TS3121A

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Design Win Education

Rail-to-rail, open-drain comparator with embedded fail-safe input/output

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Product overview

Description

The TS3121 and the TS3121A 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.

Thanks to an embedded fail-safe circuit, the TS3121 and the TS3121A can operate with input/output pins biased while the supply pin is shut down to VCC = 0 V for energy saving applications. A guaranteed start-up time ensures a stable output condition after activating the supply rail.

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

  • All features

    • 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
    • Fail-safe input/output pins
    • Input/output pins withstand voltages higher than VCC
    • Fail-safe architecture keeps output in high impedance when VCC = 0 V
    • Guaranteed start-up time allows sequential on/off cycles of VCC
    • High ESD tolerance: 4 kV HBM
    • Extended temperature range: -40 to +125 °C
    • AEC-Q100 qualified
    • Safety capable: documentation available to aid functional safety system design

EDA Symbols, Footprints and 3D Models

STMicroelectronics - TS3121A

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS3121AICT
Active
SC70-5 Industrial Ecopack3
TS3121AILT
Active
SOT23-5L Industrial Ecopack3
TS3121AIYCT
Active
SC70-5 Automotive Ecopack3
TS3121AIYLT
Active
SOT23-5L Automotive Ecopack3

TS3121AICT

Package:

SC70-5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SC70-5

Grade

Industrial

RoHS Compliance Grade

Ecopack3

TS3121AILT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack3

TS3121AIYCT

Package:

SC70-5

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SC70-5

Grade

Automotive

RoHS Compliance Grade

Ecopack3

TS3121AIYLT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Automotive

RoHS Compliance Grade

Ecopack3

(**) 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.

Sample & Buy

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TS3121AIYLT
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TS3121AILT Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

TS3121AILT

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Distributor Name

Distributor reported inventory date:

TS3121AIYCT Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

TS3121AIYCT

Operating Temperature (°C)

Min:

Max:

Grade:

Automotive

Distributor Name

Distributor reported inventory date:

TS3121AICT Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

TS3121AICT

Operating Temperature (°C)

Min:

Max:

Grade:

Industrial

Distributor Name

Distributor reported inventory date:

TS3121AIYLT Active

Budgetary Price (US$)*/Qty:
-
Package:
Packing Type:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

Part Number:

TS3121AIYLT

Operating Temperature (°C)

Min:

Max:

Grade:

Automotive

Distributor Name

Distributor reported inventory date:

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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