L9216B/H
High-Voltage Ringing SLIC with Ground Start
Preliminary Data Sheet
September 2001
Electrical Characteristics
(continued)
Table 11. 2-Wire Port
Parameter
Tip or Ring Drive Current = dc + Longitudinal + Signal Currents
Tip or Ring Drive Current = Ringing + Longitudinal
Signal Current
Longitudinal Current Capability per Wire (Longitudinal current is indepen-
dent of dc loop current.)
Ringing Current (R
LOAD
= 1386
Ω
+ 40
µF)
Ringing Current Limit (R
LOAD
= 100
Ω)
dc Loop Current—I
LIM
(V
BAT2
applied, R
LOOP
= 100
Ω):
V
PROG
= 0
V
PROG
= Open
dc Current Variation
dc Feed Resistance (does not include protection resistors)
Open Loop Voltages:
Scan Mode:
|V
BAT1
| > 51 V |V
TIP
| – |V
RING
|
PR to Battery Ground
PT to Battery Ground
OHT Mode:
|V
BAT1
| > 51 V |V
TIP
| – |V
RING
|
PR to Battery Ground
PT to Battery Ground
Active Mode :
|PT – PR| – |V
BAT2
|
Ring Mode:
|PT – PR| – |V
BAT1
|
Min
105
65
10
8.5
29
—
—
—
—
—
Typ
—
—
—
15
—
—
25
40
—
50
Max
—
—
—
—
—
50
—
—
±8
—
Unit
mAp
mAp
mArms
mArms
mArms
mAp
mA
mA
%
Ω
44
—
—
41
—
—
5.75
—
51
—
—
49
—
—
6.25
4
—
56.5
56.5
—
56.5
56.5
6.75
—
V
V
V
V
V
V
V
V
14
Agere Systems Inc.
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