?2011 Microchip Technology Inc.
DS22275A-page 5
RE46C180
Input Leakage High
IH
DET1
15


0.75
pA
V
DD
= 9V, DETECT = V
DD
,
040% RH, T
A
 = +25癈
IH
DET2
15


1.5
pA
V
DD
= 9V, DETECT = V
DD
,
85% RH, T
A
 = +25癈 (Note 2)
IH
FD1
 
8


50
FEED = 22V
IH
FD2
 
8


100
nA
FEED = V
DD
 
I
IOL2
 
2


150
No Alarm, V
IO
= 15V
Output Off Leakage High
I
IOHZ
3, 5


1
Outputs Off,
V
RLED
 = 9V, V
GLED
 = 9V
Input Pull Down Current
I
PD1
1
20
50
80
TEST = 9V
I
PD2
12
0.4
0.8
1.3
mA
T2 = 9V
Output High Voltage
V
OH1
 
10,11
6.3


V
I
OH
= -16 mA, V
DD
= 7.2V
Output Low Voltage
V
OL1
10,11


0.9
V
I
OL
 = 16 mA, V
DD
 = 7.2V
V
OL3
3, 5


1
V
I
OL
 = 10 mA, V
DD
 = 7.2V
Output Current
I
IOL1
 
2
25

60
No Alarm, V
IO
= V
DD
 -2V
I
IOH1
 
2
-4

-16
mA
Alarm, V
IO
= 4V or V
IO
= 0V
I
IODMP
2
5


mA
At conclusion of Local Alarm
or PTT, V
IO
= 1V
Low Battery Voltage
V
LB
6
6.75
6.9
7.05
V
LBTR[2:1] = 1 0
7.05
7.2
7.35
V
LBTR[2:1] = 1 1
7.35
7.5
7.65
V
LBTR[2:1] = 0 0
7.65
7.8
7.95
V
LBTR[2:1] = 0 1
Offset Voltage
V
GOS1
 
14,15
-50

50
mV
Guard amplifier
V
GOS2
 
15,16
-50

50
mV
Guard amplifier
V
GOS3
 
15
-50

50
mV
Smoke comparator
Common Mode Voltage
V
CM1
 
14,15
2

V
DD
.5
V
Guard amplifier (Note 3)
V
CM2
 
15
0.5

V
DD
2
V
Smoke comparator (Note 3)
Output Impedance
Z
OUT
 
14,16

10

kW
Guard amplifier outputs (Note 3)
Chamber Voltage in
PTT/Chamber Test
V
CHAMBER
4
4.49
4.5
4.51
V
User programmable
(2.1V to 6.75V) (Note 4)
Hysteresis
V
HYS
 
13
140
150
160
mV
No Alarm to Alarm condition,
user programmable
(50 to 225 mV) (Note 4)
DC ELECTRICAL CHARACTERISTICS (CONTINUED)
DC Electrical Characteristics: Unless otherwise indicated, all parameters apply at T
A
 = -10癈 to +60癈,
V
DD
= 9V, V
SS
= 0V (Note 1)
Parameter
Symbol
Test
Pin
Min
Typ
Max
Units
Conditions
Note  1:   Production tested at room temperature with temperature guard banded limits.
2:   Sample test only.
3:   Not 100% production tested.
4:   Same limit range at each programmable step, see Table 4-1.
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