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TMP442 数据表(PDF) 39 Page - Texas Instruments

部件名 TMP442
功能描述  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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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

TMP442 数据表(HTML) 39 Page - Texas Instruments

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8.22 Diode_Fault (Address = 1Bh) [reset = 00h]
This register is used to indicate whether either of the remote channels have a diode improperly connected.
A diode fault is identified when diode short condition occurs. When diode short is detected on any channel,
the respective remote channel temperature conversion result gets is 0000h. Short bit in Diode_Fault is set to 1
and Alert pin is asserted (if no channel masks of both remote channels are set in Interrupt Mode). Short bit in
Diode_Fault is unset when diode short condition clears. Alert pin can be cleared by reading Diode_Fault register
and Alert Masks of both remote channels are set in both interrupt Mode and Comparator Mode, which is a
special case.
Diode open condition is identified as DP open and DN open or connected to GND. When diode open condition
occurs, the respective remote channel temperature conversion result gets is 0000h. Open bit in Diode_Fault is
set to 1 while Alert pin is NOT asserted. Open bit in Diode_Fault is unset when diode open condition clears
(diode gets connected back and a conversion happens that identifies it).
Return to Register Map.
Figure 8-22. Diode_Fault Register
7
6
5
4
3
2
1
0
Reserved
Short
Ch2_Open
Ch1_Open
Reserved
R-00h
R-0h
R-0h
R-0h
R-0h
Table 8-24. Diode_Fault Register Field Descriptions
Bit
Field
Type
Reset
Description
7:4
Reserved
R
00h
Reserved
3
Short
R
0h
This bit, when flagged to 1b, indicates remote channel 1 and(or)
remote channel 2 are(is) shorted.
2
Ch2_Open
R
0h
This bit, when flagged to 1b, indicates remote channel 2 has a
open condition.
1
Ch1_Open
R
0h
This bit, when flagged to 1b, indicates remote channel 1 has a
open condition.
0
Reserved
R
0h
Reserved
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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