ADM1034

ADM1034 Thermal Monitor and Fan Speed (RPM) Controller The ADM1034 is a dual-channel remote- and local-temperature sensor and fan controller. The remote channels monitor the temperature of two remote thermal diodes, which may be discrete 2N3904/6s or may be located on a microprocessor die. The device also monitors its own ambient temperature. The ADM1034 can monitor and control the speed of two cooling fans. The user can program a target fan speed, or else use the look-up table to input a temperature-to-fan speed profile. The look-up table can be configured to run the fans at discrete speeds (discrete mode) or to ramp the fan speed with temperature (linear mode). The ADM1034 communicates over a 2-wire SMBus 2.0 interface. An 8-level LOCATION input allows the user to choose between SMBus 1.1 and SMBus 2.0. An ALERT output indicates error conditions. The THERM I/O signals overtemperature as an output and times THERM assertions as an input. Pin 8 can be configured as a reference for the THERM (PROCHOT) input. Features  1 Local and 2 Remote Temperature Channels  1C Accuracy on Local and Remote Channels  Automatic Remote Temperature Channels, Up to 1 kW  Fast (Up to 64 Measurements per Second)  SMBus 2.0, 1.1, and 1.0 Compliant  SMBus Address Input/LOCATION Input to UDID  Programmable Over/Undertemperature Limits  Programmable Fault Queue  SMBusALERT Output  Fail-Safe Overtemperature Comparator Output  Fan Speed (RPM) Controller  Look-up Table for Temperature-to-Fan...