TS3121A | Product - STMicroelectronics

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Product overview

Key Benefits

Power-on Reset architecture for energy efficiency

Glitch-free output during power-on allows continuous device on/off cycles to perform measurements, reducing overall power consumption in energy-saving applications

Robustness and wide operating range

Supports extended temperature range (-40 °C to +125 °C) and high ESD tolerance, ideal for industrial and automotive environments

Accurate threshold detection

Offers fast response time, ensuring accurate and efficient signal comparison

Description

The TS3121, TS3121A and TS3121P single comparators permit high-speed response time at low power consumption over a supply voltage specified from 1.7 to 5.5 V. These devices operate over a wide temperature range from -40 °C to +125 °C making them ideal for industrial and automotive applications with the associated qualification.

An embedded power-on reset circuit in the TS3121P version ensures a known output condition while activating the supply rail.

Thanks to their small package size, the TS3121, TS3121A and TS3121P can be used in applications where space on the board is limited. It can thus reduce the overall cost of the PCB.

All features
AEC-Q100 qualified

Low offset voltage: 2 mV max @ 25 °C (A-grade version)

Low power consumption: 70 μA typ.

Wide supply voltage: 1.7 to 5.5 V

Propagation delay: 60 ns

Rail-to-rail input

Open-drain output
Output pin withstands voltages higher than V_CC

Power-on Reset (TS3121P)

Guaranteed start-up time (TS3121, TS3121A)

High ESD tolerance: 4 kV HBM

Extended temperature range: -40 to +125 °C

Safety capable: documentation available to aid functional safety system design
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eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

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Estimate

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Signal Conditioning Design Tool

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Featured Videos

Discover ST high speed 5 V comparator portfolio

Discover ST high speed 5 V comparator portfolio

High-speed 5 V comparators for fast event detection and signal conditioning in industrial and automotive designs. Discover ST portfolio built for precision, speed, and robustness in demanding applications

Watch the video (0:34)

EDA Symbols, Footprints and 3D Models

Quality and Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Longevity Commitment	Longevity Starting Date	Material Declaration**
TS3121AICT	Active	SC70-5	Industrial	Ecopack3	10	2024-01-01T00:00:00.000+01:00	PDF XML
TS3121AILT	Active	SOT23-5L	Industrial	Ecopack3	10	2024-01-01T00:00:00.000+01:00	PDF XML
TS3121AIYCT	Active	SC70-5	Automotive	Ecopack3	10	2024-01-01T00:00:00.000+01:00	PDF XML
TS3121AIYLT	Active	SOT23-5L	Automotive	Ecopack3	10	2024-01-01T00:00:00.000+01:00	PDF XML

TS3121AICT

Package:

SC70-5

Material Declaration**:

TS3121AILT

Package:

SOT23-5L

Material Declaration**:

TS3121AIYCT

Package:

SC70-5

Material Declaration**:

TS3121AIYLT

Package:

SOT23-5L

Material Declaration**:

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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Package:

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TS3121AICT Active

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-

Available at distributors

No availability of distributors reported, please contact our sales office

Buy Direct at ST

Add Free Sample

Package:

Packing Type:

RoHS:

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TS3121AIYLT Active

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-

Available at distributors

No availability of distributors reported, please contact our sales office

Buy Direct at ST

Add Free Sample

Package:

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RoHS:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors