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L9216G

Short-Loop Ringing SLIC with Ground Start

Agere -> LSI Corporation 

Preliminary Data Sheet

September 2001

L9216A/G

Short-Loop 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

Longitudinal Current Capability per Wire (Longitudinal current is indepen-

dent of dc loop current.)

Ringing Current (RLOAD = 1386 Ω + 40 µF)

Ringing Current Limit (RLOAD = 100 Ω)

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

VPROG = 0

VPROG = Open

dc Current Variation

dc Feed Resistance (does not include protection resistors)

Open Loop Voltages:

Scan Mode:

|VBAT1| > 51 V |VTIP| – |VRING|

PR to Battery Ground

PT to Battery Ground

OHT Mode:

|VBAT1| > 51 V |VTIP| – |VRING|

PR to Battery Ground

PT to Battery Ground

Active Mode:

|PT – PR| – |VBAT2|

Ring Mode:

|PT – PR| – |VBAT1|

Min Typ Max Unit

105 —

—

mAp

65

—

—

mAp

10

—

— mArms

8.5 15

— mArms

29

—

— mArms

—

— 50

mAp

— 25 —

mA

— 40 —

mA

—

—

±8

%

—

50

—

Ω

44 51 —

V

—

— 56.5

V

—

— 56.5

V

41 49 —

V

—

— 56.5

V

—

— 56.5

V

5.75 6.25 6.75

V

—

4

—

V

Agere Systems Inc.

15

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