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A5338

Features: ·Interconnect up to 125 detectors·Piezoelectric horn driver·Guard outputs for detector input·Pulse testing for low battery·Power-on reset·Internal reverse battery protection·Internal timer and control for reduced sensitivity·Built-in hysteresis reduces false triggeringPinoutSpecification...

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SeekIC No. : 004260386 Detail

A5338: Features: ·Interconnect up to 125 detectors·Piezoelectric horn driver·Guard outputs for detector input·Pulse testing for low battery·Power-on reset·Internal reverse battery protection·Internal timer...

A5338 Data Sheet

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Part Number:
A5338
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/30

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Product Details

Description



Features:

·Interconnect up to 125 detectors
·Piezoelectric horn driver
·Guard outputs for detector input
·Pulse testing for low battery
·Power-on reset
·Internal reverse battery protection
·Internal timer and control for reduced sensitivity
·Built-in hysteresis reduces false triggering


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Conditions
Min.
Typ.
Max.
Units
Supply Voltage Range2
Reverse Battery
Logic Input Voltage Range2
Logic Input Current
Operating Temperature Range (C)
Junction Temperature
Storage Temperature Range
VDD

VI
II
TA
TJ
TS
10.5 V
0.5

0.3

0

55






15
20
VDD+ 0.3
10
50
150
125
V
s
V
mA
°C
°C
°C
1CMOS devices have input static protection, but are susceptible to damage when exposed to extremely high static electrical charges.
2Voltages are references to VSS


Description

The A5338CA is a low-current, CMOS circuit providing all of the required features for an ionizationtype 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 A5338CA 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.




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