RE46C180S16F datasheet(7/58 Pages) MICROCHIP

Part #	RE46C180S16F

Description	CMOS Programmable Ionization Smoke Detector ASIC with Interconnect, Timer Mode and Alarm Memory

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Manufacturer	MICROCHIP [Microchip Technology]

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 2011 Microchip Technology Inc.

DS22275A-page 7

RE46C180

Low Battery

Low Battery Check

Period

TPLB1

—

76

80

84

s

Standby, No Alarm,

No Low Battery

TPLB2

—

304

320

336

s

Standby, No Alarm, Low

Battery

Horn Operation

Horn Delay

THDLY1

10, 11

475

500

525

ms

From Local Alarm to Horn

Active, temporal horn pattern

THDLY2

10, 11

380

400

420

ms

From Local Alarm to Horn

Active, continuous horn

pattern

Horn Period

THPER1

10, 11

38

40

42

s

Low Battery, No Alarm

THPER2

10, 11

38

40

42

s

Chamber Failure, No Alarm

THPER3

10, 11

237

250

263

ms

Alarm Memory Indication

upon PTT, AMHCEn=1

THPER4

10, 11

5.5

5.8

6.1

s

CO Alarm horn period

(Note 2)

Horn On Time

THON1

10, 11

9.5

10

10.5

ms

1.

Low Battery, No Alarm

2.

Chamber Failure

3.

Alarm Memory

Indication upon PTT,

AMHCEn = 1

THON2

10, 11

475

500

525

ms

Smoke Alarm, temporal horn

pattern (Note 3)

THON3

10, 11

332

350

368

ms

Smoke Alarm, continuous

horn pattern (Note 3)

THON4

10, 11

95

100

105

ms

CO Alarm, COEn = 1

Horn Off Time

THOF1

10, 11

475

500

525

ms

Smoke Alarm, temporal horn

pattern (Note 3)

THOF2

10, 11

1.43

1.5

1.58

s

Smoke Alarm, temporal horn

pattern (Note 3)

THOF3

10, 11

143

150

158

ms

Smoke Alarm, continuous

horn pattern (Note 3)

THOF4

10, 11

37

39

41

s

Chamber Fail horn off time

between pulse trains (3x)

THOF5

10, 11

465

490

515

ms

Chamber Fail horn off time

between pulses

THOF6

10, 11

95

100

105

ms

CO Alarm horn off time

between pulses,

COEn = 1 (Note 2)

THOF7

10, 11

4.8

5.1

5.4

s

CO alarm horn off time

between pulse trains,

COEn = 1 (Note 2)

AC ELECTRICAL CHARACTERISTICS

(CONTINUED)

AC Electrical Characteristics:

Unless otherwise indicated, all parameters apply at TA = -10°C to +60°C,

VDD = 9V, VSS = 0V.

Parameter

Symbol

Test

Min

Typ

Max

Units

Conditions

Note 1:

TPOSC is 100% production tested. All other timing is verified by functional testing.

2:

See timing diagram for CO alarm horn pattern.

3:

See timing diagram for smoke alarm temporal and non-temporal horn pattern.

4:

See timing diagram for horn synchronization and Auto Alarm Locate (AAL).

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