TMP421AIDCNTG4

Obsolete

Texas Instruments

SENSOR DIGITAL -40C-125C SOT23-8

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TMP421AIDCNTG4

Obsolete

Texas Instruments

SENSOR DIGITAL -40C-125C SOT23-8

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Description Specifications Series Pricing CAD Documents

Description

General part information

TMP421 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.

Technical Specifications

Parameters and characteristics for this part

Specification	TMP421AIDCNTG4

Accuracy - Highest	1.5 °C
Accuracy - Lowest	2.5 °C
Features	Programmable Limit, Output Switch, Shutdown Mode, One-Shot
Mounting Type	Surface Mount
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Type	SMBus
Package / Case	SOT-23-8
Package Name	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
Sensor Type	Digital, Local/Remote
Test Condition (Alternate) Maximum	125 ¯C
Test Condition (Alternate) Minimum	-40 °C
Test Condition (Primary) Maximum	85 °C
Test Condition (Primary) Minimum	15 °C
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	2.7 V

TMP421 Series

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

Part	Features	Resolution	Test Condition (Alternate) Maximum	Test Condition (Primary) Minimum	Test Condition (Alternate) Minimum	Test Condition (Primary) Maximum	Package Name	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Sensing Temperature - Remote (Max)	Sensing Temperature - Remote (Min)	Accuracy - Highest	Accuracy - Lowest	Output Type	Operating Temperature (Max)	Operating Temperature (Min)	Mounting Type	Sensing Temperature - Local (Max)	Sensing Temperature - Local (Min)	Package / Case	Sensor Type	Test Condition (Remote) Maximum	Test Condition (Remote) Extended Maximum	Test Condition (Local) Maximum	Test Condition (Local) Extended Minimum	Test Condition (Local) Minimum	Test Condition (Local) Extended Maximum	Test Condition (Remote) Extended Minimum	Test Condition (Remote) Minimum	Accuracy - Lowest (Remote)	Accuracy - Highest (Remote)	Accuracy - Highest (Local)	Accuracy - Lowest (Local)	Qualification	Grade	Test Condition (Min)	Test Condition (Max)
Texas Instruments TMP421AIDCNTG4	One-Shot Output Switch Programmable Limit Shutdown Mode	11 b	125 ¯C	15 °C	-40 °C	85 °C	SOT-23-8	5.5 V	2.7 V	191 °C	-64 °C	1.5 °C	2.5 °C	SMBus	125 °C	-40 °C	Surface Mount	125 °C	-40 °C	SOT-23-8	Digital Local/Remote
Texas Instruments TMP421AIDCNT	One-Shot Output Switch Programmable Limit Shutdown Mode	11 b	125 ¯C	15 °C	-40 °C	85 °C	SOT-23-8	5.5 V	2.7 V	191 °C	-64 °C	1.5 °C	2.5 °C	SMBus	125 °C	-40 °C	Surface Mount	125 °C	-40 °C	SOT-23-8	Digital Local/Remote
Texas Instruments TMP421AQDCNTQ1	One-Shot Output Switch Programmable Limit Shutdown Mode	12 b					SOT-23-8	5.5 V	2.7 V	127 °C	-40 °C			I2C SMBus	125 °C	-40 °C	Surface Mount	127 °C	-40 °C	SOT-23-8	Digital Local/Remote	85 °C	125 °C	85 °C	-40 °C	15 °C	125 °C	-40 °C	15 °C	5 °C	1 °C	1.5 °C	2.5 °C	AEC-Q100	Automotive
Texas Instruments TMP421AIDCNRG4	One-Shot Output Switch Programmable Limit Shutdown Mode	11 b	125 ¯C	15 °C	-40 °C	85 °C	SOT-23-8	5.5 V	2.7 V	191 °C	-64 °C	1.5 °C	2.5 °C	SMBus	125 °C	-40 °C	Surface Mount	125 °C	-40 °C	SOT-23-8	Digital Local/Remote
Texas Instruments TMP421AQDCNRQ1		12 b					SOT-23-8	5.5 V	2.7 V	125 °C	-40 °C	1 °C	5 °C	I2C SMBus	125 °C	-40 °C	Surface Mount	125 °C	-40 °C	SOT-23-8	Digital Local/Remote													AEC-Q100	Automotive	-40 °C	125 °C
Texas Instruments TMP421YZDT	One-Shot Output Switch Programmable Limit Shutdown Mode	11 b	125 ¯C	15 °C	-40 °C	85 °C	8-DSBGA	5.5 V	2.7 V	191 °C	-64 °C	1.5 °C	2.5 °C	SMBus	125 °C	-40 °C	Surface Mount	125 °C	-40 °C	8-UFBGA DSBGA	Digital Local/Remote
Texas Instruments TMP421AIDCNR	One-Shot Output Switch Programmable Limit Shutdown Mode	11 b	125 ¯C	15 °C	-40 °C	85 °C	SOT-23-8	5.5 V	2.7 V	191 °C	-64 °C	1.5 °C	2.5 °C	SMBus	125 °C	-40 °C	Surface Mount	125 °C	-40 °C	SOT-23-8	Digital Local/Remote
Texas Instruments TMP421YZDR	One-Shot Output Switch Programmable Limit Shutdown Mode	11 b	125 ¯C	15 °C	-40 °C	85 °C	8-DSBGA	5.5 V	2.7 V	191 °C	-64 °C	1.5 °C	2.5 °C	SMBus	125 °C	-40 °C	Surface Mount	125 °C	-40 °C	8-UFBGA DSBGA	Digital Local/Remote

Pricing

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CAD

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Documents

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