RE46C144
CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode
Preliminary Product Specification
R&E International
AC Electrical Characteristics at TA =-25° to 75°, VDD=9V, VSS=0V, Component Values from Figure 2 ;
R9=100KΩ, R12=10MΩ, C5= 1.5nF(unless otherwise noted)
Test
Pin
12
11,4
11
11
11
11
4,6
4,6
4,6
4,6
4,6
4,6
4,6
6
8,9
8,9
8,9
8,9
7
7
7
7
Parameter
Oscillator Period
LED and STROBE On Time
LED Period
Symbol
T
POSC
T
ON1
T
PLED1
T
PLED2
T
PLED3
T
PLED4
Test Conditions
No Alarm Condition
Operating
Standby, No Alarm
Local Alarm Condition
Timer Mode, No Local Alarm
Remote Alarm Only
Standby, No Alarm
Standby, After 1 Valid Smoke
Sample
Standby, After 2 Consecutive Valid
Smoke Samples
In Local Alarm – (3 Consecutive
Valid Smoke Samples)
In Remote Alarm
Pushbutton Test
Chamber Test or Low Battery
Test, No Alarms
Operating
Operating, Alarm Condition, Note 1
Low Battery or Failed Chamber
Test , No Alarm
Operating, Alarm Condition, Note 1
Low Battery or Failed Chamber
Test, 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, From IO Active
Horn Active
No Alarm Condition, Note 2
Min
9.4
9.4
39
.6
9.6
9.6
2.42
1.21
1.21
9.7
300
39
94
227
9.5
76
39
.91
Limits
Typ
Max
10.5
10.5
43
.67
10.75
10.75
2.7
1.33
1.33
10.5
336
11.5
11.5
47
.74
11.8
11.8
2.96
1.47
1.47
11.8
370
47
104
252
10.5
84
43
115
277
11.5
92
47
1.46
0
600
Units
mS
mS
S
S
S
S
S
S
S
S
S
mS
S
uS
mS
mS
mS
S
S
S
mS
S
Min
LED IS NOT ON
STROBE and IRED Pulse
Period
T
PER1
T
PER1A
T
PER1B
T
PER2
T
PER3
T
PER4
T
PER5
IRED On Time
Horn On Time
T
ON2
T
HON1
T
HON2
Horn Off Time
T
HOF1
T
HOF3
IO Charge Dump Duration
IO Delay
IO Filter
T
IODMP
T
IODLY1
T
IOFILT
Remote Alarm Delay
Timer Period
T
IODLY2
T
TPER
.75
7
8.5
1.65
10
Note 1 – See timing diagram for Horn Temporal Pattern
Note 2 – During the timer mode the LED Period is 10.5 seconds. The LED period will return to a 43 seconds at the conclusion of the timer
mode.
Note 3 - T
POSC
and T
ON2
are 100% production tested. All other timing is guaranteed by functional testing.
Typical values are for design information and are not guaranteed.
Limits over the specified temperature range are not production tested and are based on characterization data.
Telephone 610.992.0727
Page 4 of 12
E-mail: rande@randeint.com
DS-RE46C144-121806
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
Facsimile 610.992.0734
RANDE [ R & E INTERNATIONAL, INC. ]
