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ADM1033ARQ-REEL7 Scheda tecnica(PDF) 3 Page - Analog Devices |
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ADM1033ARQ-REEL7 Scheda tecnica(HTML) 3 Page - Analog Devices |
3 / 40 page ADM1033 Rev. 0 | Page 3 of 40 GENERAL DESCRIPTION The ADM1033 is a remote and local temperature sensor and fan controller. Its remote channel accurately monitors the temperature of a remote thermal diode, which can be a discrete 2N3904/6 or located on a microprocessor die. The device can monitor its own ambient temperature as well. The ADM1033 is also used to monitor and control the speed of a cooling fan. The user can program a target fan speed, or use the look-up table to input a temperature-to-fan speed profile. The look-up table can be configured to run the fan at discrete speeds (discrete mode) or to ramp the fan speed with tempera- ture (linear mode). The ADM1033 communicates over a 2-wire SMBus 2.0 inter- face. An 8-level LOCATION input allows the user to choose between SMBus 1.1 and SMBus 2.0. The ALERT output indicates error conditions. In addition, the THERM I/O signals overtemperature as an output and times THERM assertions as an input. Pin 8 can be configured as a reference input for the THERM (PROCHOT) input. |
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