Test

Limits

Characteristic

Pin

Test Conditions

Min.

Typ.

Max.

Units

Supply Voltage Range

6

Operating

6.0

9.0

12

V

Detector Input Current

15

0 to 40% RH, V

—

—

±1.0

pA

Input Offset Voltage

14-15

Active Guard

—

—

±100

mV

16-15

Active Guard

—

—

±100

mV

15-13

Detect Comparator

—

—

±50

mV

Hysteresis

13

No Alarm to Alarm

90

130

170

mV

Common Mode Range

14-15

Guard Amplifier

2.0

—

V

V

13-15

Smoke Comparator

0.5

—

V

V

Active Guard Impedance

14

to V

SS

—10

—

k

Ω

16

to V

SS

—

500

—

k

Ω

Oscillator Period

12

No Alarm

1.34

1.67

2.00

s

Alarm

32

40

48

ms

Oscillator Pulse Width

4

8.0

10

12

ms

Timer Period

4

After Pin 1 High-to-Low, No Smoke

8.0

10

12

min

Low Voltage Threshold

6

T

7.2

—

7.8

V

Sensitivity Adj. Voltage

13

V

48.5

50

51.5

%

Horn Output Voltage

10-11

I

—

0.1

0.5

V

I

—

—

0.9

V

I

8.5

8.8

—

V

I

6.3

—

—

V

Horn Output ON Time

10-11

Alarm (see figure, time “A”)

450

500

550

ms

Low Battery

8.0

10

12

ms

Horn Output OFF Time

10-11

Alarm (see figure, time “B”)

450

500

550

ms

Alarm (see figure, time “C”)

1350

1500

1650

ms

Low Battery

32

40

48

s

Timer Start Logic Levels

1

V

IH

4.5

—

—

V

V

IL

—

—

2.5

V

ELECTRICAL CHARACTERISTICS at T

A

= +25

DD

= 9.0 V, V

SS

= 0 V, C

12

= 0.1

R

7

= 8.2 M

NOTE 1:

Negative current is defined as coming out of (sourcing) the specified device pin.

NOTE 2:

Alarm (Smoke) Condition is defined as V

5368

SMOKE DETECTOR

WITH

INTERCONNECT

AND

TIMER