MAX1669 Datasheet | Maxim Integrated

19-1574; Rev 0; 1/00 Fan Controller and Remote Temperature Sensor with SMBus Serial Interface General Description The MAX1669 fan controller includes a precise digital thermometer that reports the temperature of a remote sensor. The remote sensor is a diode-connected transistor- typically a low-cost, easily mounted 2N3906 PNP type- replacing conventional thermistors or thermocouples. Remote accuracy is ±3°C for transistors from multiple manufacturers, with no calibration needed. The MAX1669 has an independent fan controller with a lowcurrent logic output requiring external power ponents to interface to a DC brushless fan. The fan controller has two modes of operation: a low-frequency...