RE46C145(2009) 데이터 시트보기 (PDF) - Microchip Technology

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RE46C145
(Rev.:2009)

CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode

Microchip Technology 

RE46C145

CMOS Photoelectric Smoke Detector ASIC with

Interconnect and Timer Mode

Product Specification

R&E International

A Subsidiary of Microchip Technology Inc.

AC Electrical Characteristics at TA =-25° to 75°, VDD=9V, VSS=0V, Component Values from Figure 2 ;

R9=100KΩ, R12=10MΩ, C5= 1.5nF(unless otherwise noted)

Parameter

Oscillator Period

LED and STROBE On Time

LED Period

STROBE and IRED Pulse

Period

IRED On Time

Horn On Time

Horn Off Time

IO Charge Dump Duration

IO Delay

IO Filter

Remote Alarm Delay

Timer Period

Symbol

TPOSC

TON1

TPLED1

TPLED2

TPLED3

TPLED4

TPER1

TPER1A

TPER1B

TPER2

TPER3

TPER4

TPER5

TON2

THON1

THON2

THOF1

THOF2

THOF3

TIODMP

TIODLY1

TIOFILT

TIODLY2

TTPER

Test

Pin

12

11,4

11

11

11

11

4,6

4,6

4,6

4,6

4,6

4,6

4,6

6

8,9

8,9

8,9

8,9

8,9

7

7

7

7

Test Conditions

No Alarm Condition

Operating

Standby, No Alarm

Local Alarm Condition

Timer Mode, No Local Alarm

Remote Alarm Only

Standby, No Alarm

Standby, After 1 Valid Smoke

Sample

Standby, After 2 Consecutive Valid

Smoke Samples

In Local Alarm – (3 Consecutive

Valid Smoke Samples)

In Remote Alarm

Pushbutton Test

Chamber Test or Low Battery

Test, no Alarms

Operating

Operating, Alarm Condition, Note 1

Low Battery or Failed Chamber

Test , No Alarm

Operating, Alarm Condition, Note 1

Operating, Alarm Condition, Note 1

Low Battery or Failed Chamber

Test, No Alarm

At Conclusion of Local Alarm or

Test

From Start of Local Alarm to IO

Active

IO pulse width guaranteed to be

filtered. IO as Input, No Local

Alarm

No Local Alarm, From IO Active

Horn Active

No Alarm Condition, Note 2

Limits

Min Typ Max

9.4 10.5 11.5

9.4 10.5 11.5

39

43

47

.45

.5

.55

9.6 10.75 11.8

LED IS NOT ON

9.6 10.75 11.8

1.8

2

2.2

Units

mS

mS

S

S

S

S

S

S

.9

1

1.1

S

.9

1

1.1

S

7.2

8

8.9

S

300 336 370 mS

39

47

S

94

104 115

uS

450 500 550 mS

9.5 10.5 11.5 mS

450 500 550 mS

1.35 1.5 1.65

S

39

43

47

S

.9

1.46

S

0

S

600 mS

1.05

8

10

2.0

S

12

Min

Note 1 – See timing diagram for Horn Temporal Pattern

Note 2 – During the timer mode the LED Period is 10.5 seconds. The LED period will return to a 43 seconds at the conclusion of the timer

mode.

Note 3 - TPOSC and TON2 are 100% production tested. All other timing is guaranteed by functional testing.

Typical values are for design information and are not guaranteed.

© 2009 Microchip Technology Inc.

DS22181B-page 4

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