Supervisor & reset ICs

Continuous voltage and power-rail monitoring 

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We have a wide portfolio of voltage supervisors and reset ICs that includes watchdog timers, push-button, voltage detectors, fixed-time delay supervisors and programmable time-delay supervisors. Also known as voltage monitors, these devices continuously monitor system health to ensure proper operation. These devices integrate the right combination of features to provide flexibility for customers across all applications including automotive, industrial and personal electronics.

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Single-channel supervisor

Monitors a single voltage rail for undervoltage or overvoltage detection.

Multichannel supervisor

Monitors multiple voltage rails with high precision.

Low-IQ supervisor

Monitors a voltage supply with low-power consumption to achieve longer battery life.

Watchdog timer

Prevents freezes or hangs in an MCU and continuously monitors the voltage supply for undervoltage conditions.

Push-button reset IC

Monitors user presses and provides a reset after the user holds the button for a given time period.

Window detector

Monitors overvoltage and undervoltage conditions to alert the system when a voltage rail deviates from the permissible tolerance level.

Featured supervisors & reset ICs

Design & development resources

Calculation tool
TPS37, TPS38, and TPS3760 adjustable-resistor and time-delay calculator
This calculator tool guides the user through the design process for the adjustable variants of the TPS37/38 dual-channel supervisors. The default voltage threshold and hysteresis level for these devices are set to 800 mV and 2% respectively, but can be adjusted through the addition of resistors. (...)
Evaluation board
TPS38700 evaluation module for power-supply sequencer with I²C support for up to 12 channels

The TPS38700 evaluation module (EVM) is a platform for evaluating the TPS38700, which is an integrated multichannel voltage sequencer with a window watchdog. TPS38700 is inter-integrated circuit (I2C) programmable and available in a 24-pin very thin quad flatpack no-lead (VQFN) package.

(...)

Evaluation board
TPS3899 evaluation module for nanopower supervisor with programmable sense and reset delay

The TPS3899 evaluation module (EVM) is a platform for evaluating the TPS3899 product, which is a 6-pin voltage supervisor and reset IC. TPS3899 offers operation up to 6 V, while maintaining a low quiescent current of 1.2 µA (max) in addition to 2% maximum accuracy.

TPS3899EVM supports all device (...)

Reference designs related to Supervisor & reset ICs

Use our reference design selection tool to find designs that best match your application and parameters.

TPS3808E-Q1
Supervisor & reset ICs

Automotive, 600-nA ultra-low quiescent current, programmable-delay supervisory circuit

Approx. price (USD) 1ku | 0.638

TPS3762
Supervisor & reset ICs

65-V window supervisor with built-in self-test

Approx. price (USD) 1ku | 1.18

TPS389C03-Q1
Supervisor & reset ICs

Automotive, 3-channel, overvoltage and undervoltage I²C programmable supervisor with Q&A watchdog

Approx. price (USD) 1ku | 2.478

TPS3808E
Supervisor & reset ICs

Low-quiescent current supervisor with programmable delay and manual reset

Approx. price (USD) 1ku | 0.541

TPS3762-Q1
Supervisor & reset ICs

Automotive 65-V window supervisor with ultra-low quiescent current and built-in self-test

Approx. price (USD) 1ku | 1.392

TPS3435-Q1
Supervisor & reset ICs

Automotive nano-quiescent-current precision watchdog timer

Approx. price (USD) 1ku | 0.826

Power trends

Low quiescent current (IQ)

Achieve ultra-low quiescent current (IQ) without giving up system performance with our wide portfolio of voltage supervisors and reset integrated circuits (ICs). Our low-IQ supervisors provide continuous voltage and power-rail monitoring while operating at low standby power, enabling longer battery run times, faster dynamic response times and a small form factor, all while maintaining ultra-low quiescent power consumption.

Featured products for low quiescent current (IQ)
TPS3899 ACTIVE Nanopower supervisor with programmable sense and reset delay
TLV841 ACTIVE Ultra-low-voltage nanopower supervisor with adjustable release delay in wafer chip-scale package
TLV803E ACTIVE Low-power voltage supervisor (reset IC) with active-low open-drain output
High precision

Our high-accuracy supervisors and reset ICs enable better regulation in power supplies and safer operation in critical grid infrastructure, motor drive and industrial automation systems.

Video series
Voltage supervisors 101
This training series covers a wide range of topics including the introduction to supervisors and also understanding the key specifications and features that a supervisor can bring to your subsystem.
Functional safety information
Streamlining Functional Safety Certification in Automotive and Industrial
This white paper explains how TI’s approach to designing integrated circuits (ICs) provides you with the resources needed to streamline your functional safety design.
PDF
Application brief
High Voltage – Fast Power Fault Detection by Monitoring 24V AC Systems Using TPS
Fast power-fault detection by monitoring 24-V AC systems using TPS37x voltage supervisor.
PDF | HTML
Featured products for high precision
TPS3703-Q1 ACTIVE Automotive high-accuracy window supervisor with reset time delay
TPS3704-Q1 ACTIVE Automotive multichannel window supervisor with very-high accuracy and compact form factor
TPS3435 ACTIVE Nano-quiescent-current precision watchdog timer

Discover featured applications

Factory automation & control
Ensure system reliability in factory automation by adding a flexible supply-voltage supervisor with an integrated watchdog timer
ADAS
Enable functional safety for ADAS applications with our precision multichannel voltage supervisors
Motor Drives
Design reliable motor drives with wide-VIN multichannel supervisors
Energy Storage Systems
Optimize energy storage system designs using voltage supervisors and watchdog timers
Hybrid, electric & powertrain systems
Enhance system stability in EVs and comply with functional safety requirements using flexible, high-precision voltage supervisors
Body Electronics and Lighting
Advance power efficiency for body control modules with compact, wide-VIN supervisors

Ensure system reliability in factory automation by adding a flexible supply-voltage supervisor with an integrated watchdog timer

For programmable logic controller field transmitters or industrial PC designs, microcontroller power rails need voltage monitoring to ensure power within regulation specifications, ensuring system safety.

Benefits:

  • Programmable sense-and-reset delay for high-voltage rails
  • Manual reset capability to force system resets
  • Separate VDD and SENSE pins add redundancy to high-reliability systems
  • Functional safety ratings up to Safety Integrity Level (SIL) 3 and SIL 4

Featured resources

REFERENCE DESIGNS
  • TIDA-010049 – TUV-assessed digital input reference design for IEC 61508 (SIL-2)
  • TIDEP0020 – AM437x Discrete Power Reference Design
  • TIDEP0050 – EnDat 2.2 System Reference Design
PRODUCTS
  • TPS37 – 65-V window supervisor with ultra-low quiescent current and time-delay function
  • TPS3704 – Multichannel window supervisor with very-high accuracy and compact form factor
  • TPS3435 – Nano-quiescent-current precision watchdog timer

Enable functional safety for ADAS applications with our precision multichannel voltage supervisors

In integrated ADAS, monitoring power rails for processors and microcontrollers (MCU) helps prevent brownout from irregular voltage-output conditions. Our portfolio of low-power supervisors help ensure system safety by alerting the MCU during an over- or undervoltage event.

Benefits:

  • Multichannel monitoring allows for precise power control on complex designs
  • Window detection for systems requiring over- and undervoltage monitoring
  • Watchdog feature prevents processing glitches and ensures continuous device functionality
  • Support for functional safety requirements up to ASIL D

Featured resources

REFERENCE DESIGNS
  • TIDA-050008 – ADAS power reference design with improved voltage supervision
  • TIDA-00530 – Automotive Power Reference Design for Low Power TDA3x Based Systems
  • TIDEP-01017 – Cascade imaging radar capture reference design using Jacinto™ ADAS processor
PRODUCTS
  • TPS3704-Q1 – Automotive multichannel window supervisor with very-high accuracy and compact form factor
  • TPS38700-Q1 – Automotive power-supply sequencer with I²C support for up to 12 channels
  • TPS389006-Q1 – Automotive multichannel overvoltage and undervoltage I²C programmable voltage supervisor and monitor

Design reliable motor drives with wide-VIN multichannel supervisors

Motor drives require proper regulation for their power supplies as well as precise sensing for accurate position and torque control. Use our low-current voltage supervisors to monitor core voltage rails and reliable operation without draining power.

Benefits: 

  • VIN options up to 65 V with the TPS37 and TPS38
  • Multichannel monitoring available
  • Adjustable and fixed-sense inputs for high-voltage rails
  • Programmable time delay for sequencing flexibility

Featured resources

REFERENCE DESIGNS
  • TIDEP0020 – AM437x Discrete Power Reference Design
  • TIDM-SERVODRIVE – Industrial Servo Drive and AC Inverter Drive Reference Design
PRODUCTS
  • TPS37 – 65-V window supervisor with ultra-low quiescent current and time-delay function
  • TPS3704 – Multichannel window supervisor with very-high accuracy and compact form factor
  • TPS3899 – Nanopower supervisor with programmable sense and reset delay

Optimize energy storage system designs using voltage supervisors and watchdog timers

Energy storage systems rely on voltage supervisors to monitor power rails and assert reset signals when necessary. Our voltage supervisors include low quiescent current (IQ), high precision and exceptional programmability.

Benefits:

  • Watchdog timers increase system reliability in the event of an microcontroller malfunction
  • Window voltage monitoring for systems requiring over- and undervoltage monitoring
  • Minimize power consumption by maintaining ultra-low IQ on up to four channels

Featured resources

REFERENCE DESIGNS
  • TIDA-01214 – Isolated, High-Accuracy Analog Input Module Reference Design Using 16-Bit ADC and Digital Isolator
  • TIDA-010041 – Nano power, wide VIN (12 V max) supervisor reference design used as comparator or power sequencer
  • TIDA-010052 – Safety power supply for motor drives reference design
PRODUCTS
  • TPS3704 – Multichannel window supervisor with very-high accuracy and compact form factor
  • TPS3435 – Nano-quiescent-current precision watchdog timer
  • TPS3899 – Nanopower supervisor with programmable sense and reset delay

Enhance system stability in EVs and comply with functional safety requirements using flexible, high-precision voltage supervisors

Voltage supervisors are imperative when monitoring system health in high-reliability automotive systems where functional safety is paramount. Our voltage supervisors include low quiescent current (IQ), high precision and high programmability.

Benefits:

  • Window voltage monitoring for systems requiring over- and undervoltage monitoring
  • Minimize power consumption by maintaining ultra-low IQ on up to four channels
  • Programmable reset delays and window watchdog timing options enable customization
  • Support for functional safety requirements up to Automotive Safety Integrity Level (ASIL) D

Featured resources

REFERENCE DESIGNS
  • TIDA-01168 – Bidirectional DC/DC Converter Reference Design for 12-V/48-V Automotive Systems
  • TIDA-020014 – HEV/EV traction inverter power stage with 3 types of IGBT/SiC bias-supply solutions reference design
  • PMP22650 – GaN-based, 6.6-kW, bidirectional, onboard charger reference design
PRODUCTS
  • TPS3850-Q1 – Automotive, window supervisor for OV & UV monitoring with window watchdog timer & programmable delay
  • TPS3704-Q1 – Automotive multichannel window supervisor with very-high accuracy and compact form factor
  • TPS37-Q1 – Automotive 65-V window supervisor with ultra-low quiescent current and time-delay function

Advance power efficiency for body control modules with compact, wide-VIN supervisors

In body control modules and automotive gateways, reset integrated circuits (ICs) ensure power efficiency and early detection for irregular voltage output conditions. Our supervisors help meet your system needs at some of the industry's fastest detection speeds.

 

Benefits:

  • VIN options up to 65 V with the TPS37-Q1
  • Window voltage monitoring for systems requiring over- and undervoltage monitoring
  • Programmable reset and sense delay timing for more configurability
  • Separate VDD and sense pins enable the monitoring of voltages higher and lower than VDD

Featured resources

REFERENCE DESIGNS
  • TIDA-01168 – Bidirectional DC/DC Converter Reference Design for 12-V/48-V Automotive Systems
  • TIDA-00699 – Front End Power Supply Reference Design with Cold Crank Operation, Transient Protection, EMI Filter
PRODUCTS
  • TPS37-Q1 – Automotive 65-V window supervisor with ultra-low quiescent current and time-delay function
  • TPS389006-Q1 – Automotive multichannel overvoltage and undervoltage I²C programmable voltage supervisor and monitor
  • TPS3704-Q1 – Automotive multichannel window supervisor with very-high accuracy and compact form factor

Technical resources

E-book
E-book
Voltage Supervisor and Reset ICs: Tips, Tricks and Basics
This article provides an introduction to voltage supervisors and an in-depth overview of their various applications.
document-pdfAcrobat PDF
Selection guide
Selection guide
Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H)
Check out our most popular supervisors and reset ICs.
document-pdfAcrobat PDF
Application note
Application note
Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A)
Read about the most frequently asked questions (FAQs) for voltage supervisors, reset ICs, voltage detectors, watchdog timers and all related monitoring devices.
document-pdfAcrobat PDF