A5348CA

Ionization Smoke Detector
with Interconnect and Timer
A5348
7
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Timing Diagrams
(Not to scale)
OSC CAP Pin
Internal Clock
LED Pin
Smoke Sample
Standby Mode
Low Battery Test
t
osc
t
w(osc)
t
led1
LED on
t
w(led)
Test event
VDD
Low Battery Test
Pin
LED Pin
Horn Enable
Low Battery Condition
(Low battery)
t
led1
t
w(led)
LED off (high-Z)
t
w(horn)
t
horn
Timer Mode
LED Pin
t
osc
t
w(osc)
t
led2
t
w(led)
Internal Clock
Horn Enable
TIMER OUT Pin
Output off (High Z)
TIMER START Pin
t
timer
LED on
LED on
LED off (high-Z)
LED off (high-Z)
Ionization Smoke Detector
with Interconnect and Timer
A5348
8
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
OSC CAP Pin
Internal Clock
LED Pin
Smoke Sample
Horn Enable
t
osc(alarm)
6 clock cycles
Local Smoke Detection/Test Alarm Condition
I/O Pin
t
r(io)
(Output)
t
w(osc )
t
on(horn)
t
off(horn)
t
led3
t
w(led)
LED Pin
LED off (high-Z)
LED on
V
DETECTIN
< V
SEN SITIVITYSET
(smoke)
(no smoke )
Smoke Chamber
Smoke Sample
Horn Enable
I/O Pin
Remote Alarm Condition
(Input)
LED Pin
t
on( horn)
t
off(horn)
OSC CAP Pin
Internal Clock
t
osc(alarm)
t
w(osc)
I/O Pin
Test event
LED off (high-Z)
Ionization Smoke Detector
with Interconnect and Timer
A5348
9
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Copyright ©1990-2013, Allegro MicroSystems, LLC
Allegro MicroSystems, LLC reserves the right to make, from time to time, such de par tures from the detail spec i fi ca tions as may be required to
permit improvements in the per for mance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that
the information being relied upon is current.
Allegro’s products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the
failure of that life support device or system, or to affect the safety or effectiveness of that device or system.
The in for ma tion in clud ed herein is believed to be ac cu rate and reliable. How ev er, Allegro MicroSystems, LLC assumes no re spon si bil i ty for its use;
nor for any in fringe ment of patents or other rights of third parties which may result from its use.
For the latest version of this document, visit our website:
www.allegromicro.com
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Package A, 16-Pin DIP
Allegro MicroSystems offers an industry-leading range of ionization
and photoelectric smoke detector ICs. For a current listing, please visit
our website at:
www.allegromicro.com
Branded Face
10.92 MAX
0.38 MIN
5.33 MAX
+0.51
–0.38
0.13 MIN
C
SEATING
PLANE
16X
0.25
M C
2.54 BSC
7.62 BSC
A
A
Terminal #1 mark area
+0.25
–0.38
1.52
3.30
+1.65
–0.38
3.30
+0.76
–0.25
6.35
0.46±0.10
+0.64
–0.38
19.05
+0.10
–0.05
0.25
For Reference Only; not for tooling use (reference MS-001BB)
Dimensions in millimeters
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
21
16

A5348CA

Mfr. #:
Manufacturer:
Description:
IC SMOKE DETECTOR ION 16DIP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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