RE46C121 Datasheet, PDF (3/8 Pages) Microchip Technology – CMOS Ionization Smoke Detector ASIC with Interconnect

RE46C121
CMOS Ionization Smoke Detector ASIC with Interconnect
Product Specification
R&E International
AC Electrical Characteristics at TA = 25°C, VDD=9V, OSCAP=.1uF, RBIAS=8.2MΩ, VSS=0V (unless
otherwise noted)
Parameter
Oscillator Period
Oscillator Pulse Width
LED On Time
LED Off Time
Horn On Time
Horn Off Time
IO Charge Dump Duration
IO Delay
IO Filter
Remote Alarm Delay
Symbol
T_PER1
T_PER2
T_PW
T_LON
T_LOF1
T_LOF2
T_HON1
T_HON2
T_HOF1
T_HOF2
T_HOF3
T_IODMP
T_IODLY1
T_IOFILT
T_IODLY2
Test
Pin
12
12
5
5
5
5
10,11
10,11
10,11
10,11
10,11
2
2
2
2
Test Conditions
No Alarm Condition
Alarm Condition
Operating
Operating
Standby, No Alarm
Alarm Condition
Operating, Alarm Condition, Note 4
Low Battery, No Alarm
Operating, Alarm Condition, Note 4
Operating, Alarm Condition, Note 4
Low Battery, No Alarm
At Conclusion of Local Alarm or Test
From Start of Local Alarm to IO Active
IO pulse width guaranteed to be filtered.
IO as Input, No Local Alarm
No Local Alarm, IO as input, From IO
active to Horn Active
Min
1.34
37.5
9.1
9.1
32
.9
450
9.1
450
1.35
32
1.34
.450
Limits
Typ Max
1.67
2
41.5 45.8
10.5 12.9
10.5 12.9
40
48
1
1.1
500 550
10.5 12.9
500 550
1.5 1.65
40
48
1.67 2.0
0
450
Units
S
mS
mS
mS
S
S
mS
mS
mS
S
S
S
S
mS
2.2
S
Note 4 – See timing diagram for Horn Temporal Pattern
Telephone [phone]
Facsimile 610.992.0734
E-mail: [e-mail]
Page 3 of 8
DS-RE46C121-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.