Datasheet > RE46C121

RE46C121

更新时间： 2022-12-17 01:24:52

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
7页	190K
描述
CMOS Ionization Smoke Detector ASIC with Interconnect

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RE46C121 数据手册

RE46C120

CMOS Ionization Smoke Detector ASIC

R&E International

Product Specification

A Subsidiary of Microchip Technology Inc.

AC Electrical Characteristics at TA = 25°C, VDD=9V, OSCAP=.1uF, RBIAS=8.2MΩ, VSS=0V (unless

otherwise noted)

Limits

Typ Max Units

Test

Min

1.34

37.5

9.1

Parameter

Oscillator Period

Symbol

T_PER1

T_PER2

T_PW

Test Conditions

No Alarm Condition

1.67

41.5

10.5

Alarm Condition

Operating

45.8

12.9

Oscillator Pulse Width

LED On Time

Operating

T_LON

LED Off Time

Standby, No Alarm

Alarm Condition

T_LOF1

T_LOF2

1.1

Horn On Time

Horn Off Time

Operating, Alarm Condition, Note 4,

TONE=VDD or Float

T_HON1

10,11

450

500

550

Low Battery, No Alarm

T_HON2

T_HON3

T_HOF1

10,11

9.1

10.5

166

12.9

183

Operating, Alarm Condition, TONE=Low

150

Operating, Alarm Condition, Note 4,

TONE=VDD or Float

Operating, Alarm Condition, Note 4,

TONE=VDD or Float

10,11

450

500

1.5

550

T_HOF2

1.35

1.65

Operating, Alarm Condition, TONE=Low

Low Battery, No Alarm

T_HOF3

T_HOF4

10,11

Note 4: See timing diagram for Horn Temporal Pattern

Functional Block Diagram

Figure 1

DS22157A-page 3

1 234 5 6 7

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