RE46C145E16F datasheet(4/26 Pages) MICROCHIP

Part #	RE46C145E16F

Description	CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode

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Manufacturer	MICROCHIP [Microchip Technology]

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RE46C145

DS22181C-page 4

 2009-2012 Microchip Technology Inc.

Input Leakage High

IIH1

1,2

—

100

nA

VDD =12V, VIN =VDD,

STROBE active

IIH2

3,10,12

—

100

nA

VDD =12V, VIN =VDD

IHFD

10

—

50

µA

FEED = 22V

Input Pull Down Current

IPD1

16

.25

—

10

µA

VIN =VDD

IPD2

15

.1

.25

.5

µA

VIN =VDD

IPDIO1

720

—

80

µA

VIN =VDD

IPDIO2

7—

—

140

µA

VIN =15V, VDD =12

Output Leakage

Current Low

IOZL1

11,13

—

-1

µA

Output Off, Output = VSS

Output Leakage

Current High

IOZH1

11,13

—

1

µA

Output Off, Output = VDD

Output Voltage Low

VOL1

8,9

—

1

V

Iol = 16 mA, VDD =6.5V

VOL2

13

—

.5

—

V

Iol = 5 mA, VDD =6.5V

VOL3

11

—

.6

V

Iol = 10 mA, VDD =6.5V

Output Voltage High

VOH1

8,9

5.5

—

V

Iol = -16 mA, VDD =6.5V

Output Current

IIOH1

7

-4

—

-16

mA

Alarm, VIO =VDD–2V or

VIO =0V

IIODMP

7

5

—

mA

At Conclusion of Local Alarm

or Test, VVIO =1V

Low Battery

Alarm Voltage

VLB

5

6.9

7.2

7.5

V

Output Voltage

VSTOF

4VDD–.1

—

V

STROBE off, VDD =12V,

IOUT =-1 µA

VSTON

4VDD–

5.25

VDD–5 VDD–4.75

V

STROBE on, VDD =9V

IOUT = 100 µA to 500 µA

VIREDOF

6

—

.1

V

IRED off, VDD =12V,

IOUT =1 µA

VIREDON

6

2.85

3.1

3.35

V

IRED on, VDD =9V

IOUT = 0 to -6 mA, TA =+25°C

Common Mode Voltage

VCM1

1,2,3

.5

—

VDD–2

V

Local smoke,

Push to Test or Chamber Test,

Note 2

Smoke Comparator

Reference

VREF

-VDD–3.7

—

VDD–3.3

V

Internal Reference

Temperature Coefficient

TCST

4—

.01

—

%/ºC VDD = 6V to 12V,

STROBE Output Voltage

TCIRED

6

—

.3

—

%/ºC VDD = 6V to 12V,

IRED Output Voltage

Line Regulation

VSTON

4,5

—

-50

—

dB

Active, VDD =6V to 12V

VIREDON

6,5

—

-30

—

dB

Active, VDD = 6V to 12V

DC ELECTRICAL CHARACTERISTICS (CONTINUED)

DC Electrical Characteristics:

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

Parameter

Symbol

Test

Min

Typ

Max

Units

Conditions

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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