RE46C145 데이터 시트보기 (PDF) - Microchip Technology
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RE46C145 Datasheet PDF : 26 Pages
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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
LED and STROBE
On Time
TPOSC
TON1
12
9.4
10.5
11.5
11,4
9.4
10.5
11.5
ms No alarm condition
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
TPER1
4,6
9.6
10.75 11.8
s Standby, no alarm
and IRED Pulse
Period
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
TPER4
TPER5
4,6
7.2
8
8.9
s In Remote Alarm
4,6
300
336
370
ms Push-button test
4,6
39
47
s Chamber Test or Low Battery
Test, no alarms
IRED On Time
Horn On Time
TON2
THON1
THON2
6
94
104
115
µs Operating
8,9
450
500
550
ms Operating, alarm condition,
Note 1
8,9
9.5
10.5
11.5
ms Low Battery or Failed Chamber
test , no alarm
Horn Off Time
IO Charge
Dump Duration
THOF1
THOF2
THOF3
TIODMP
8,9
450
500
550
ms Operating, alarm condition,
Note 1
8,9
1.35
1.5
1.65
s Operating, alarm condition,
Note 1
8,9
39
43
47
s Low Battery or Failed Chamber
test, no alarm
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.
2009-2012 Microchip Technology Inc.
DS22181C-page 5
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