TPS3103K33DBVR

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Texas Instruments

ULTRA-LOW SUPPLY CURRENT, VOLTAGE SUPERVISOR WITH POWER FAIL INPUT

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TPS3103K33DBVR

Active

Texas Instruments

ULTRA-LOW SUPPLY CURRENT, VOLTAGE SUPERVISOR WITH POWER FAIL INPUT

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Description Specifications Series Pricing CAD Documents

Description

General part information

TPS3103 Series

The TPS310x and TPS311x families of supervisory circuits provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.

During power-on,RESETis asserted low when the supply voltage (VDD) becomes higher than 0.4 V. Thereafter, the supervisory circuit monitors VDDand keeps theRESEToutput low as long as VDDremains below the threshold voltage (VIT–). To ensure proper system reset, after VDDsurpasses the threshold voltage, an internal timer delays the transition of theRESETsignal from low to high for the specified time. When VDDdrops below VIT–, the output transitions low again.

All the devices of this family have a fixed-sense threshold voltage (VIT–) set by an internal voltage divider.

Technical Specifications

Parameters and characteristics for this part

Specification	TPS3103K33DBVR

Mounting Type	Surface Mount
Number of Voltages Monitored	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output	Open Drain, Open Collector
Package / Case	SOT-23-6
Package Name	SOT-23-6
Reset	Active Low
Reset Timeout (Minimum)	65 ms
Type	Simple Reset/Power-On Reset
Voltage - Threshold	2.941 V

TPS3103 Series

Part	Package / Case	Voltage - Threshold	Reset Timeout (Minimum)	Operating Temperature (Min)	Operating Temperature (Max)	Output	Number of Voltages Monitored	Mounting Type	Reset	Type	Package Name
Texas Instruments TPS3103H20DBVT	SOT-23-6	1.84 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103E15DBVT	SOT-23-6	1.434 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103E12DBVRG4	SOT-23-6	1.142 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103E12DBVR	SOT-23-6	1.142 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103K33DBVR	SOT-23-6	2.941 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103K33DBVT	SOT-23-6	2.941 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103E12DBVTG4	SOT-23-6	1.142 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103K33DBVTG4	SOT-23-6	2.941 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103E15DBVR	SOT-23-6	1.434 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6
Texas Instruments TPS3103E12DBVT	SOT-23-6	1.142 V	65 ms	-40 °C	85 °C	Open Collector Open Drain	1	Surface Mount	Active Low	Simple Reset/Power-On Reset	SOT-23-6

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

TPS3103K33DBVR | Datasheet

Power Management Guide 2018 (Rev. R)

TPS31xx Ultralow Supply-Current Voltage Monitor With Optional Watchdog datasheet (Rev. G)

Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H)

Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs

Monitoring Five Different Voltage Rails Using the TPS3103 and TPS3306