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TMP442 Datasheet(PDF) 17 Page - Texas Instruments

Part # TMP442
Description  TMP4719 High-Accuracy 3-Channel (2-Remote and 1-Local) 1.2V Logic Compatible Temperature Sensor With η-Factor
PDF  63 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TMP442 Datasheet(HTML) 17 Page - Texas Instruments

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is below the T_CRIT limit – T_CRIT Hysteresis value or the device is reset. T_CRIT has no mask bit. Note
that reading the Status Register sets the ALERT mask bit of the Configuration Register if any flag in the Status
Register, except the ADC_Busy flag and Remote Diode Fault flag, is set. The ALERT mask bit does not mask
the T_CRIT pin, which means the clearance of ALERT mask bit has no influence on T_CRIT pin, and T_CRIT
has no mask bit. There are separate T_CRIT Limit values and status register flags for the remote and local
temperature measurements.
Figure 7-7 shows the behavior of the T_CRIT pin and flags in interrupt mode.
-40
-20
0
20
40
60
T_CRIT Status FLAG
80
100
120
140
160
Temperature Conversion Complete
Time
Temperature
T_CRIT Limit
T_CRIT Limit - Hysteresis
I2C Status
Register Read
Controller Clears
ALERT Mask bit
ALERT
Mask bit
T_CRIT Pin
Figure 7-7. T_CRIT Output Timing Diagram-Interrupt Mode
When the TMP4719 is in comparator mode, the status register flag is only cleared at the end of a conversion
cycle if the temperature measurement is below the T_CRIT limit – T_CRIT Hysteresis value. Figure 7-8 shows
the behavior of the T_CRIT pin and flags in comparator mode.
www.ti.com
TMP4719
SBOSAJ7A – OCTOBER 2025 – REVISED DECEMBER 2025
Copyright © 2025 Texas Instruments Incorporated
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Product Folder Links: TMP4719



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