CPC7581
1.7 Additional Electrical Characteristics
Parameter
Conditions
Symbol
Minimum
Typical
Maximum
Unit
Digital input characteristics
Input low voltage
V
-
-
-
2.2
2.3
1.5
-
IL
V
V
Input high voltage
3.5
IH
Input leakage current
(high)
V
= 5.5 V, V = -75 V, V = 5 V
BAT IH
I
-
-
0.1
0.1
1
1
DD
IH
μA
Input leakage current
(low)
V
= 5.5 V, V = -75 V, V = 0 V
BAT IL
I
DD
IL
Voltage Requirements
V
V
-
-
4.5
-19
5.0
-48
5.5
-72
V
V
DD
DD
1
V
V
BAT
BAT
1
V
is used only for internal protection circuitry. If V
goes more positive than -10 V, the device will enter the all-off state and will remain in the all-off state until
BAT
BAT
the battery goes more negative than -15 V
Power requirements
Power consumption in
talk and all-off states
-
-
5.5
6.5
1.1
10
10
V
= 5 V, V = -48 V, measure I
BAT DD
DD
P
mW
and I
Power consumption in
ringing state
BAT
V
current in talk and
DD
2.0
all-off states
current in ringing
I
mA
DD
V
V = 5 V, V = -48 V
DD BAT
DD
-
-
1.3
0.1
2.0
10
state
V
current in any state
I
BAT
μA
BAT
Temperature Shutdown Requirements (temperature shutdown flag is active low)
Shutdown activation
temperature
110
10
125
-
150
25
-
-
°C
Shutdown circuit
hysteresis
Temperature shutdown requirements are not production tested, but rather guaranteed by design.
8
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