参数资料
型号: TMP401AIDGKT
厂商: Texas Instruments
文件页数: 14/28页
文件大小: 881K
描述: IC TEMP SENSOR DGTL OUT 8-MSOP
标准包装: 250
功能: 温度监控系统(传感器)
传感器类型: 内部和外部
感应温度: -40°C ~ 125°C
精确度: ±3°C 本地(最大),±5°C 远程(最大)
拓扑: ADC,比较器,寄存器库
输出类型: 2 线 SMBus?
输出警报:
输出风扇:
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 带卷 (TR)
其它名称: 296-32448-2
TMP401AIDGKT-ND
TMP401
SBOS371A  AUGUST 2006  REVISED OCTOBER 2007
www.ti.com
14
CONSECUTIVE ALERT REGISTER
The value in the Consecutive Alert Register (address 22h)
determines    how    many    consecutive    out-of-limit
measurements must occur on a measurement channel
before the ALERT
 signal is activated. The value in this
register does not affect bits in the Status Register. Values
of one, two, three, or four consecutive conversions can be
selected; one conversion is the default. This function
allows additional filtering for the ALERT
  pin. The
consecutive alert bits are shown in Table 8.
Table 8. Consecutive Alert Register
CONSECUTIVE ALERT REGISTER
C2
C1
C0
NUMBER OF CONSECUTIVE
OUT-OF-LIMIT MEASUREMENTS
0
0
0
1
0
0
1
2
0
1
1
3
1
1
1
4
NOTE: Bit 7 of the Consecutive Alert Register controls the
enable/disable of the timeout function. See the Timeout
Function section for a description of this feature.
THERM HYSTERESIS REGISTER
The THERM Hysteresis Register stores the hysteresis
value used for the THERM
 pin alarm function. This register
must be programmed with a value that is less than the
Local Temperature High Limit Register value, Remote
Temperature High Limit Register value, Local THERM
Limit Register value, or Remote THERM Limit Register
value; otherwise, the respective temperature comparator
will not trip on the measured temperature falling edges.
Allowable hysteresis values are shown in Table 9. The
default hysteresis value is 10癈, whether the device is
operating in the standard or extended mode setting.
Table 9. Allowable THERM Hysteresis Values
THERM HYSTERESIS VALUE
TEMPERATURE
(5C)
TH[11:4]
(STANDARD BINARY)
(HEX)
0
0000 0000
00
1
0000 0001
01
5
0000 0101
05
10
0000 1010
0A
25
0001 1001
19
50
0011 0010
32
75
0100 1011
4B
100
0110 0100
64
125
0111 1101
7D
127
0111 1111
7F
150
1001 0110
96
175
1010 1111
AF
200
1100 1000
C8
225
1110 0001
E1
255
1111 1111
FF
Table 10. THERM Hysteresis Register Format
THERM HYSTERESIS REGISTER (Read = 21h, Write = 21h)
BIT #
D7
D6
D5
D4
D3
D2
D1
D0
BIT NAME
TH11
TH10
TH9
TH8
TH7
TH6
TH5
TH4
POR VALUE
0
0
0
0
1
0
1
0
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