RE46C126
CMOS Ionization Smoke Detector ASIC
R&E International
Product Specification
DC Electrical Characteristics at TA = 25°C, VDD=9V, OSCAP=.1uF, RBIAS=8.2MΩ, VSS=0V (unless
otherwise noted)
Limits
Typ Max Units
Test
Pin
Min
Parameter
Supply Voltage
Symbol
VDD
Test Conditions
Operating
6
6
6
12
6.5
9
V
uA
uA
V
Supply Current
RBIAS=8.2MΩ, OSCAP=.1uF
IDD1
4.5
4.5
4.5
RBIAS=8.2MΩ, OSCAP=.1uF;Vdd=12V
IDD2
6
Input Voltage High
Input Voltage Low
Input Leakage Low
VIH1
8
6.2
3
VIH2
2
No Local Alarm, IO as an Input
V
VIL1
8
2.7
1
V
VIL2
2
No Local Alarm, IO as an Input
VDD=9V, DETECT=VSS, 0-40% RH
V
ILDET1
15
-0.75
pA
VDD=9V, DETECT=VSS, 85% RH
Note 1
ILDET2
15
-1.50
pA
FEED=-10V
ILFD
8
-50
uA
pA
Input Leakage High
VDD=9V, DETECT=VDD, 0-40% RH
IHDET1
15
0.75
VDD=9V, DETECT=VDD, 85% RH
Note 1
IHDET2
15
1.50
pA
FEED=22V
IHFD
IIOL1
IIOL2
IIOHZ
VOH1
VOH2
VOL1
VOL2
VOL3
IIOH1
8
2
50
100
150
1
uA
uA
uA
uA
V
No Alarm, Vio=Vdd-2V
No Alarm, Vio=17V
Output Off
25
2
Output Off Leakage High
Output Voltage High
4,5
10,11
1
IOH=-16mA, VDD=7.2V
IOH=-30ua
6.3
8.5
V
Output Voltage Low
Output Current
IOL=16mA, VDD=7.2V
IOL=30ua
10,11
1,4
5
.9
.5
V
V
IOL=10mA, VDD=7.2V
Alarm, Vio=Vdd-2V or Vio=0V
3
V
2
-4
5
-16
mA
At Conclusion of Local Alarm or Test,
Vio=1V
IIODMP
2
mA
Low Battery Voltage
TA=-10 to 60ºC, Note 3
VLB
VSET1
VSET2
VGOS1
VGOS2
VGOS3
VCM1
6
7.2
47
7.5
50
7.8
53
V
%VDD
%VDD
mV
mV
mV
V
Internal Sensitivity Set Voltage
13
3
65.5
Offset Voltage
Guard Amplifier
14,15
15,16
13,15
14,15
13,15
14,16
13
-50
-50
-50
2
50
50
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
VHYS
90
130
170
mV
Note 1: Sample test only
Note 2: Not 100% production tested
Note 3: Production test at room with temperature guardbanded limits.
Telephone 610.992.0727
Page 2 of 8
Facsimile 610.992.0734
E-mail: rande@randeint.com
DS-RE46C126-010907
This datasheet contains PROPRIETARY and CONFIDENTIAL information.