Electronic IC Chip Texas Instruments/TI LM95214CISDX/NOPB

ECAD Module PCB Symbol,Footprint & 3D Model
Supply and Demand Status Limited
Fake Threat In the Open Market 30 pct.
Popularity Medium
Win Source Part Number 137003-LM95214CISDX/NOPB
Case / Package 14-WSON (4x4)
Mounting SMD (SMT)
Temperature Range - Operating -40°C to 140°C
Resolution 10 b
Supply Voltage - Operating 3 V to 3.6 V
Output Type SMBus
Features One-Shot, Output Switch, Programmable Limit, Shutdown Mode, Standby Mode
Accuracy - Highest (Lowest) ±2°C
Sensor Type Digital, Local/Remote
Status Active
Packaging Reel - TR
Manufacturer Texas Instruments
Categories Sensors, Transducers
Testing Conditions -40°C to 125°C
Sensing Temperature - Remote -40°C to 125°C
Sensing Temperature - Local -40°C to 125°C


Features for the LM95214
Accurately Senses Die Temperature of 4 Remote ICs or Diode Junctions and Local Temperature
Local Temperature Accuracy ±2.0°C (Maximum)
Remote Diode Temperature Accuracy ±1.1°C (Maximum)
Supply Voltage: 3 V to 3.6 V
Average Supply Current (1-Hz Conversion Rate) 0.57 mA (Typical)
Programmable Digital Filters and Analog Front-End Filter
0.125°C LSB Temperature Resolution
0.03125°C LSB Remote Temperature Resolution With Digital Filter Enabled
Signed Format: +127.875°C/–128°C Remote Range
Unsigned Format: 0°C/255°C Remote Range
Remote Diode Fault Detection, Model Selection, and Offset Correction
Mask and Status Register Support
3 Programmable TCRIT Outputs With Programmable Shared Hysteresis and Fault-Queue
Programmable Conversion Rate and Shutdown Mode One-Shot Conversion Control
SMBus 2.0 Compatible Interface, Supports TIMEOUT
Three-Level Address Pin
Description for the LM95214
The LM95214 device is an 11-bit digital temperature sensor with a 2-wire SystemManagement Bus (SMBus) interface that can very accurately monitor the temperature of four remotediodes as well as its own temperature. The four remote diodes can be external devices such asmicroprocessors, graphics processors that target the ideality of a 2N3904 transistor ordiode-connected 2N3904s.

The LM95214 reports temperature in two different formats for +127.875°C/–128°C range and0°C/255°C range. The LM95214 TCRIT1, TCRIT2 andTCRIT3 outputs are triggered when any unmasked channel exceeds itscorresponding programmable limit and can be used to shutdown the system, to turn on the system fansor as a microcontroller interrupt function. The current status of theTCRIT1, TCRIT2, and TCRIT3pins can be read back from the status registers. Mask registers are available for further controlof the TCRIT outputs.

Two LM95214 remote temperature channels have programmable digital filters while theother two remote channels use a fault-queue to minimize unwanted TCRITevents when temperature spikes are encountered.

For optimum flexibility and accuracy, each LM95214 channel includes registers for offsetcorrection. A three-level address pin allows connection of up to 3 LM95214s to the same SMBusmaster. The LM95214 includes power saving functions such as: programmable conversion rate, shutdownmode, and disabling of unused channels.