Micrel Semiconductor has developed a two-zone thermal supervisor IC for thermal management using embedded thermal diodes such as those found in Intel's Pentium III CPU.
The MIC284 is part of a growing family of system and thermal management products from Micrel. Available in 8-pin MSOP and SOIC packaging, the MIC284 features local and remote temperature measurement, I2C/SMBus compatibility, a programmable interrupt output, an over-temperature alarm output, and an address selection input. The overtemperature output can be used as either a hardware shutdown signal or a fan control signal.
The MIC284's operating power supply current is a portable-friendly 0,35 mA, and the quiescent current in shutdown mode is only 1,0 µA. Two package options are available: the MIC284BM in an 8-pin SOIC, and the MIC284BMM in a smaller 8-pin MSOP.
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