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RE46C145S16F Datasheet(PDF) 5 Page - Microchip Technology |
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RE46C145S16F Datasheet(HTML) 5 Page - Microchip Technology |
5 / 26 page 2009-2012 Microchip Technology Inc. DS22181C-page 5 RE46C145 AC ELECTRICAL CHARACTERISTICS AC Electrical Characteristics: Unless otherwise indicated, all parameters apply at TA = -25°C to +75°C, VDD =9V, VSS = 0V, Component Values from Typical Application; R9 =100 K, R12 =10 M, C5 = 1.5 nF Parameter Symbol Test Pin Min Typ Max Units Test Conditions Oscillator Period TPOSC 12 9.4 10.5 11.5 ms No alarm condition LED and STROBE On Time TON1 11,4 9.4 10.5 11.5 ms Operating LED Period TPLED1 11 39 43 47 s Standby, no alarm TPLED2 11 .45 .5 .55 s Local alarm condition TPLED3 11 9.6 10.75 11.8 s Timer mode, no local alarm TPLED4 11 LED IS NOT ON s Remote alarm only STROBE and IRED Pulse Period TPER1 4,6 9.6 10.75 11.8 s Standby, no alarm TPER1A 4,6 1.8 2 2.2 s Standby, after one valid smoke sample TPER1B 4,6 .9 1 1.1 s Standby, after two consecutive valid smoke samples TPER2 4,6 .9 1 1.1 s In Local Alarm (three consecu- tive valid smoke samples) TPER3 4,6 7.2 8 8.9 s In Remote Alarm TPER4 4,6 300 336 370 ms Push-button test TPER5 4,6 39 47 s Chamber Test or Low Battery Test, no alarms IRED On Time TON2 6 94 104 115 µs Operating Horn On Time THON1 8,9 450 500 550 ms Operating, alarm condition, Note 1 THON2 8,9 9.5 10.5 11.5 ms Low Battery or Failed Chamber test , no alarm Horn Off Time THOF1 8,9 450 500 550 ms Operating, alarm condition, Note 1 THOF2 8,9 1.35 1.5 1.65 s Operating, alarm condition, Note 1 THOF3 8,9 39 43 47 s Low Battery or Failed Chamber test, no alarm IO Charge Dump Duration TIODMP 7 .9 1.46 s At the conclusion of the Local Alarm or Test IO Delay TIODLY1 7 0 s From start of Local Alarm to IO Active IO Filter TIOFILT 7 600 mSs IO pulse-width ensured to be filtered. IO as input, no local alarm Remote Alarm Delay TIODLY2 7 1.05 2.0 s No local alarm, from IO Active to Horn Active Timer Period TTPER 7 8.5 10 Min No alarm condition, Note 2 Note 1: See timing diagram for Horn Temporal Pattern 2: During the Timer mode, the LED period is 10.5 seconds. The LED period will return to 43 seconds at the conclusion of the Timer mode. 3: TPOSC and TON2 are 100% production tested. All other timing is ensured by functional testing. 4: Typical values are for design information and are not ensured. |
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