LM95214CISDX

• Accurate sensory death 4 remote IC or diode junction and local temperature temperature
• Programmable digital filters and analog front-end filters
• 0.125°C, LSB temperature resolution
• Enables 0.03125°C LSB digital filter remote temperature resolution
• 127.875°C/-128°C and 0°C/255°C remote range
• Remote diode fault detection, mode selection and offset correction
• Mask and status register support
• 3 programmable^ TCRIT outputs are programmable to share hysteresis and fault queues
• Programmable slew rate and shutdown mode, one-time changeover control
• SMBus 2.0 compatible interface, supported Timeout
• Three levels of address pins
• 14-pin LLP package

illustrate

LM95214 is an 11-bit digital temperature sensor with a two-wire System Management Bus (SMBus) interface that can monitor the temperature of the four remote diodes as well as their own temperature very accurately. Four remote diodes can be used for external devices such as microprocessors, graphics processors, a 2N3904 transistor or a diode connection to the ideal target of the 2N3904 series.

LM95214 reported temperatures in two different formats in the 127.875°C/-128°C temperature range and 0°C/255°C range. LM95214^TCRIT1,^TCRIT2^TCRIT3 outputs trigger any east-window incident channel that exceeds its corresponding programmable limit and can be used to shut down the interrupt function of the system, steering system fan, or microcontroller. The status of ^ TCRIT1,^ TCRIT2 and ^ TCRIT3 pins can be read back from the status register. Shielded registers can be used to further control the ^ TCRIT output.

Two LM95214 remote temperature channels are programmable digital filters, while the other two remote channels utilize fault queues to minimize unnecessary^ TCRIT activity when temperature spikes are encountered.

For optimal flexibility and accuracy, offset correction registers are offset per LM95214 channel. A three-level address pin allows up to 3 LM95214s to be connected to the same SMBus master. LM95214 include power-saving features such as programmable slew rate, shutdown mode, and disabling unused channels.

Key specifications:

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• Processor/computer system thermal management
  (e.g. laptops, desktops, workstations, servers)
• Electronic test equipment
• Office electronics