參數(shù)資料
型號: V62/09607-01XE
廠商: TEXAS INSTRUMENTS INC
元件分類: 模擬信號調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO6
封裝: GREEN, PLASTIC, SOT-23, 6 PIN
文件頁數(shù): 18/18頁
文件大?。?/td> 651K
代理商: V62/09607-01XE
THERMOSTAT MODE (TM1/TM0)
POLARITY (POL)
FAULT QUEUE (F1/F0)
www.ti.com .......................................................................................................................................................................................... SBOS454 – NOVEMBER 2008
The Thermostat Mode bits of the TMP122 indicate to the device whether to operate in Comparator Mode,
Interrupt Mode or Interrupt Comparator Mode. For more information on Comparator and Interrupt Mode, see text
HIGH and LOW limit registers. The bit assignments for thermostat mode are described in Table 7. Power on
default is comparator mode.
Table 7. Mode Settings
TM1
TM0
MODE OF OPERATION
0
Comparator mode
0
1
Interrupt mode
1
0
Interrupt comparator mode
1
Reserved
The Polarity Bit of the TMP122 adjusts the polarity of the ALERT pin output. By default, POL = 0 and the ALERT
pin will be active LOW, as shown in Figure 8. For POL = 1 the ALERT Pin will be active HIGH, and the state of
the ALERT Pin is inverted.
Figure 8. ALERT Output Transfer Function Diagrams
A fault condition occurs when the measured temperature exceeds the limits set in the THIGH and TLOW registers.
The Fault Queue is provided to prevent a false alert due to environmental noise and requires consecutive fault
measurements to trigger the alert function of the TMP122. Table 8 defines the number of consecutive faults
required to trigger a consecutive alert condition. Power-on default for F1/F0 is 0/0.
Copyright 2008, Texas Instruments Incorporated
9
Product Folder Link(s): TMP122-EP
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