), window comparator with overvoltage and undervoltage detection. The EVM has an IC for overvoltage and undervoltage monitoring and header connectors for easy (...)
User guide: PDF
Not available on TI.com
Simulation model

TPS3701 PSPICE Transient Model (Rev. C)

SNVM680C.ZIP (51 KB) - PSpice Model
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Simulation model

TPS3701 Unencrypted PSpice Transient Model (Rev. C)

SBVM551C.ZIP (3 KB) - PSpice Model
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Calculation tool

SBVC042 — TPS3701 Resistor Divider Calculator

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS3701 — High-voltage (36-V) window voltage detector with internal reference for OV & UV monitoring
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Calculation tool

SLUC425 — TPS3700, TPS3700-Q1 and TPS3701 Resistor Divider Calculator

Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TPS3700 — High-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring TPS3700-Q1 — Automotive high-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring TPS3701 — High-voltage (36-V) window voltage detector with internal reference for OV & UV monitoring
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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 (...)
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Reference designs

TIDA-00394 — Dual Power Path Multiplexer Reference Design

Many systems require a backup battery to provide power in the event of a power outage.  Switching between the main power and the backup battery power without incurring significant efficiency degradation or cost is a tricky challenge.   This design provides a high accuracy, low (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00396 — High Accuracy Window Voltage Monitor

This application provides a high accuracy overvoltage and undervoltage flag for a typical 24 V rail with a minimal component count. The high voltage VDD input can withstand up to 36 V, allowing for wide input voltage variations. The total current consumption is less than 20 uA.
Test report: PDF
Schematic: PDF
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SOT-23-THN (DDC) 6 Ultra Librarian
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