Photoelectric Smoke Detector
with Interconnect and Timer
A5366
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
DC ELECTRICAL CHARACTERISTICS at TA = –25°C to 75°C1. VSS = 0 V, in typical application (unless otherwise noted)
Characteristic
Symbol
Test Conditions
Test Pin
VDD
Min.
Typ.2
Max.
Units
Supply Voltage Range
VDD
5
–
6.0
–
12
V
Operating Supply Current
IDD
Average in standby mode, configured per
typical application
512
–
–
9
μA
During STROBE on, IRED off, configured per
typical application
5
12
–
–
2.0
mA
During STROBE on, IRED on, configured per
typical application
5
12
–
–
3.0
mA
Low-Level Input Voltage
VIL
7
9
–
–
1.5
V
10
9
–
–
2.7
V
16
9
–
–
7.0
V
15
9
–
–
0.5
V
High-Level Input Voltage
VIH
7
9
3.2
–
–
V
10
9
6.3
–
–
V
16
9
8.5
–
–
V
15
9
1.6
–
–
V
Input Leakage High
IIH
VIN = VDD, STROBE active, OSC CAP = VDD
1, 2
12
–
–
100
nA
VIN = VDD
3, 10, 12
12
–
–
100
nA
Input Leakage Low
IIL
VIN = VST, STROBE active, OSC CAP = VDD
1, 2, 3
12
–
–
–100
nA
VIN = VSS
10, 12
12
–
–
–100
nA
15, 16
12
–
–
–1.0
μA
Input Pull-Down Current
IIN
VIN = VDD
16, 15
9
0.25
–
10
μA
No local smoke, VIN = VDD
7
9
20
–
80
μA
No local smoke, VIN = 17 V
7
12
–
–
140
μA
Low-Level Output Voltage
VOL
IO = 10 mA
11
6.5
–
–
0.6
V
IO = 16 mA
8, 9
6.5
–
–
1.0
V
IO = 5 mA
13
6.5
–
0.5
–
V
High-Level Output Voltage
VOH
IO = –16 mA
8, 9
6.5
5.5
–
–
V
Strobe Output Voltage
VST
Inactive, IO = –1 μA4
12
VDD
– 0.1
––
V
Active, IO = 100 to 500 μA4
9
VDD
– 5.25
–
VDD
– 4.75
V
Line Regulation
ΔVST(ΔVDD)
Active, VDD = 6 to 12 V
4
–
–
–60
–
dB
Strobe Temperature
Coefficient
αST
VDD = 6 to 12 V
4
–
–
0.01
–
%/°C
IRED Output Voltage
VIRED
Inactive, IO = 1 μA, TA = 25°C
6
12
–
–
0.1
V
Active, IO = –6 mA, TA = 25°C
6
9
2.85
3.1
3.35
V
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