ADM1033 - Thermal Monitor and Fan Speed (RPM) Controller

onsemi

Datasheet Details

Part number	ADM1033
Manufacturer	onsemi
File Size	416.29 KB
Description	Thermal Monitor and Fan Speed (RPM) Controller
Datasheet	ADM1033 Datasheet

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ADM1033 Thermal Monitor and Fan Speed (RPM) Controller The ADM1033 is a one channel remote- and local-temperature sensor and fan controller. The remote channel monitors the temperature of the remote thermal diode, which may be discrete 2N3904/6s or may be located on a microprocessor die. The device also monitors its own ambient temperature. The ADM1033 can monitor and control the speed of cooling fan. 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 ADM1033 communicates over a 2-wire SMBus 2.0 interface. An 8-level LOCATION input allows the user to choose between SMBus 1.