LUCL9500AGF-DT datasheet(14/32 Pages) AGERE

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Preliminary Data Sheet

September 2001

High-Voltage Ringing SLIC for VoIP Applications

L9500A

Agere Systems Inc.

Electrical Characteristics (continued)

Table 11. 2-Wire Port

Parameter

Min

Typ

Max

Unit

Tip or Ring Drive Current = dc + Longitudinal + Signal Currents

105

——

mAp

Tip or Ring Drive Current = Ringing + Longitudinal

—

mAp

Signal Current

—

mArms

Longitudinal Current Capability per Wire (Longitudinal current is indepen-

dent of dc loop current.)

8.5

—

mArms

Ringing Current (RLOAD = 1386

Ω + 40 µF)

—

mArms

Ringing Current Limit (RLOAD = 100

Ω)—

—

mAp

dc Loop Current—ILIM (VBAT2 applied, RLOOP = 100

Ω):

VPROG = 0

VPROG = Open

—

dc Current Variation

—

±8

dc Feed Resistance (does not include protection resistors)

—

Ω

Open Loop Voltages:

Scan Mode:

PR to Battery Ground

PT to Battery Ground

OHT Mode:

PR to Battery Ground

PT to Battery Ground

Active Mode:

|PT – PR| – |VBAT2|

Ring Mode:

|PT – PR| – |VBAT1|

—

5.75

—

6.25

—

56.5

—

56.5

7.75

—

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