Datasheet

RE46C122
CMOS Ionization Smoke Detector ASIC with R&E International
Interconnect and Timer Mode
A Subsidiary of Microchip Technology Inc.
Product Specification
© 2009 Microchip Technology Inc. DS22173B-page 2
DC Electrical Characteristics at TA = 25°C, VDD=9V, OSCAP=.1uF, RBIAS=8.2MΩ, VSS=0V (unless
otherwise noted)
Limits
Parameter Symbol
Test
Pin Test Conditions
Min Typ Max Units
Supply Voltage
V
DD
6
Operating
6 12 V
I
DD1
6
RBIAS=8.2MΩ, OSCAP=.1uF
5 6.5 uA
Supply Current
I
DD2
6
RBIAS=8.2MΩ, OSCAP=.1uF;Vdd=12V
9 uA
V
IH1
8 6.2 4.5 V
V
IH2
2 No Local Alarm, IO as an Input 3 V
Input Voltage High
V
IH3
1 4.5 V
V
IL1
8 4.5 2.7 V
V
IL2
2 No Local Alarm, IO as an Input 1 V
Input Voltage Low
V
IL3
1 2.5 V
IL
DET1
15
VDD=9V, DETECT=VSS, 0-40% RH
-0.75 pA
IL
DET2
15
VDD=9V, DETECT=VSS, 85% RH
Note 1
-1.50 pA
Input Leakage Low
IL
FD
8
FEED=-10V
-50 uA
IH
DET1
15
VDD=9V, DETECT=VDD, 0-40% RH
0.75 pA
IH
DET2
15
VDD=9V, DETECT=VDD, 85% RH
Note 1
1.50 pA
IH
FD
8
FEED=22V
50 uA
Input Leakage High
I
IOL2
2
No Alarm, Vio=17V
150 uA
Output Off Leakage High
I
IOHZ
4,5
Outputs Off
1 uA
Input Pull Down Current
I
PD1
1
TSTART=9V
20 50 80 uA
Output High Voltage
V
OH1
10,11
IOH=-16mA, VDD=7.2V
6.3 V
V
OL1
10,11
IOL=16mA, VDD=7.2V
.9 V
V
OL2
4
IOL=500ua
.5 V
Output Low Voltage
V
OL3
5
IOL=10mA, VDD=7.2V
1 V
I
IOL1
2
No Alarm, Vio=Vdd-2V
25 60 uA
I
IOH1
2
Alarm, Vio=Vdd-2V or Vio=0V
-4 -16 mA
Output Current
I
IODMP
2
At Conclusion of Local Alarm or Test,
Vio=1V
5 mA
Low Battery Voltage
V
LB
6
T
A
=-10 to 60ºC, Note 3
7.2 7.5 7.8 V
V
SET1
13 48.5 50 51.5 %V
DD
Internal Sensitivity Set Voltage
V
SET2
3 65.5 %V
DD