L9216B/H
Preliminary Data Sheet
September 2001
High-Voltage Ringing SLIC with Ground Start
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
Min
105
65
Typ
—
Max
—
Unit
mAp
—
—
mAp
10
—
—
mArms
mArms
Longitudinal Current Capability per Wire (Longitudinal current is indepen-
dent of dc loop current.)
8.5
15
—
Ringing Current (RLOAD = 1386 Ω + 40 µF)
Ringing Current Limit (RLOAD = 100 Ω)
29
—
—
—
—
mArms
mAp
50
dc Loop Current—ILIM (VBAT2 applied, RLOOP = 100 Ω):
VPROG = 0
VPROG = Open
—
—
25
40
—
—
mA
mA
dc Current Variation
—
—
—
±8
—
%
dc Feed Resistance (does not include protection resistors)
50
Ω
Open Loop Voltages:
Scan Mode:
|VBAT1| > 51 V |VTIP| – |VRING|
PR to Battery Ground
PT to Battery Ground
OHT Mode:
44
—
—
51
—
—
—
56.5
56.5
V
V
V
|VBAT1| > 51 V |VTIP| – |VRING|
PR to Battery Ground
PT to Battery Ground
Active Mode :
41
—
—
49
—
—
—
56.5
56.5
V
V
V
|PT – PR| – |VBAT2|
Ring Mode:
|PT – PR| – |VBAT1|
5.75
—
6.25
4
6.75
—
V
V
14
Agere Systems Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
