RE46C129

CMOS Ionization Smoke Detector ASIC with Interconnect

R&E International

Product Specification

A Subsidiary of Microchip Technology Inc.

© 2009 Microchip Technology Inc.

DS22172A-page 2

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

otherwise noted)

Limits

Parameter

Symbol

Test

Pin

Test Conditions

Min

Typ

Max

Units

Supply Voltage

6

Operating

6

12

V

6

RBIAS=8.2MΩ, OSCAP=.1uF

4

6.5

uA

Supply Current

6

RBIAS=8.2MΩ, OSCAP=.1uF;Vdd=12V

9

uA

8

FEED Input

6.3

V

Input Voltage High

2

No Local Alarm, IO as an Input

3

V

8

FEED Input

2.7

V

Input Voltage Low

2

No Local Alarm, IO as an Input

1

V

15

VDD=9V, DETECT=VSS, 0-40% RH

-0.75

pA

15

VDD=9V, DETECT=VSS, 85% RH

Note 1

-1.50

pA

Input Leakage Low

8

FEED=-10V

-50

uA

15

VDD=9V, DETECT=VDD, 0-40% RH

0.75

pA

15

VDD=9V, DETECT=VDD, 85% RH

Note 1

1.50

pA

8

FEED=22V

50

uA

Input Leakage High

2

No Alarm, Vio=17V

150

uA

Output Off Leakage High

5

Outputs Off

1

uA

Output High Voltage

10,11

IOH=-16mA, VDD=7.2V

6.3

V

10,11

IOL=16mA, VDD=7.2V

.9

V

Output Low Voltage

5

IOL=10mA, VDD=7.2V

1

V

2

No Alarm, Vio=Vdd-2V

25

100

uA

2

Alarm, Vio=Vdd-2V or Vio=0V

-4

-16

mA

Output Current

2

At Conclusion of Local Alarm or Test,

Vio=1V

5

mA

Low Battery Voltage

6

7.2

7.5

7.8

V

Internal Sensitivity Set Voltage

3

65.5

14,15

Guard Amplifier

-50

50

mV

15,16

Guard Amplifier

-50

50

mV

Offset Voltage

13,15

Smoke Comparator

-50

50

mV

14,15

Guard Amplifier, Note 2

2

V

Common Mode Voltage

13,15

Smoke Comparator, Note 2

.5

V

Output Impedance

14,16

Guard Amplifier Outputs, Note 2

10

kΩ

Note 1: Sample test only

Note 2: Not 100% production tested

Note 3: Production test at room with temperature guardbanded limits.