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RE46C152 Datasheet - Page 4

Download or read online Microchip Technology RE46C152 CMOS Ionization Smoke Detector ASIC With Interconnect, Timer Mode And Tone Select pdf datasheet.



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RE46C152
CMOS Ionization Smoke Detector ASIC with Interconnect,
Timer Mode and Tone Select
Product Specification
AC Electrical Characteristics at TA = 25°C, VDD=9V, OSCAP=.1uF, RBIAS=8.2MΩ, VSS=0V (unless
otherwise noted)
Parameter
Symbol
Oscillator Period
T
T
Oscillator Pulse Width
LED On Time
LED Off Time
T
T
T
Horn On Time
T
T
T
Horn Off Time
T
T
T
T
IO Charge Dump Duration
T
IO Delay
T
IO Filter
T
Remote Alarm Delay
T
Timer Period
T
Note 4 – See timing diagram for horn temporal pattern.
All timing except for T
and T
are guaranteed by functional tests.
PER
PW
© 2009 Microchip Technology Inc.
Test
Pin
Test Conditions
12
No Alarm Condition
PER1
12
Alarm Condition
PER2
T
5
Operating
PW
T
5
Operating
LON
5
Standby, No Alarm
LOF1
5
Alarm Condition
LOF2
5
Timer Mode, No Alarm
LOF3
Operating, Alarm Condition, Note 4
10,11
HON1
Tone = VDD or Float
10,11
Low Battery, No Alarm
HON2
10,11
Operating, Alarm Condition, TONE=Low
HON3
Operating, Alarm Condition, Note 4
10,11
HOF1
Tone = VDD or Float
Operating, Alarm Condition, Note 4
10,11
HOF2
Tone = VDD or Float
10,11
Operating, Alarm Condition, TONE=Low
HOF3
10,11
Low Battery, No Alarm
HOF4
2
At Conclusion of Local Alarm or Test
IODMP
From Start of Local Alarm Condition to
2
IODLY1
IO Active
IO pulse width guaranteed to be filtered.
2
IOFILT
IO as Input, No Local Alarm
No Local Alarm, IO as input, From IO
2
IODLY2
active to Horn Active
4
No Alarm
TPER
R&E International
A Subsidiary of Microchip Technology Inc.
Limits
Min
Typ
Max
Units
1.34
1.67
2
S
37.5
41.5
45.8
mS
9.4
10.5
12.9
mS
9.4
10.5
12.9
mS
32
40
48
S
.8
1
1.2
S
8
10
12
S
450
500
550
mS
9.4
10.5
12.9
mS
150
166
183
mS
450
500
550
mS
1.35
1.5
1.65
S
75
83
92
mS
32
40
48
S
1.34
1.67
2.0
S
No
S
Delay
450
mS
.450
2.2
S
6.2
8
9.8
Min
DS22175A-page 4

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