参数资料
型号: ADM1029ARQZ-R7
厂商: ON Semiconductor
文件页数: 40/50页
文件大小: 402K
描述: IC SENSOR 2TEMP/FAN CTRL 24QSOP
产品变化通告: QSOP 24ld Pkg (MSL) Change 17/Jun/2010
标准包装: 1,000
功能: 风扇控制,温度监控器
传感器类型: 内部和外部
感应温度: 0°C ~ 100°C,外部传感器
精确度: ±1°C 本地,±3°C 远程
拓扑: ADC,风扇控制,寄存器库
输出类型: 开路漏极
输出警报:
输出风扇:
电源电压: 3 V ~ 5.5 V
工作温度: 0°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-QSOP
包装: 带卷 (TR)
ADM1029
http://onsemi.com
40
Table 32. REGISTER 88H, 89H, 8AH TEMP X* T
RANGE
/T
HYST
 (POWER-ON DEFAULT 51H)
Bit
Name
R/W
Description
<3:0>
Temp x* T
RANGE
R/W
This nibble contains the temperature range over which automatic fan
speed control operates based on the Temp x* measured temperature.
Only a limited number of temperature ranges are supported as follows:
Bits <3:0>
T
RANGE
0000
5癈
0001
10癈
0010
20癈
0011
40癈
0100
80癈
<7:4>
Temp x* T
HYST
R/W
This nibble allows programmability of the Hysteresis level around the
temperature at which the fan being controlled by Temp x* will switch on in
automatic fan speed control mode. Values from 0癈 to 15癈 are possible.
If a value other than 0癈 is programmed as a Hysteresis value, the fan will
switch on when Temp x* goes above TMIN, but will remain on until
Temp x* falls below T
MIN
-T
HYST
. Between T
MIN
-T
HYST
 and T
MIN
 the fan
will run at the programmed minimum pulsewidth in the Fan x* Speed 1
register.
* x denotes the number of the temperature channel. Register 88h is for the Local temperature channel, 89h is for Remote 1 Temp (D1), 8Ah
is for Remote 2 Temp (D2).
Table 33. REGISTER 90H, 91H, 92H  TEMP X* HIGH LIMIT (POWER-ON DEFAULT 80?/SPAN>C FOR LOCAL SENSOR,
100?/SPAN>C FOR REMOTE SENSORS)
Bit
Name
R/W
Description
<7:0>
Temp x* High Limit
R/W
This register contains the high limit value for the Temp x* measurement.
* x denotes the number of the temperature channel. Register 90h is for the Local temperature channel. 91h is for Remote 1 Temp (D1), 92h
is for Remote 2 Temp (D2).
Table 34. REGISTER 98H, 99H, 9AH  TEMP X* LOW LIMIT (POWER-ON DEFAULT 60?/SPAN>C FOR LOCAL SENSOR,
70?/SPAN>C FOR REMOTE SENSORS)
Bit
Name
R/W
Description
<7:0>
Temp x* Low Limit
R/W
This register contains the low limit value for the Temp x* measurement.
* x denotes the number of the temperature channel. Register 98h is for the Local temperature channel. 99h is for Remote 1 Temp (D1), 9Ah
is for Remote 2 Temp (D2).
Table 35. REGISTER A0H, A1H, A2H  TEMP X* MEASURED VALUE (POWERON DEFAULT 00H)
Bit
Name
R/W
Description
<7:0>
Temp x* Value
R
This register contains the actual Temp x* measured value.
* x denotes the number of the temperature channel. Register A0h is for the Local temperature channel. A1h is for Remote 1 Temp (D1), A2h
is for Remote 2 Temp (D2).
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