RE46C140

CMOS Photoelectric Smoke Detector ASIC with Interconnect

R&E International

and Timer Mode

A Subsidiary of Microchip Technology Inc.

Product Specification

2009 © Microchip Technology Inc.

DS22179A-page 2

DC Electrical Characteristics at TA = -25° to 75°C, VDD=9V, Typical Application (unless otherwise noted)

Limits

Parameter

Symbol

Test

Pin

Test Conditions

Min

Typ

Max

Units

Supply Voltage

5

Operating

6

12

V

5

Configured as in Figure 2,

COSC=VSS, LED off

4

6

uA

5

Configured as in Figure 2, VDD=12V,

COSC=VSS

5.5

8

uA

5

Configured as in Figure 2, STROBE

on, IRED off, VDD=12V

2

mA

Supply Current

5

Configured as in Figure 2, STROBE

on, IRED on, VDD=12V, Note 1

3

mA

10

FEED

6.2

4.5

V

7

No Local Alarm, IO as an Input

3.2

V

15

VSEN

1.6

V

Input Voltage High

16

TEST

8.5

V

10

FEED

4.5

2.7

V

7

No Local Alarm, IO as an Input

1.5

V

15

VSEN

.5

V

Input Voltage Low

16

TEST

7

V

1,2,3

VDD=12V, COSC=12V, STROBE

active

-100

nA

12,10

VDD=12V, Vin=VSS

-100

nA

15,16

VDD=12V, Vin=VSS

-1

uA

Input Leakage Low

10

FEED=-10V

-50

uA

1,2

VDD=12V, Vin=VDD, STROBE active

100

nA

3,12,10

VDD=12V, Vin=VDD

100

nA

Input Leakage High

10

FEED=22V

50

uA

16

Vin=VDD

.25

10

uA

15

Vin=VDD

.1

.25

.5

uA

7

Vin=VDD

20

80

uA

Input Pull Down Current

7

Vin=17V, VDD=12

140

uA

Output Leakage Current

Low

11,13

Output Off, Output=VSS

-1

uA

Output Leakage Current

High

11,13

Output Off, Output=VDD

1

uA

Note 1: Does not include Q3 emitter current.