RE46C144SW16TF datasheet(3/26 Pages) MICROCHIP

Part #	RE46C144SW16TF

Description	CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode

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Manufacturer	MICROCHIP [Microchip Technology]

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 2009-2012 Microchip Technology Inc.

DS22180C-page 3

RE46C144

1.0

ELECTRICAL

CHARACTERISTICS

1.1

Absolute Maximum Ratings†

VDD....................................................................................15V

Input Voltage Range Except FEED, IO .......... VIN = -.3V to VDD +.3V

FEED Input Voltage Range ..................... VINFD =-10 to +22V

IO Input Voltage Range................................. VIO1= -.3 to 15V

Input Current except FEED................................... IIN = 10 mA

Operating Temperature ................................TA = -25 to +75°C

Storage Temperature ............................TSTG = -55 to +125°C

Maximum Junction Temperature......................... TJ = +150°C

† Notice:

Stresses above those listed under “Maximum

ratings” may cause permanent damage to the device.

This is a stress rating only and functional operation of

the device at these or any other conditions above those

indicated in the operation listings of this specification is

not implied. Exposure to maximum rating conditions for

extended periods may affect device reliability.

DC ELECTRICAL CHARACTERISTICS

DC Electrical Characteristics:

Unless otherwise indicated, all parameters apply at TA = -25°C to +75°C, VDD =9V.

Parameter

Symbol

Test Pin

Min.

Typ.

Max.

Units

Conditions

Supply Voltage

VDD

5

6

—

12

V

Operating

Supply Current

IDD1

5

—

4

6

µA

Configured as in Typical

Application, COSC=VSS

IDD2

5

—

5.5

8

µA

Configured as in Typical

Application, VDD =12V,

COSC = VSS

IDD3

5

—

2

mA

Configured as in Typical

Application, STROBE on,

IRED off, VDD =12V

IDD4

5

—

3

mA

Configured as in Typical

Application, STROBE on,

IRED on, VDD = 12V,

Note 1

Input Voltage High

VIH1

10

6.2

—

V

FEED

VIH2

7

3.2

—

V

No Local Alarm, IO as

input

VIH3

15

1.6

—

V

VSEN

VIH4

16

8.5

—

V

TEST

Input Voltage Low

VIL1

10

—

2.7

V

FEED

VIL2

7

—

1.5

V

No Local Alarm, IO as

Input

VIL3

15

—

.5

V

VSEN

VIL4

16

——7

V

TEST

Input Leakage Low

IIL1

1, 2, 3

—

-100

nA

VDD =12V, COSC =12V,

STROBE active

IIL2

10, 12

—

-100

nA

VDD =12V, VIN =VSS

IIL3

15, 16

—

-1

µA

VDD =12V, VIN =VSS

IIFD

10

—

-50

µA

FEED = -10V

Note 1:

Does not include Q3 emitter current.

2:

Not production tested.

3:

Typical values are for design information and are not ensured.

4:

Limits over the specified temperature range are not production tested and are based on characterization

data.

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