Datasheet

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. DS22179B-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
V
DD
5
Operating 6 12 V
I
DD1
5
Configured as in Figure 2,
COSC=VSS, LED off
4 6 uA
I
DD2
5
Configured as in Figure 2, VDD=12V,
COSC=VSS
5.5 8 uA
I
DD3
5
Configured as in Figure 2, STROBE
on, IRED off, VDD=12V
2 mA
Supply Current
I
DD4
5
Configured as in Figure 2, STROBE
on, IRED on, VDD=12V, Note 1
3 mA
V
IH1
10
FEED 6.2 4.5 V
V
IH2
7
No Local Alarm, IO as an Input 3.2 V
V
IH3
15
VSEN 1.6 V
Input Voltage High
V
IH4
16
TEST 8.5 V
V
IL1
10
FEED 4.5 2.7 V
V
IL2
7
No Local Alarm, IO as an Input 1.5 V
V
IL3
15
VSEN .5 V
Input Voltage Low
V
IL4
16
TEST 7 V
I
IL1
1,2,3
VDD=12V, COSC=12V, STROBE
active
-100 nA
I
IL2
12,10
VDD=12V, Vin=VSS -100 nA
I
IL3
15,16
VDD=12V, Vin=VSS -1 uA
Input Leakage Low
I
LFD
10
FEED=-10V -50 uA
I
IH1
1,2
VDD=12V, Vin=VDD, STROBE active 100 nA
I
IH2
3,12,10
VDD=12V, Vin=VDD 100 nA
Input Leakage High
I
HFD
10
FEED=22V 50 uA
I
PD1
16
Vin=VDD .25 10 uA
I
PD2
15
Vin=VDD .1 .25 .5 uA
I
PDIO1
7
Vin=VDD 20 80 uA
Input Pull Down Current
I
PDIO2
7
Vin=17V, VDD=12 140 uA
Output Leakage Current
Low
I
OZL1
11,13
Output Off, Output=VSS -1 uA
Output Leakage Current
High
I
OZH1
11,13
Output Off, Output=VDD 1 uA
Note 1: Does not include Q3 emitter current.