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參數(shù)資料
| 型號： | A5358CA |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | PHOTOELECTRIC SMOKE DETECTOR WITH INTERCONNECT AND TIMER |
| 中文描述： | 光電感煙探測器與互連和定時器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 98K |
| 代理商： | A5358CA |
PHOTOELECTRIC SMOKE DETECTOR
WITH INTERCONNECT AND TIMER
The A5358CA 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 and British Standard BS 5446,
Part 1.
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 10
μ
s window.
A special three-stage speedup sensing scheme is incorporated to
minimize the time to an audible alarm and also to reduce false trigger-
ing. Also, two consecutive cycles of degraded chamber sensitivity are
required for a warning signal to occur.
The A5358CA 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.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
OSC. &
TIMING
HORN
DRIVER
TEST
DETECT
HUSH
OSC. CAP.
HORN
HORN
– SUPPLY
V
SS
C
I / O
C
STROBE
+ SUPPLY
V
DD
TIMING RES.
FEEDBACK
1
2
LED
IRED
LOGIC
1
2
D
2
Dwg. PC-007
ABSOLUTE MAXIMUM RATINGS
(Voltages are referenced to V
SS
)
Supply Voltage Range,
V
DD
....................................
-0.5 V to +15 V
Input Voltage Range,
V
IN
............................
-0.3 V to V
DD
+ 0.3 V
Input Current, I
IN
...................................
10 mA
Operating Temperature Range,
T
A
.....................................
-25
°
C to +75
°
C
Storage Temperature Range,
T
S
...................................
-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.
Always order by complete part number:
A5358CA
.
FEATURES
I
Interconnect Up to 50 Detectors
I
Piezoelectric Horn Driver
I
All Internal Low-Battery Detection
I
Power-ON Reset
I
Internal Timer & Control for Reduced Sensitivity
I
Built-In Circuits to Reduce False Triggering
I
6 V to 12 V Operating Voltage Range
I
ESD-Protection Circuitry on All Pins
5358
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| A5358CAT | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Photoelectric Smoke Detector with Interconnect and Timer |
| A5358CA-T | 功能描述:IC SMOKE DETECTOR PHOTO 16-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
| A5358CLW-T | 制造商:Allegro MicroSystems LLC 功能描述: |
| A5358CLWTR | 制造商:Allegro MicroSystems LLC 功能描述: |
| A5358CLWTR-T | 功能描述:IC SMOKE DETECTOR PHOTO 16-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:20-TSSOP 包裝:管件 |
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