参数资料
型号: ADM1031ARQZ-R7
厂商: ON SEMICONDUCTOR
元件分类: 温度/湿度传感器
英文描述: DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 3Cel, RECTANGULAR, SURFACE MOUNT
封装: LEAD FREE, QSOP-16
文件页数: 20/30页
文件大小: 299K
代理商: ADM1031ARQZ-R7
ADM1031
http://onsemi.com
27
Table 21. Register 0y22 Fan Speed Configuration Register PowerOn Default = 55H
Bit
Name
R/W
Description
<3:0>
Normal/Min Spd 1
R/W
This nibble contains the normal speed value for Fan 1. When in automatic fan speed
control mode, this nibble contains the minimum speed at which Fan 1 runs. Default is
0x05 for 33% PWM duty cycle.
<7:4>
Normal/Min Spd 2
R/W
This nibble contains the normal speed value for Fan 2. When in automatic fan speed
control mode, this nibble contains the minimum speed at which Fan 2 runs. Default is
0x05 for 33% PWM duty cycle.
Table 22. Register 0y23 Fan Filter Register PowerOn Default = 50H
Bit
Name
R/W
Description
<7>
SpinUp Disable
R/W
When set to 1, disables fan spinup.
<6:5>
Ramp Rate
R/W
These bits set the ramp rate. (Default = 31 Hz)
00 = 1
01 = 2
10 = 4 (Default)
11 = 8
<4:2>
ADC Sample Rate
R/W
These bits set the sampling rate for the ADC.
000 = 87.5 Hz
001 = 175 Hz
010 = 350 Hz
011 = 700 Hz
100 = 1.4 kHz (Default)
101 = 2.8 kHz
110 = 5.6 kHz
111 = 11.2 kHz
<1>
Fan 2 Filter En
R/W
This bit enables fan filtering for Fan 2.
<0>
Fan 1 Filter En
R/W
This bit enables fan filtering for Fan 1.
Table 23. Register 0y24 Local Temp TMIN/TRANGE PowerOn Default = 41H
Bit
Name
R/W
Description
<7:3>
> Local Temp TMIN
R/W
Contains the minimum temperature value for automatic fan speed control based on
local temperature readings. TMIN can be programmed to positive values only in 4°C
increments. Default is 32°C.
00000 = 0°C
00001 = 4°C
00010 = 8°C
00011 = 12°C
|
01000 = 32°C (Default)
|
11110 = 120°C
11111 = 124°C
<2:0>
Local Temp TRANGE
R/W
This nibble contains the temperature range value for automatic fan speed control
based on the local temperature readings.
000 = 5°C
001 = 10°C (Default)
010 = 20°C
011 = 40°C
100 = 80°C
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