5366 Datasheet PDF - Allegro
| Part Number | 5366 | |
| Description | PHOTOELECTRIC SMOKE DETECTOR | |
| Manufacturers | Allegro | |
| Logo |  |
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5366
PHOTOELECTRIC SMOKE DETECTOR
WITH INTERCONNECT AND TIMER
C1 1
C2 2
DETECT 3
STROBE 4
+ SUPPLY 5 VDD
IRED 6
I/O 7
HORN1 8
16 TEST
15 HUSH
VSS 14 – SUPPLY
OSC. &
TIMING
13 TIMING RES.
12 OSC. CAP.
LOGIC
11 LED
HORN
DRIVER
10 FEEDBACK
9 HORN2
Dwg. PC-007
The selectable Hush Feature may be covered
by U.S. patent number Re. 33,920. Any sale
or use of the Hush Feature in a smoke alarm
in the U.S. would be a possible infringement
of this patent.
The A5366CA is a low-current BiCMOS circuit providing all of the
required features for a photoelectric type smoke detector. This device
can be used in conjunction with an infrared photoelectric chamber to
sense scattered light from smoke particles. Special features are
incorporated in the design to facilitate calibration and testing of the
finished detector. The device is designed to comply with Underwriters
Laboratories Specification UL217.
A variable-gain photo amplifier can be directly interfaced to an
infrared emitter/detector pair. The amplifier gain levels are determined
by two external capacitors that are then internally selected depending
on the operating mode. Low gain is selected during standby and timer
modes. During a local alarm this low gain is increased (internally) by
~10% to reduce false triggering. High gain is used during the push-
button test and during standby to periodically monitor the chamber
sensitivity.
The internal oscillator and timing circuitry keeps standby power to
a minimum by sensing for smoke every 10 seconds in a 100 µs
window. A special three-stage speedup sensing scheme is incorpo-
rated to minimize the time to an audible alarm and also to reduce false
triggering. Also, two consecutive cycles of degraded chamber sensitiv-
ity are required for a warning signal to occur.
The A5366CA is supplied in a low-cost 16-pin dual in-line plastic
package. It is rated for continuous operation over the temperature
range of -25°C to +75°C.
ABSOLUTE MAXIMUM RATINGS
(Voltages are referenced to VSS)
Supply Voltage Range,
VDD .................................... -0.5 V to +15 V
Input Voltage Range,
VIN ............................ -0.3 V to VDD + 0.3 V
Input Current, IIN ................................... 10 mA
Operating Temperature Range,
TA ..................................... -25°C to +75°C
Storage Temperature Range,
TS ................................... -55°C to +125°C
CAUTION: CMOS devices have input static
protection but are susceptible to damage if exposed
to extremely high static electrical charges.
FEATURES
s Interconnect Up to 50 Detectors
s Piezoelectric Horn Driver
s All Internal Low-Battery Detection
s Power-ON Reset
s Internal Timer & Control for Reduced Sensitivity
s Built-In Circuits to Reduce False Triggering
s 6 V to 12 V Operating Voltage Range
s ESD-Protection Circuitry on All Pins
s Temporal Horn Pattern
Always order by complete part number: A5366CA .
|
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5366
PHOTOELECTRIC SMOKE DETECTOR
with INTERCONNECT and TIMER
AC ELECTRICAL CHARACTERISTICS, continued.
Characteristic
Strobe Pulse Period
Strobe Pulse Width
IRED Pulse Period
IRED Pulse Width
IRED Rise Time
IRED Fall Time
I/O to Active Delay
I/O Charge Dump Duration
Rising Edge on I/O to Alarm
Horn Warning Pulse Period
Horn Warning Pulse Width
Horn ON Time
Horn OFF Time
Symbol
tst1
tst2
tst3
Test Conditions
No Local or Remote Smoke
After 1 of 3 Valid Samples
After 2 of 3 Valid Samples
and During Local Alarm
tst4 Remote Alarm
tst5 Chamber Test or Low Supply
Test, No Local Alarm
tst6 Pushbutton Test, No Alarm
tw(st)
tired1 No Local or Remote Smoke
tired2 After 1 of 3 Valid Samples
tired3 After 2 of 3 Valid Samples
and During Local Alarm
tired4
tired5
tired6
tw(ired)
tr(ired)
tf(ired)
td(io)
tdump
tr(io)
thorn
Remote Alarm
Chamber Test, No Local Alarm
Pushbutton Test, No Alarm
10% to 90%
90% to 10%
Local Alarm
End of Local Alarm or Test
No Local Alarm
Low Supply and Degraded
Chamber Sensitivity
tw(horn)
Low Supply and Degraded
Chamber Sensitivity
ton(horn)
toff1(horn)
toff2(horn)
Local or Remote Alarm
Local or Remote Alarm
Local or Remote Alarm
Test
Pin
4
4
4
4
4
4
4
6
6
6
6
6
6
6
6
6
7
7
7
8, 9
8, 9
8, 9
8, 9
8, 9
VDD
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
* Limits over the operating temperature range are based on characterization data.
Characteristics are production tested at +25°C only.
Typical values are at +25°C and are given for circuit design information only.
Min.
9.6
1.8
0.8
Limits
Typ. Max.
– 11.9
2.0 2.2
1.0 1.1
Units
s
s
s
7.2 8.0 8.9 s
38.9
–
47.1
s
300 336 370 ms
9.5 – 11.5 ms
9.6
–
11.9
s
1.8 2.0 2.2 s
0.8 1.0 1.1 s
7.2 8.0 8.9 s
38.9
–
47.1
s
300 336 370 ms
94 – 116 µs
– – 30 µs
– – 200 µs
– 0 –s
0.9 1.0 1.1 s
–
–
1.34
s
38.9
–
47.1
s
9.5 – 11.5 ms
450
450
1350
500
500
1500
550
550
1650
ms
ms
ms
www.allegromicro.com
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| Information | Total 12 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ 5366.PDF Datasheet ] | |
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