參數(shù)資料
型號: L9704
廠商: 意法半導體
英文描述: OCTAL SUPPLY CONTACT MONITORING CIRCUIT
中文描述: 八路電源監(jiān)控電路聯(lián)系
文件頁數(shù): 5/8頁
文件大?。?/td> 171K
代理商: L9704
Theinternalclampingdiodesatthecontactmonitor-
inginputs,togetherwith theexternalcontactseries
resistors R
IN
, allows the device to withstand tran-
sients atthecontactconnection.Thecontactseries
resistorR
IN
limits the input current at the transient.
The dynamic behaviourof the circuit is defined by
the times t
do
andt
dTS
. When the contact becomes
open, the input capacitor C
IN
must be charged
throughthe resistor R
IN
. In this casethe total delay
timemay alsobeinfluencedbythetime constantR
IN
C
IN
. The delaytime t
dTS
, whendisabling thedevice
isdefinedonlybytheinternalcircuitry. Inbothcases,
anexternaloutputcapacitancelessthan50pFisas-
sumed, the internal output capacitances of the
three-statebuffers areless than5pF.
Figure 2
: The ContactSenseInputConnectionwith theContactEquivalent Circuit.
Figure 3
:The OutputVoltageas a Functionof the Input Resistance at the CorrespondingContact Sense
Input.
L9704
5/8
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L9704D 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:OCTAL SUPPLY CONTACT MONITORING CIRCUIT
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