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PDF ( 数据手册 , 数据表 ) 5348

零件编号 5348
描述 SMOKE DETECTOR WITH INTERCONNECT AND TIMER
制造商 Allegro MicroSystems
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5348 数据手册, 描述, 功能
5348
SMOKE DETECTOR
WITH INTERCONNECT AND TIMER
TIMER START 1
I/O 2
LOW-V SET 3
TIMER OUT 4
LED 5
+ SUPPLY 6 V DD
TIMING RES. 7
FEEDBACK 8
LOGIC
OSC. &
TIMING
HORN
DRIVER
16 GUARD 2
15 DETECT. IN
14 GUARD1
13
SENSITIVITY
SET
12 OSC. CAP.
11 HORN 2
10 HORN1
VSS 9 – SUPPLY
Dwg. PC-004
The A5348CA is a low-current, CMOS circuit providing all of the
required features for an ionization-type smoke detector. A networking
capability allows as many as 125 units to be interconnected so that if
any unit senses smoke, all units will sound an alarm. In addition,
special features are incorporated to facilitate alignment and test of the
finished smoke detector. This device is designed to comply with
Underwriters Laboratories Specification UL217.
The internal oscillator and timing circuitry keeps standby power to
a minimum by powering down the device for 1.66 seconds and sensing
smoke for only 10 ms. Every 24 on/off cycles, a check is made for low
battery condition. By substituting other types of sensors, or a switch
for the ionization detector, this very-low power device can be used in
numerous other battery-operated safety/security applications.
The A5348CA is supplied in a low-cost, 16-pin dual in-line plastic
package. It is rated for continuous operation over the temperature
range of 0°C to +50°C.
ABSOLUTE MAXIMUM RATINGS
(Voltages are referenced to VSS)
Supply Voltage Range,
VDD ................................ -0.5 V to +15 V
Reverse Battery (10.5 V) ....................... 20 s
Input Voltage Range,
VIN ........................ -0.3 V to VDD + 0.3 V
Input Current, IIN ............................... 10 mA
Operating Temperature Range,
TA ..................................... 0°C to +50°C
Storage Temperature Range,
TS ............................... -55°C to +125°C
CAUTION: CMOS devices have input static protection
but are susceptible to damage when exposed to
extremely high static electrical charges.
FEATURES
s Interconnect Up to 125 Detectors
s Piezoelectric Horn Driver
s Guard Outputs for Detector Input
s Pulse Testing for Low Battery
s Power-ON Reset
s Internal Reverse Battery Protection
s Internal Timer & Control for Reduced Sensitivity
s Built-In Hysteresis Reduces False Triggering
Always order by complete part number: A5348CA .







5348 pdf, 数据表
5348
SMOKE DETECTOR
with INTERCONNECT
and TIMER
16
0.280
0.240
Dimensions in Inches
(controlling dimensions)
9
0.014
0.008
0.430
MAX
0.300
BSC
1
0.070
0.045
0.210
MAX
0.015
MIN
0.022
0.014
16
7.11
6.10
0.775
0.735
0.100
BSC
8
0.005
MIN
0.150
0.115
Dimensions in Millimeters
(for reference only)
9
Dwg. MA-001-16A in
0.355
0.204
10.92
MAX
7.62
BSC
1
1.77
1.15
5.33
MAX
19.68
18.67
2.54
BSC
8
0.13
MIN
0.39
MIN
0.558
0.356
NOTES:
1. Lead thickness is measured at seating plane or
below.
2. Lead spacing tolerance is non-cumulative.
3. Exact body and lead configuration at vendor’s
option within limits shown.
3.81
2.93
Dwg. MA-001-16A mm
Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail
specifications as may be required to permit improvements in the design of its products.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems,
Inc. assumes no responsibility for its use; nor for any infringements of patents or other rights of third parties
which may result from its use.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000














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