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TPS3779

ACTIVE

Push-pull, low-power, dual-voltage detector in a small µSON package

Product details

Rating Catalog Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 1.074, 1.134, 1.182, 1.188 Features Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.002 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 0 Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Rating Catalog Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 1.074, 1.134, 1.182, 1.188 Features Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.002 Output driver type/reset output Active-low, Push-Pull Time delay (ms) 0 Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm) USON (DRY) 6 1.45 mm² (1.45 mm × 1 mm)
  • Two-Channel Detectors in Small Packages
  • High-Accuracy Threshold and Hysteresis: 1.0%
  • Low Quiescent Current: 2 µA (typ)
  • Adjustable Detection Voltage Down to 1.2 V
  • Multiple Hysteresis Options:
    • 0.5%, 1%, 5%, and 10%
  • Temperature Range: –40°C to 125°C
  • Push-Pull (TPS3779) and Open-Drain (TPS3780) Output Options
  • Available in µSON and SOT23 Packages
  • Two-Channel Detectors in Small Packages
  • High-Accuracy Threshold and Hysteresis: 1.0%
  • Low Quiescent Current: 2 µA (typ)
  • Adjustable Detection Voltage Down to 1.2 V
  • Multiple Hysteresis Options:
    • 0.5%, 1%, 5%, and 10%
  • Temperature Range: –40°C to 125°C
  • Push-Pull (TPS3779) and Open-Drain (TPS3780) Output Options
  • Available in µSON and SOT23 Packages

The TPS3779 and TPS3780 are a family of high-accuracy, two-channel voltage detectors with low-power and small solution size. The SENSE1 and SENSE2 inputs include hysteresis to reject brief glitches, ensuring stable output operation without false triggering. This family offers different factory-set hysteresis options of 0.5%, 1%, 5%, or 10%.

The TPS3779 and TPS3780 have adjustable SENSE inputs that can be configured by an external resistor divider. When the voltage at the SENSE1 or SENSE2 input goes below the falling threshold, OUT1 or OUT2 is driven low, respectively. When SENSE1 or SENSE2 rises above the rising threshold, OUT1 or OUT2 goes high, respectively.

The devices have a very low quiescent current of 2 µA (typical) and provide a precise, space-conscious solution for voltage detection suitable for low-power system-monitoring and portable applications. The TPS3779 and TPS3780 operate from 1.5 V to 6.5 V, over the –40°C to 125°C temperature range.

The TPS3779 and TPS3780 are a family of high-accuracy, two-channel voltage detectors with low-power and small solution size. The SENSE1 and SENSE2 inputs include hysteresis to reject brief glitches, ensuring stable output operation without false triggering. This family offers different factory-set hysteresis options of 0.5%, 1%, 5%, or 10%.

The TPS3779 and TPS3780 have adjustable SENSE inputs that can be configured by an external resistor divider. When the voltage at the SENSE1 or SENSE2 input goes below the falling threshold, OUT1 or OUT2 is driven low, respectively. When SENSE1 or SENSE2 rises above the rising threshold, OUT1 or OUT2 goes high, respectively.

The devices have a very low quiescent current of 2 µA (typical) and provide a precise, space-conscious solution for voltage detection suitable for low-power system-monitoring and portable applications. The TPS3779 and TPS3780 operate from 1.5 V to 6.5 V, over the –40°C to 125°C temperature range.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS37xx Dual-Channel, Low-Power, High-Accuracy Voltage Detectors datasheet PDF | HTML Apr 21, 2015
Application note Voltage and Processor Monitoring Solutions in Factory Automation and Control App (Rev. A) Aug 5, 2021
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 article Tips and tricks for optimizing your voltage supervisor PDF | HTML Mar 7, 2017
Technical article Why monitoring voltages matters PDF | HTML Jun 17, 2015

Design & development

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Simulation model

TPS3779A PSpice Transient Model

SBVM484.ZIP (51 KB) - PSpice model
Supported products & hardware
Simulation model

TPS3779A Unencrypted PSpice Transient Model

SBVM485.ZIP (2 KB) - PSpice model
Supported products & hardware
Simulation model

TPS3779B PSpice Transient Model

SBVM480.ZIP (97 KB) - PSpice model
Supported products & hardware
Simulation model

TPS3779B Unencrypted PSpice Transient Model

SBVM481.ZIP (2 KB) - PSpice model
Supported products & hardware
Simulation model

TPS3779C PSpice Transient Model

SBVM486.ZIP (91 KB) - PSpice model
Supported products & hardware
Simulation model

TPS3779C Unencrypted PSpice Transient Model

SBVM487.ZIP (2 KB) - PSpice model
Supported products & hardware
Simulation model

TPS3779D PSpice Transient Model

SBVM482.ZIP (91 KB) - PSpice model
Supported products & hardware
Simulation model

TPS3779D Unencrypted PSpice Transient Model

SBVM483.ZIP (2 KB) - PSpice model
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 6 Ultra Librarian
USON (DRY) 6 Ultra Librarian

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