TMP423 (ACTIVE)

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

Triple Remote and Local Temperature Sensor with N-Factor and Series-R Correction - TMP423
Datasheet
 

Description

The TMP421, TMP422, and TMP423 are remote 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 FPGAs.

Remote accuracy is ±1°C for multiple IC 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, TMP422, and TMP423 include series resistance cancellation, programmable non-ideality factor, wide remote temperature measurement range (up to +150°C), and diode fault detection.

The TMP421, TMP422, and TMP423 are all available in a SOT23-8 package. The TMP421C is also available in a DSBGA (WCSP) package.

Features

  • SOT23-8 and DSBGA (WCSP) PACKAGES
  • ±1°C REMOTE DIODE SENSOR (MAX)
  • ±1.5°C LOCAL TEMPERATURE SENSOR (MAX)
  • SERIES RESISTANCE CANCELLATION
  • n-FACTOR CORRECTION
  • TWO-WIRE/SMBus™ 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)
TMP423 LM95234 TMP411 TMP421 TMP422 TMP451 TMP461 TMP468
3    4    1    1    2    1    1    8   
2.5    2    2.5    2.5    2.5    1    1    0.35   
1    0.875    1    1    1    1    0.75    0.75   
-40 to 150    60 to 100    -40 to 150    -40 to 150    -40 to 150    -55 to 150    -55 to 150    -55 to 150   
12    13    12    12    12    12    12    13   
Series Resistance Cancellation
n-Factor Correction   
Beta Compensation
TruTherm   
Series Resistance Cancellation
n-Factor Correction   
Series Resistance Cancellation
n-Factor Correction   
Series Resistance Cancellation
n-Factor Correction   
n-Factor Correction    Offset Correction Register
Series Resistance Cancellation
n-Factor Correction   
Offset Correction Register
Series Resistance Cancellation
n-Factor Correction   
12    11    12    12    12    12    12    13   
-40 to 125    -40 to 140    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
2.7    2.7    2.7    2.7    2.7    1.7    1.7    1.7   
5.5    5.5    5.5    5.5    5.5    3.6    3.6    3.6   
400    570    400    400    400    35    35    67   
I2C
SMBus   
I2C
SMBus   
I2C
SMBus   
I2C
SMBus   
I2C
SMBus   
I2C
SMBus   
I2C
SMBus   
I2C
SMBus   
Shutdown    One shot conversion control
Programmable Alert
Programmable conversion rate
Remote diode fault detection
Shutdown
Thermal diode input stage filtering   
Programmable Alert
Shutdown   
Shutdown    Shutdown    Dynamic Averaging
Programmable Alert
Shutdown   
Programmable Alert
Remote diode fault detection   
One shot conversion control
Programmable Alert
Programmable conversion rate
Remote diode fault detection   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
SOT-23    WSON    SOIC
VSSOP   
DSBGA
SOT-23   
SOT-23    WSON    QFN    DSBGA
VQFN   
8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)    See datasheet (WSON)    8SOIC: 29 mm2: 6 x 4.9(SOIC)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
See datasheet (DSBGA)
8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)   
8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)    See datasheet (WSON)    10QFN: 4 mm2: 2 x 2(QFN)    See datasheet (DSBGA)
16VQFN: 9 mm2: 3 x 3(VQFN)   

Other qualified versions of TMP423

Version Part Number Definition
Automotive TMP423-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects