Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

TPS3824-50DBVTG4 Fiches technique(PDF) 11 Page - Texas Instruments

No de pièce TPS3824-50DBVTG4
Description  Voltage Monitor With Watchdog Timer
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS3824-50DBVTG4 Fiches technique(HTML) 11 Page - Texas Instruments

Back Button TPS3824-50DBVTG4 Datasheet HTML 7Page - Texas Instruments TPS3824-50DBVTG4 Datasheet HTML 8Page - Texas Instruments TPS3824-50DBVTG4 Datasheet HTML 9Page - Texas Instruments TPS3824-50DBVTG4 Datasheet HTML 10Page - Texas Instruments TPS3824-50DBVTG4 Datasheet HTML 11Page - Texas Instruments TPS3824-50DBVTG4 Datasheet HTML 12Page - Texas Instruments TPS3824-50DBVTG4 Datasheet HTML 13Page - Texas Instruments TPS3824-50DBVTG4 Datasheet HTML 14Page - Texas Instruments TPS3824-50DBVTG4 Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 29 page
background image
TPS3820, TPS3823, TPS3823A, TPS3824, TPS3825, TPS3828
www.ti.com
SLVS165K – APRIL 1998 – REVISED NOVEMBER 2015
Feature Description (continued)
8.3.4 Watchdog Timer (WDI)
TPS3820/3/4/8 devices have a watchdog timer that must be periodically triggered by either a positive or negative
transition at WDI to avoid a reset signal being issued. When the supervising system fails to retrigger the
watchdog circuit within the time-out interval, ttout, RESET becomes active for the time period td. This event also
reinitializes the watchdog timer.
The watchdog timer can be disabled by disconnecting the WDI pin from the system. If the WDI pin detects that it
is in a high-impedance state the TPS3820/3/4/8 will generate its own WDI pulse to ensure that RESET does not
assert. If this behavior is not desired place a 1k
Ω resistor from WDI to ground. This resistor will help ensure that
the TPS3820/3/4/8 detects that WDI is not in a high-impedance state.
In applications where the input to the WDI pin is active (transitioning high and low) when the TPS3820/3/4/8 is
asserting RESET, RESET will be stuck at a logic low after the input voltage returns above VIT–. If the application
requires that input to WDI be active when the reset signal is asserted, then either the A version of the device
should be used or a FET to decouple the WDI signal. The A version does not latch the reset signal to the
asserted state if a WDI pulse is received while RESET is asserted. An external FET decouples the WDI signal by
disconnecting the WDI input when RESET is asserted. For more details on this, see Decoupling WDI During
Reset Event for more details. The A version of the device does not need this FET but does operate in circuits
that have it. Therefore, the A version is backwards-compatible with the non-A versions.
8.4 Device Functional Modes
Table 1. Function Table
INPUTS
OUTPUTS
MR (1)
VDD > VIT
RESET
RESET(2)
L
0
L
H
L
1
L
H
H
0
L
H
H
1
H
L
(1)
TPS3820/3/5/8
(2)
TPS3824/5
Copyright © 1998–2015, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Links: TPS3820 TPS3823 TPS3824 TPS3825 TPS3828


Numéro de pièce similaire - TPS3824-50DBVTG4

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
TPS3824-50DBVTG4 TI-TPS3824-50DBVTG4 Datasheet
217Kb / 14P
[Old version datasheet]   PROCESSOR SUPERVISORY CIRCUITS
TPS3824-50DBVTG4 TI-TPS3824-50DBVTG4 Datasheet
295Kb / 17P
[Old version datasheet]   PROCESSOR SUPERVISORY CIRCUITS
TPS3824-50DBVTG4 TI-TPS3824-50DBVTG4 Datasheet
384Kb / 17P
[Old version datasheet]   PROCESSOR SUPERVISORY CIRCUITS
TPS3824-50DBVTG4 TI1-TPS3824-50DBVTG4 Datasheet
635Kb / 20P
[Old version datasheet]   PROCESSOR SUPERVISORY CIRCUITS
TPS3824-50DBVTG4 TI1-TPS3824-50DBVTG4 Datasheet
837Kb / 20P
[Old version datasheet]   Processor Supervisory Circuits
More results

Description similaire - TPS3824-50DBVTG4

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
TPS3820 TI1-TPS3820_16 Datasheet
937Kb / 29P
[Old version datasheet]   Voltage Monitor With Watchdog Timer
TPS3820-33-Q1 TI1-TPS3820-33-Q1_15 Datasheet
1Mb / 24P
[Old version datasheet]   Voltage Monitor With Watchdog Timer
TPS3820-33-Q1 TI1-TPS3820-33-Q1_18 Datasheet
1Mb / 27P
[Old version datasheet]   Voltage Monitor With Watchdog Timer
logo
Renesas Technology Corp
ICS9WDV3501B RENESAS-ICS9WDV3501B Datasheet
249Kb / 10P
   VOLTAGE MONITOR/WATCHDOG TIMER CIRCUIT
05/30/08
logo
Integrated Device Techn...
ICS9WDV3501B IDT-ICS9WDV3501B Datasheet
106Kb / 9P
   VOLTAGE MONITOR/WATCHDOG TIMER CIRCUIT
logo
Rohm
BD37A19FVM ROHM-BD37A19FVM_13 Datasheet
555Kb / 18P
   Voltage Detector ICs with Watchdog Timer Built-in watchdog timer
BD87A29FVM ROHM-BD87A29FVM Datasheet
323Kb / 6P
   Voltage Detector with Watchdog Timer
BD87A34FVM ROHM-BD87A34FVM Datasheet
321Kb / 6P
   Voltage Detector with Watchdog Timer
BD37A41FVM ROHM-BD37A41FVM Datasheet
322Kb / 6P
   Voltage Detector with Watchdog Timer
BD87A41FVM ROHM-BD87A41FVM Datasheet
321Kb / 6P
   Voltage Detector with Watchdog Timer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com