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TPS3803G15-Q1 Fiches technique(PDF) 10 Page - Texas Instruments

No de pièce TPS3803G15-Q1
Description  Voltage Detectors
Download  25 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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TPS3803G15-Q1 Fiches technique(HTML) 10 Page - Texas Instruments

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DD – Threshold Overdrive Voltage – V
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SENSE
Threshold Overdrive Voltage – V
VDD or SENSE
VIT
Overdrive
Voltage
Transient
Duration
VDD
TPS3803-01-Q1
SENSE
_____
RESET
GND
VIN
R1
R2
VIT[ = (1 + R1/R2)*1.226
Reset
TPS3803-01-Q1
TPS3803G15-Q1, TPS3805H33-Q1
SGLS228C – DECEMBER 2003 – REVISED SEPTEMBER 2015
www.ti.com
Feature Description (continued)
Figure 13. Using Adjustable Version
8.3.2 Transient Immunity
The TPS380x-Q1 devices are immune to short negative transients on the VDD and SENSE pins. Sensitivity to
transients is dependent on threshold overdrive as shown in Figure 15 and Figure 16. These graphs show the
duration that the transient is below VIT compared to the magnitude of the voltage drop below VIT, called the
threshold overdrive voltage. Any combination of transient duration and overdrive voltage which lies above the
curves will result in RESET being asserted low. Any transient which lies below the curves will be ignored by the
device.
Figure 14. Overdrive Voltage
Figure 15. Minimum Pulse Duration at VDD vs VDD
Figure 16. Minimum Pulse Duration at Sense vs Sense
Threshold Overdrive Voltage
Threshold Overdrive Voltage
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Product Folder Links: TPS3803-01-Q1 TPS3803G15-Q1 TPS3805H33-Q1


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