LM95234CISD

• Mold temperature accurate sensory 4 remote IC or diode junction and local temperature
• TruTherm BJT test compensation technology accurately senses thermal diodes for submicron processes
• Programmable digital filter and analog front-end filter
• LSb with 0.125°C temperature resolution
• 0.03125°C lowest digit digital filtering remote temperature resolution enabled
• 127.875°C/-128°C and 0°C/255°C remote control range
• Remote diode fault detection, model selection and offset correction
• Mask and status register support
• 3 programmable^ TCRIT outputs, programmable to share hysteresis and fault queues
• Programmable conversion rate and downtime mode one-time changeover control
• SMBus 2.0 compatible interface, supported TIMEOUT
• Three levels of address pins
• 14-pin LLP package

illustrate

LM95234 is an 11-bit, 2-wire System Management Bus (SMBus) interface digital temperature sensor that monitors the temperature of four remote diodes with great accuracy, as well as their own temperature, including the patent-pending remote diode TruTherm BJT test beta compensation technology. These four remote diodes can be connected to external devices such as microprocessors, graphics processors or the 2N3904 series of diodes. LM95234 Semiconductor's TruTherm BJT test compensation technology enables sensing 90 nm maybe 65 nm Process thermal diodes are accurate.

While LM95234 reports temperatures in the range of 127.875°C/-128°C and 0°C/255°C in the two different formats. While the LM95234^TCRIT1,^TCRIT3 TCRIT2 and output channels trigger any shielding beyond their corresponding programmable limits, they can be used to shut down the system, turn on the interrupt function of the system fan or microcontroller. The current state of ^TCRIT1, ^TCRIT2 and ^TCRIT3 pins can read state registers back. Shielded registers can be used for further control of the ^TCRIT output.

Two LM95234 remote temperature channels have programmable digital filters, while the other two remote channels utilize fault queues to minimize temperature spikes encountered in unwanted ^ TCRIT events.

For optimal flexibility and accuracy, each LM95234 channel includes sub-micron process or 2N3904 diode sizing and offset correction registers. A three-level address pin allows up to 3 LM95234s to be connected to the same SMBus master. The LM95234 includes 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