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TMP303EDRLT Datasheet(PDF) 10 Page - Texas Instruments

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No. de Pieza. TMP303EDRLT
Descripción  Easy-To-Use, Low-Power, Low-Supply Temperature Range Monitor In Micropackage
Descarga  22 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TMP303EDRLT Datasheet(HTML) 10 Page - Texas Instruments

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50 C
°
0 C
°
60 C
°
0
50
100
V
S
Temperature
3.3V
1.4V
50 C
°
0 C
°
60 C
°
0
50
100
V
S
Temperature
3.3V
1.4V
0
50
100
0
Time(ms)
OUT=High
AtPower-on
OUT=High
AtPower-on
OUT=High
AfterConversion
OUT=Low
AfterConversion
Conversion
Time
t=35ms(max)
D
HYST
=High
HYST
=High
SOH=Low
SET0
SET1
(a)
Time(ms)
(b)
0
50
100
0
Conversion
Time
t=35ms(max)
D
HYST
=High
HYST
=High
SOH=Low
SET0
SET1
1
1
10
TMP303
SBOS486G – JULY 2009 – REVISED JULY 2017
www.ti.com
Product Folder Links: TMP303
Submit Documentation Feedback
Copyright © 2009–2017, Texas Instruments Incorporated
Feature Description (continued)
8.3.2 TMP303 Power Up and Timing
At device power up, the TMP303 exerts OUT = high, and typically requires 26 ms to return to a low state only if
the temperature falls within the hysteresis window set by HYSTSET0 and HYSTSET1.
The tolerance of the thermal response time is largely a result of the differences in conversion time, which varies
from 20 ms to 35 ms; likewise, this conversion does not take place after a power cycle until the supply voltage
has reached a level of at least 1.4 V. This sequence is illustrated in Figure 11.
Figure 11. TMP303A Start-Up Delay vs Output Voltage (HYSTSET0 = HYSTSET1 = VS)
After the TMP303 powers up, all successive thermal response results for the device are achieved in a time frame
of 0.985 s to 1 s. This period is the minimum time frame required for the push-pull output (OUT) to change its
state from high to low (or conversely) when the device is active.


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