RE46C144 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

RE46C144

CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Mode

Microchip Technology 

RE46C144

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 Pin Min.

Typ.

Max. Units

Conditions

Input Leakage High

IIH1

1, 2

—

—

100

nA VDD = 12V, VIN = VDD,

STROBE active

Input Pull Down

Current

Output Leakage

Current Low

IIH2

3, 10, 12

—

IHFD

10

—

IPD1

16

.25

IPD2

15

.1

IPDIO1

7

20

IPDIO2

7

—

IOZL1

11, 13

—

—

100

nA VDD = 12V, VIN = VDD

—

50

µA FEED = 22V

—

10

µA VIN = VDD

.25

.5

µA VIN = VDD

—

80

µA VIN = VDD

—

140

µA VIN = 15V, VDD = 12V

—

-1

µA Output Off, Output = VSS

Output Leakage

Current High

IOZH1

11, 13

—

Output Voltage Low

VOL1

8, 9

—

VOL2

13

—

VOL3

11

—

Output Voltage High

VOH1

8, 9

5.5

Output Current

IIOH1

7

-4

IIODMP

7

5

Low Battery

Alarm Voltage

VLB

5

6.9

—

1

µA Output Off, Output = VDD

—

1

V Iol = 16 mA, VDD = 6.5V

.5

—

V Iol = 5 mA, VDD = 6.5V

—

.6

V Iol = 10 mA, VDD = 6.5V

—

V Iol = -16 mA, VDD = 6.5V

—

-16

mA Alarm,

VIO = VDD - 2V or VIO = 0V

—

—

mA At Conclusion of Local

Alarm or Test, VIO = 1V

7.2

7.5

V

Output Voltage

Common Mode

Voltage

Smoke Compare

Reference

VSTOF

VSTON

VIREDOF

VIREDON

VCM1

VREF

4

VDD – .1

—

—

V STROBE off, VDD=12V,

IOUT = -1 µA

4

VDD – 5.25 VDD – 5 VDD - 4.75 V STROBE on, VDD = 9V,

IOUT = 100 µA to 500 µA

6

—

—

.1

V IRED off, VDD = 12V,

IOUT = 1 µA

6

2.85

3.1

3.35

V IRED on, VDD = 9V

IOUT = 0 to -6 mA,

TA = +25°C

1, 2, 3

.5

—

VDD – 2

V Local smoke,

Push-to-Test or Chamber

Test, Note 2

—

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

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.

DS22180C-page 4

 2009-2012 Microchip Technology Inc.

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