A5366 查看數據表（PDF） - Sensitron

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A5366

Photoelectric Smoke Detector with Interconnect and Timer

Sensitron 

A5366

Photoelectric Smoke Detector

with Interconnect and Timer

DC ELECTRICAL CHARACTERISTICS (continued) at TA = –25°C to 75°C1, VSS = 0 V, in typical application (unless otherwise noted)

Characteristic

Symbol

Test Conditions

Test Pin VDD Min. Typ.2 Max. Units

Line Regulation

ΔVIRED(ΔVDD) Active, VDD = 6 to 12 V

6

–

–35

–

dB

IRED Temperature Coefficient

αIRED

VDD = 6 to 12 V

6

–

–

0.40

–

%/°C

High-Level Output Current

IOH

VDD = Alarm, I/O active,VO = VDD – 2 V

7

9

–4.0

–

–

mA

OFF Leakage Current High

IOZ

VO = VDD

11, 13

12

–

–

1.0

μA

OFF Leakage Current Low

IOZ

VO = VSS

11, 13

12

–

–

–1.0 μA

Low-Battery Alarm Threshold

VDD(th)

5

–

6.9 7.2 7.5

V

Common Mode Voltage

VIC

Any alarm condition

1, 2, 3

-

VDD

–4

–

VDD

–2

V

Smoke Comparator

Reference Voltage

VREF

Any alarm condition

Internal

-

VDD

– 3.7

–

VDD

– 3.3

V

1Limits over the operating temperature range are based on characterization data. Characteristics are production tested at 25°C only.

2Typical values are at 25°C and are given for circuit design information only.

AC ELECTRICAL CHARACTERISTICS at TA = –25°C to 75°C1. VSS = 0 V, in typical application (unless otherwise noted)

Characteristic

Symbol

Test Conditions

Test Pin VDD Min. Typ.2

Oscillator Period

tosc

12

9

9.4 10.5

tled1

No local or remote smoke

11

9

39

–

tled3

Local smoke

11

9

0.45 0.50

LED Pulse Period

tled4

Remote smoke only

11

9

–

No LED

Pulses

Max.

11.5

48

0.55

–

LED Pulse Width

STROBE Pulse Period

tled6

tled7

tw(led)

tst1

tst2

tst3

tst4

tst5

Pushbutton test, induced alarm

Timer mode, no alarm

No local or remote smoke

After 1 of 3 valid samples

After 2 of 3 valid samples and during local

alarm

Remote smoke only

Chamber test or low battery test, no local

alarm

11

9

0.45 0.50 0.55

11

9

9.67 10.75 11.83

11

9

9.5

–

11.5

4

9

9.6

–

11.9

4

9

1.8

2.0

2.2

4

9

0.8

1.0

1.1

4

9

7.2

8.0

8.9

4

9

38.9

–

47.1

STROBE Pulse Width

tst6

Pushbutton test, induced alarm

tw(st)

4

9

225 252 278

4

9

9.5

–

11.5

Units

ms

s

s

s

s

s

ms

s

s

s

s

s

ms

ms

Continued on the next page…

Allegro MicroSystems, Inc.

5

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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