参数资料
型号: ADM1033ARQZ
厂商: Analog Devices, Inc.
英文描述: Thermal Monitor and Fan Speed (RPM) Controller
中文描述: 热监测和风扇转速(RPM)控制器
文件页数: 3/40页
文件大小: 1164K
代理商: ADM1033ARQZ
ADM1033
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
Rev. 0 | Page 3 of 40
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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