Time (S)

-5

0

5

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25

30

20

40

60

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20

TMP103

SBOS545D – FEBRUARY 2011 – REVISED DECEMBER 2018

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Typical Application (continued)

8.2.3 Application Curve

Table 9 shows the step response of the TMP103 device to a submersion in an oil bath of 100ºC from room

temperature (25ºC). The time-constant, or the time for the output to reach 63% of the input step, is 1.4 s. The

time-constant result depends on the printed-circuit-board (PCB) that the TMP103 device is mounted. For this

test, there are eight TMP103 devices soldered to a two-layer PCB that measured 2 in × 2 in, and the PCB

thickness is 64 mils.

Figure 17. Temperature vs Time