AEC-Q100 Automotive 1Ch Remote Temperature Sensor - TMP421-Q1

TMP421-Q1 (ACTIVE)

AEC-Q100 Automotive 1Ch Remote Temperature Sensor

 

Description

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.

The TMP421-Q1, TMP422-Q1, and TMP423-Q1 are all available in an 8-pin SOT-23 package.

Features

  • AEC-Q100 Qualified with the Following Results
    • Temperature Grade 1: –40°C to +125°C
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • SOT23-8 Package
  • ±1°C Remote Diode Sensor (Maximum)
  • ±1.5°C Local Temperature Sensor (Maximum)
  • Series Resistance Cancellation
  • n-Factor Correction
  • Two-Wire I2C or SMBus™ Compatible Serial Interface
  • Multiple Interface Addresses
  • Diode Fault Detection
  • RoHS Compliant and No Sb/Br

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Parametrics Compare all products in Remote / Multi-channel Temperature Sensors

 
Remote Channel
Local Sensor Accuracy (Max) (+/- C)
Remote Sensor Accuracy (Max) (+/- C)
Remote Diode Temp Range for Listed Accuracy (C)
Remote Temp Resolution (Max) (bits)
Remote Sensor Correction
Temp Resolution (Max) (bits)
Operating Temperature Range (C)
Supply Voltage (Min) (V)
Supply Voltage (Max) (V)
Supply Current (Typ) (uA)
Interface
Features
Rating
Package Group
Package Size: mm2:W x L (PKG)
TMP421-Q1 TMP422-Q1 TMP423-Q1
1    2    3   
1.5    1.5    1.5   
1    1    1   
-40 to 150    -40 to 150    -40C to 150C   
12    12    12   
Series Resistance Cancellation
n-Factor Correction   
Series Resistance Cancellation
n-Factor Correction   
Series Resistance Cancellation
n-Factor Correction   
12    12    12   
-40 to 125    -40 to 125    -40 to 125   
2.7    2.7    2.7   
5.5    5.5    5.5   
32    32    32   
SMBus    SMBus    SMBus   
One shot conversion control
Programmable conversion rate
Remote diode fault detection
Shutdown
Thermal diode input stage filtering   
One shot conversion control
Programmable conversion rate
Remote diode fault detection
Shutdown
Thermal diode input stage filtering   
One shot conversion control
Programmable conversion rate
Remote diode fault detection
Shutdown
Thermal diode input stage filtering   
Automotive    Automotive    Automotive   
SOT-23    SOT-23    SOT-23   
8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)    8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)    8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   

Other qualified versions of TMP421-Q1

Version Part Number Definition
Catalog TMP421 TI's standard catalog product

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