900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Allegro

A5367 Datasheet Preview

A5367 Datasheet

Ionization Smoke Detector

No Preview Available !

A5367
Ionization Smoke Detector
with Interconnect and Timer
Features and Benefits
Low average standby current for long battery life
Interconnect up to 125 detectors
Piezoelectric horn driver
Guard outputs for detector input
Pulse testing for low battery
Power-on reset (POR)
Internal reverse battery protection
Timer (Hush) mode for enabling reduced sensitivity period
Built-in hysteresis reduces false triggering
Temporal horn pattern, per UL217, NFPA72, and ISO8201
UL Recognized for UL217 or UL268 applications
Package: 16-pin DIP (suffix A):
Description
The A5367 is a low-current, BiCMOS 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 their alarm. In addition, special features are incorporated
to facilitate alignment and test of the finished smoke detector.
The device is Recognized by Underwriters Laboratories for
use in smoke alarms that comply with Standard UL217 or
UL268, per file #S2113.
The internal oscillator and timing circuitry keep standby power
to a minimum by powering down the device for 1.66 seconds
and sensing for smoke for only 10 ms. Every 24 on-off cycles,
a check is made for a 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 A5367 is supplied in a low-cost 16-pin dual in-line plastic
package (DIP). It is rated for continuous operation over the
temperature range of –10°C to 60°C. The Pb (lead) free version
(suffix –T) has 100% matte tin leadframe plating.
Not to scale
Typical Application
50 kΩ
To / from
other units
9V
Timer
Mode
1
200 Ω 2
C3
4
330 Ω 5
200 kΩ
TIMER START
GUARD2
I/O DETECT IN
A5367
LOW-V SET
GUARD1
TIMER OUT
SENSITIVITY SET
LED OSC CAP
16
15
14
13
12
8.2 MΩ
6 VDD
7 TIMING RES
11
HORN2
10
HORN1
1 μF 8 FEEDBACK
9
VSS
B
200 k Ω
Push
to Test
A
0.1 μF
A Use an external resistor to adjust
sensitivity for a particular smoke chamber.
B Select resistor to reduce sensitivity
during Timer mode.
C A resistor to VSS or VDD may
be added to this pin to modify
low battery voltage threshold.
D Value of component will vary, based on
the piezoelectric horn used.
1.5 MΩ
D
220 kΩ
D
0.001 μF
D
26110.9 Rev. I




Allegro

A5367 Datasheet Preview

A5367 Datasheet

Ionization Smoke Detector

No Preview Available !

A5367
Ionization Smoke Detector
with Interconnect and Timer
Selection Guide
Part Number
A5367CA-T
A5367CA
Pb-Free
Yes
Packing
25 pieces per tube
Absolute Maximum Ratings*
Characteristic
Symbol
Notes
Rating
Units
Supply Voltage Range
VDD Referenced to VSS
–0.5 to 15
V
Input Voltage Range
VIN Referenced to VSS
–0.3 to VDD+ 0.3 V
Reverse Battery Condition Duration
tRBAT
10.5 V
20 s
Input Current
IIN
10 mA
Operating Ambient Temperature
TA
–10 to 60
ºC
Junction Temperature
TJ(max)
150 ºC
Storage Temperature Range
Tstg
–55 to 125
ºC
* CAUTION: BiCMOS devices have input static protection but are susceptible to damage when exposed to extremely high static electrical charges.
THERMAL CHARACTERISTICS
Characteristic
Symbol
Test Conditions*
Package Thermal Resistance
RθJA 4-layer PCB based on JEDEC standard
*Additional thermal information available on Allegro website.
Value Units
38 ºC/W
Pin-out Diagram
TIMER START 1
I/O 2
LOW-V SET 3
TIMER OUT 4
LED 5
VDD 6
TIMING RES 7
FEEDBACK 8
16 GUARD2
15 DETECT IN
14 GUARD1
13 SENSITIVITY SET
12 OSC CAP
11 HORN2
10 HORN1
9 VSS
Terminal List Table
Number
Name
Function
1 TIMER START Input to start reduced sensitivity timer mode
2 I/O Input/output to interconnected detectors
3
LOW-V SET
Optionally used with a resistor to adjust low-battery
threshold
4
TIMER OUT
Optionally used with a resistor to adjust sensitivity
during timer mode
5 LED Output to drive visible LED
6
VDD
Positive supply voltage
7
TIMING RES
Terminal for timing resistor, sets internal bias
(affects timing)
8 FEEDBACK Input for driving piezoelectric horn
9
VSS
Negative supply voltage
10
HORN1
Output for driving piezoelectric horn
11
HORN2
Complementary output for driving piezoelectric horn
12
OSC CAP
Terminal for charging/discharging an external
capacitor to run the oscillator
13
SENSITIVITY SET
Optionally used with a resistor to adjust sensitivity
for a specific chamber
14
GUARD1
Active guard 1 for detector input
15 DETECT IN Input from detector chamber
16
GUARD2
Active guard 2 for detector input
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2



Part Number A5367
Description Ionization Smoke Detector
Maker Allegro
Total Page 10 Pages
PDF Download

A5367 Datasheet PDF





Similar Datasheet

1 A5364 Ionization Smoke Detector
Allegro
2 A5366 Photoelectric Smoke Detector
Allegro
3 A5366CA Photoelectric Smoke Detector
Allegro MicroSystems
4 A5367 Ionization Smoke Detector
Allegro





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy