Thermal Supervisor IC Packs Fan Control Circuit

Intended for CPU protection, the MIC284 thermal supervisor IC uses embedded thermal diodes similar to those found in Pentium III CPUs. It comes in 8-pin MSOPs ($1.66 each/1,000) and 8-pin SOICs ($1.54) and features an over-temperature alarm output that can be used as either a hardware shutdown signal or a fan control signal. Other features include local and remote temperature measurement, an 8-bit sigma-delta A/D converter, and fail-safe response to diode faults.