Texas Instruments-TPS2010DRG4 Power Switches Power Switch Hi Side 1-OUT 0A 140mOhm 8-Pin SOIC T/R

Sensors, Transducers

TMP421AIDCNR

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REMOTE AND LOCAL TEMPERATURE SENSOR WITH N-FACTOR AND SERIES-R CORRECTION IN WCSP

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Search across all available documentation for this part.

DocumentsHow to Read and Interpret Digital Temperature Sensor Output Data (Rev. A)±1°C Remote and Local Temperature Sensor datasheet (Rev. C)

Sensors, Transducers

TMP421AIDCNR

Active

Texas Instruments

REMOTE AND LOCAL TEMPERATURE SENSOR WITH N-FACTOR AND SERIES-R CORRECTION IN WCSP

Deep-Dive with AI

DocumentsHow to Read and Interpret Digital Temperature Sensor Output Data (Rev. A)±1°C Remote and Local Temperature Sensor datasheet (Rev. C)

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	TMP421AIDCNR

Accuracy - Highest (Lowest) [Max]	1.5 °C
Accuracy - Highest (Lowest) [Min]	2.5 °C
Features	Output Switch, Programmable Limit, One-Shot, Shutdown Mode
Mounting Type	Surface Mount
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Type	SMBus
Package / Case	SOT-23-8
Resolution	11 b
Sensing Temperature - Local [Max]	125 °C
Sensing Temperature - Local [Min]	-40 °C
Sensing Temperature - Remote [Max]	191 °C
Sensing Temperature - Remote [Min]	-64 °C
Supplier Device Package	SOT-23-8
Test Condition [Max]	85 °C
Test Condition [Max]	125 °C
Test Condition [Min]	-40 °C
Test Condition [Min]	15 °C
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.7 V

TMP421-Q1 Series

Remote and Local Temperature Sensor with N-Factor and Series-R Correction in WCSP

Part	Package / Case	Sensing Temperature - Local [Max]	Sensing Temperature - Local [Min]	Resolution	Sensing Temperature - Remote [Max]	Sensing Temperature - Remote [Min]	Output Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Features	Supplier Device Package	Test Condition [Max]	Test Condition [Max]	Test Condition [Min]	Test Condition [Min]	Accuracy - Highest (Lowest) [Max]	Accuracy - Highest (Lowest) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Grade	Test Condition	Accuracy - Highest (Lowest)	Qualification
Texas Instruments TMP421AIDCNTG4	SOT-23-8	125 °C	-40 °C	11 b	191 °C	-64 °C	SMBus	2.7 V	5.5 V	Surface Mount	One-Shot Output Switch Programmable Limit Shutdown Mode	SOT-23-8	85 °C	125 °C	-40 °C	15 °C	1.5 °C	2.5 °C	125 °C	-40 °C
Texas Instruments TMP421AQDCNTQ1	SOT-23-8	127 °C	-40 °C	12 b	127 °C	-40 °C	I2C/SMBus	2.7 V	5.5 V	Surface Mount	One-Shot Output Switch Programmable Limit Shutdown Mode	SOT-23-8							125 °C	-40 °C	Automotive	15°C ~ 85°C (-40°C ~ 125°C) 15°C ~ 85°C (-40°C ~ 125°C)	±1.5°C ±1°C	AEC-Q100
Texas Instruments TMP421AIDCNRG4	SOT-23-8	125 °C	-40 °C	11 b	191 °C	-64 °C	SMBus	2.7 V	5.5 V	Surface Mount	One-Shot Output Switch Programmable Limit Shutdown Mode	SOT-23-8	85 °C	125 °C	-40 °C	15 °C	1.5 °C	2.5 °C	125 °C	-40 °C
Texas Instruments TMP421AIDCNR	SOT-23-8	125 °C	-40 °C	11 b	191 °C	-64 °C	SMBus	2.7 V	5.5 V	Surface Mount	One-Shot Output Switch Programmable Limit Shutdown Mode	SOT-23-8	85 °C	125 °C	-40 °C	15 °C	1.5 °C	2.5 °C	125 °C	-40 °C
Texas Instruments TMP421YZDR		125 °C	-40 °C	11 b	191 °C	-64 °C	SMBus	2.7 V	5.5 V	Surface Mount	One-Shot Output Switch Programmable Limit Shutdown Mode	8-DSBGA	85 °C	125 °C	-40 °C	15 °C	1.5 °C	2.5 °C	125 °C	-40 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.97
		10	$ 1.52
		25	$ 1.27
		50	$ 1.24
		100	$ 1.13
		500	$ 0.98
		1000	$ 0.87
	Digi-Reel®	1	$ 1.97
		10	$ 1.52
		25	$ 1.27
		50	$ 1.24
		100	$ 1.13
		500	$ 0.98
		1000	$ 0.87
	Tape & Reel (TR)	3000	$ 0.84
		6000	$ 0.82
		9000	$ 0.79
Texas Instruments	LARGE T&R	1	$ 0.95
		100	$ 0.73
		250	$ 0.54
		1000	$ 0.39

Description

General part information

TMP421-Q1 Series

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 devices are single, dual, and triple remote, automotive-qualified temperature sensor monitors with a built-in local temperature sensor. The remote temperature sensor diode-connected transistors are typically low-cost, NPN- or PNP-type transistors or diodes that are an integral part of microcontrollers, microprocessors, or field-programmable gate arrays (FPGAs).

Remote accuracy is ±1°C for multiple device manufacturers, with no calibration needed. The two-wire serial interface accepts SMBus write byte, read byte, send byte, and receive byte commands to configure the device.

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 include series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to +150°C), and diode fault detection.

Documents

Technical documentation and resources

How to Read and Interpret Digital Temperature Sensor Output Data (Rev. A)

Application note

±1°C Remote and Local Temperature Sensor datasheet (Rev. C)

Data sheet