TMP423 Triple Remote and Local Temperature Sensor with N-Factor and Series-R Correction | TI.com

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 Digital temperature sensors

 
Device Type
Interface
Local Sensor Accuracy (Max) (+/- C)
Temp Resolution (Max) (bits)
Operating Temperature Range (C)
Supply Voltage (Min) (V)
Supply Voltage (Max) (V)
Supply Current (Max) (uA)
Features
Remote Channels (#)
Addresses
Rating
Package Group
Package Size: mm2:W x L (PKG)
TMP423 LM95234 TMP411 TMP421 TMP422 TMP451 TMP461 TMP468
Remote     Remote     Remote     Remote     Remote     Remote     Remote     Remote    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
2.5     2     2.5     2.5     2.5     1     1     0.35    
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    
38     800     30     38     38     40     375     375    
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    
3     4     1     1     2     1     1     8    
2     3     4     9     4     1     9     4    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
SOT-23 | 8     WSON | 14     SOIC | 8
VSSOP | 8    
DSBGA | 8
SOT-23 | 8    
SOT-23 | 8     WSON | 8     QFN | 10     DSBGA | 16
VQFN | 16    
8SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 8)     See datasheet (WSON)     8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
See datasheet (DSBGA)
8SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 8)    
8SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 8)     See datasheet (WSON)     10QFN: 4 mm2: 2 x 2 (QFN | 10)     See datasheet (DSBGA)
16VQFN: 9 mm2: 3 x 3 (VQFN | 16)