RE46C122
CMOS Ionization Smoke Detector ASIC with Interconnect and Timer Mode
R&E International
Product Specification
DC Electrical Characteristics – Continued
Test
Limits
Parameter
Offset Voltage
Symbol
VGOS1
VGOS2
VGOS3
VCM1
Pin
14,15
15,16
13,15
14,15
13,15
14,16
13
Test Conditions
Min
-50
-50
-50
2
Typ
Max Units
Guard Amplifier
50
50
mV
mV
mV
V
Guard Amplifier
Smoke Comparator
50
Common Mode Voltage
Guard Amplifier, Note 2
Smoke Comparator, Note 2
Guard Amplifier Outputs, Note 2
No Alarm to Alarm Condition
VDD-.5
VDD-2
.5
VCM2
V
Output Impedance
Hysteresis
ZOUT
10
kΩ
mV
VHYS
90
130
170
Note 1: Sample test only.
Note 2: Not 100% production tested.
Note 3: Production test at room with temperature guardbanded limits.
AC Electrical Characteristics at TA = 25°C, VDD=9V, OSCAP=.1uF, RBIAS=8.2MΩ, VSS=0V (unless
otherwise noted)
Limits
Max Units
Test
Pin
Min
1.34
37.5
9.4
9.4
32
Typ
1.67
41.5
10.5
10.5
40
Parameter
Oscillator Period
Symbol
TPER1
TPER2
TPW
Test Conditions
No Alarm Condition
12
12
2
S
mS
mS
mS
S
Alarm Condition
45.8
12.9
12.9
48
Oscillator Pulse Width
LED On Time
Operating
5
Operating
TLON
5
LED Off Time
Standby, No Alarm
TLOF1
TLOF2
TLOF3
THON1
THON2
THOF1
THOF2
THOF3
TIODMP
TIODLY1
5
Alarm Condition
5
.8
1
1.2
S
Timer Mode, No Alarm
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
5
8
10
12
S
Horn On Time
Horn Off Time
10,11
10,11
10,11
10,11
10,11
2
450
9.4
450
1.35
32
500
10.5
500
1.5
40
550
12.9
550
1.65
48
mS
mS
mS
S
S
IO Charge Dump Duration
IO Delay
1.34
1.67
3
2.0
S
2
S
IO Filter
IO pulse width guaranteed to be filtered.
IO as Input, No Local Alarm
2
TIOFILT
450
mS
Remote Alarm Delay
Timer Period
No Local Alarm, IO as input, From IO
active to Horn Active
2
TIODLY2
TTPER
.450
8
2.2
12
S
No Alarm
4
10
Min
Note 4 – See timing diagram for horn temporal pattern.
All timing except for TPER and TPW are guaranteed by functional tests.
Telephone 610.992.0727
Page 3 of 10
Facsimile 610.992.0734
E-mail: rande@randeint.com
DS-RE46C122-121806
This datasheet contains PROPRIETARY and CONFIDENTIAL information.
RANDE [ R & E INTERNATIONAL, INC. ]
