A5366
Photoelectric Smoke Detector
with Interconnect and Timer
DC ELECTRICAL CHARACTERISTICS (continued)
at T
A
= –25°C to 75°C
1
,
V
SS
= 0 V, in typical application (unless otherwise noted)
Characteristic
Line Regulation
IRED Temperature Coefficient
High-Level Output Current
OFF Leakage Current High
OFF Leakage Current Low
Low-Battery Alarm Threshold
Common Mode Voltage
Smoke Comparator
Reference Voltage
1
Limits
2
Typical
Symbol
ΔV
IRED(ΔVDD)
α
IRED
I
OH
I
OZ
I
OZ
V
DD(th)
V
IC
V
REF
Test Conditions
Active, V
DD
= 6 to 12 V
V
DD
= 6 to 12 V
V
DD
= Alarm, I/O active,V
O
= V
DD
– 2 V
V
O
= V
DD
V
O
= V
SS
Test Pin
6
6
7
11, 13
11, 13
5
V
DD
–
9
12
12
–
-
-
Min.
–
–
–4.0
–
–
6.9
V
DD
–4
V
DD
– 3.7
Typ.
2
–35
0.40
–
–
–
7.2
–
–
Max.
–
–
–
1.0
–1.0
7.5
V
DD
–2
V
DD
– 3.3
Units
dB
%/°C
mA
μA
μA
V
V
V
Any alarm condition
Any alarm condition
1, 2, 3
Internal
over the operating temperature range are based on characterization data. Characteristics are production tested at 25°C only.
values are at 25°C and are given for circuit design information only.
AC ELECTRICAL CHARACTERISTICS
at T
A
= –25°C to 75°C
1
. V
SS
= 0 V, in typical application (unless otherwise noted)
Characteristic
Oscillator Period
Symbol
t
osc
t
led1
t
led3
LED Pulse Period
t
led4
t
led6
t
led7
LED Pulse Width
t
w(led)
t
st1
t
st2
t
st3
STROBE Pulse Period
t
st4
t
st5
t
st6
STROBE Pulse Width
t
w(st)
No local or remote smoke
After 1 of 3 valid samples
After 2 of 3 valid samples and during local
alarm
Remote smoke only
Chamber test or low battery test, no local
alarm
Pushbutton test, induced alarm
No local or remote smoke
Local smoke
Remote smoke only
Pushbutton test, induced alarm
Timer mode, no alarm
Test Conditions
Test Pin
12
11
11
11
11
11
11
4
4
4
4
4
4
4
V
DD
9
9
9
9
9
9
9
9
9
9
9
9
9
9
Min.
9.4
39
0.45
–
0.45
9.67
9.5
9.6
1.8
0.8
7.2
38.9
225
9.5
Typ.
2
10.5
–
0.50
No LED
Pulses
0.50
10.75
–
–
2.0
1.0
8.0
–
252
–
Max.
11.5
48
0.55
–
0.55
11.83
11.5
11.9
2.2
1.1
8.9
47.1
278
11.5
Units
ms
s
s
s
s
s
ms
s
s
s
s
s
ms
ms
Continued on the next page…
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
SENSITRON [ SENSITRON ]
