TMP461 High-Accuracy Remote and Local Temperature Sensor with Pin-Programmable Bus Address | TI.com

TMP461 (ACTIVE)

High-Accuracy Remote and Local Temperature Sensor with Pin-Programmable Bus Address

High-Accuracy Remote and Local Temperature Sensor with Pin-Programmable Bus Address - TMP461
 

Description

The TMP461 device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, microcontrollers, or field-programmable gate arrays (FPGAs). Temperature is represented as a 12-bit digital code for both local and remote sensors, giving a resolution of 0.0625°C. The two-wire serial interface accepts the SMBus communication protocol with up to nine different pin-programmable addresses.

Advanced features [such as series resistance cancellation, programmable nonideality factor (η-factor), programmable offset, programmable temperature limits, and a programmable digital filter] are combined to provide a robust thermal monitoring solution with improved accuracy and noise immunity.

The TMP461 is ideal for multi-location, high-accuracy temperature measurements in a variety of communication, computing, instrumentation, and industrial applications. The device is specified for operation over a supply voltage range of 1.7 V to 3.6 V, and a temperature range of –40°C to 125°C.

Features

  • Remote Diode Temperature Sensor Accuracy: ±0.75°C
  • Local Temperature Sensor Accuracy: ±1°C
  • Resolution for Local and Remote Channels: 0.0625°C
  • Supply and Logic Voltage Range: 1.7 V to 3.6 V
  • 35-µA Operating Current (1 SPS),
    3-µA Shutdown Current
  • Series Resistance Cancellation
  • η-Factor and Offset Correction
  • Programmable Digital Filter
  • Diode Fault Detection
  • Two-Wire and SMBus™ Serial Interface Compatible with Pin-Programmable Address
  • 10-Lead WQFN Package

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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)
TMP461 TMP411 TMP421 TMP422 TMP423 TMP451
Remote     Remote     Remote     Remote     Remote     Remote    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
1     2.5     2.5     2.5     2.5     1    
12     12     12     12     12     12    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
1.7     2.7     2.7     2.7     2.7     1.7    
3.6     5.5     5.5     5.5     5.5     3.6    
375     30     38     38     38     40    
Programmable Alert
Remote diode fault detection    
Programmable Alert
Shutdown    
Shutdown     Shutdown     Shutdown     Dynamic Averaging
Programmable Alert
Shutdown    
1     1     1     2     3     1    
9     4     9     4     2     1    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
QFN     SOIC
VSSOP    
DSBGA
SOT-23    
SOT-23     SOT-23     WSON    
10QFN: 4 mm2: 2 x 2(QFN)     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)     8SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)     See datasheet (WSON)    

Other qualified versions of TMP461

Version Part Number Definition
Space TMP461-SP Radiation tolerant, ceramic packaging and qualified for use in Space-based application

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