PBL 3762A/2, /4
Ref
fig
Parameter
Conditions
Min
Typ
Max
Unit
Loop current detector
Loop current detector threshold, I
LTh
R
D
= 33 kΩ
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
|∆I
LOn
-
∆I
LOff
|
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
Source resistance, R
S
= 0
Ω
I
B
= (I
DT
+ I
DR
)/2
9.8
9.0
9
8
4
3
375/R
D
375/R
D
12
12
7
7
12.8
13.7
16
17
11
12
mA
mA
mA
mA
mA
mA
Ground key detector
I
LTIPX
and I
LRINGX
current difference,
∆I
LOn
,
to trigger the ground key detector
I
LTIPX
and I
LRINGX
current difference,
∆I
LOff
,
to return the triggered ground key
detector to idle state
Hysteresis,
∂I
LGK
3
0
-20
-500
1
3
V
Bat
+1
5
5
0
-100
8
9
20
mA
mA
mV
nA
MΩ
MΩ
V
V
µA
V
V
µA
µA
µA
V
V
kΩ
µs
µs
mW
mW
mW
W
Ring trip detector
Offset voltage,
∆V
DTR
Input bias current, I
B
Input resistance
unbalanced
balanced
Input common mode range, V
DT
, V
DR
Ring relay driver
Saturation voltage, V
OL
Off state leakage current, I
Lk
Digital inputs
(C1, C2, E0, E1)
Input low voltage, V
IL
Input high voltage, V
IH
Input low current, I
IL
C1, C2
E0, E1
Input high current, I
IH
Detector output
(DET)
Output low voltage, V
OL
Output high voltage,V
OH
Internal pull-up resistor
Delay time E0 to DET
transition high to low, t
DHL
transition low to high, t
DHL
Power dissipation (V
Bat
= -48V)
P
1
P
2
P
3
P
4
Power supply currents
V
CC
current, I
CC
V
EE
current, I
EE
V
Bat
current, I
Bat
V
CC
current, I
CC
V
EE
current, I
EE
V
Bat
current, I
Bat
-2
0.2
0.6
10
0.8
V
CC
I
OL
= 25 mA
V
OH
= 12 V
0
2.0
V
IL
= 0.4 V
-400
-100
V
IH
= 2.4 V
I
OL
= 2 mA
I
OH
= 100
µA
40
0.45
2.7
8
15
25
1
2
7
7
Open circuit state, C1,C2 = 0, 0
Stand-by state,
C1, C2 = 1, 1; on-hook
Active state, C1, C2 = 0, 1
On-hook, R
L
=
∞ Ω
Off-hook, R
L
= 600
Ω
40
60
200
1.1
70
85
300
1.3
Open circuit state
C1, C2 = 0, 0
On-hook
Stand-by state
C1, C2 = 1, 1
On-hook
1.7
1.0
0.6
2.1
1.0
0.9
2.9
2.0
1.3
3.5
2.0
1.6
mA
mA
mA
mA
mA
mA
6
ERICSSON [ ERICSSON ]
