L9313 datasheet(21/40 Pages) AGERE

21 / 40 page

Data Sheet

September 2001

Full-Feature SLIC and Ringing Relay for TR-57 Applications

L9313 Line Interface and Line Access Circuit

Agere Systems Inc.

Electrical Characteristics (continued)

Switch Characteristics (continued)

Table 13. Ringing Access Switch (SW4)

1. Choice of secondary protector and feed resistor should ensure these ratings are not exceeded. A minimum 400

Ω feed resistor is recom-

mended.

2. This parameter is not tested in production. It is guaranteed by design and device characterization.

3. Applied voltage is 100 Vp-p square wave at 100 Hz to measure dV/dT sensitivity.

On-State Switch I-V Characteristics

Parameter

Min

Typ

Max

Unit

Off State:

Maximum Differential Voltage

dc Leakage Current (Vsw = ±475 V) (pole to pole)

Isolation

—

±475

±20

±320

µA

On State (see On-State Switch I-V Characteristics section):

Resistance

Voltage

Steady-state Current1

Surge Current (10 x 700

µs pulse)2

Release Current

—

500

150

—

Ω

µA

dV/dT Sensitivity2, 3

—

200

—V/µs

5-5990.c(F)

A. Line Break Switch SW1, SW2

12-3291.a(F)

B. Ring Return SW3

12-3292.a(F)

C. Ring Access SW4

Figure 4. On-State Switch I-V Characteristics

ILIM1

ISW

+1.5

2/3 RON

RON

–1.5

–ILIM1

+VMAX

VSW

ILIM2

–ILIM2

+V2

+V1

–VMAX –V2 –V1

–VMAX

–ILIMIT

+ILIMIT

+VMAX

VSW

+1.5 V

–1.5 V

RON

2/3 RON

CURRENT

LIMITING

ISW

2/3 RON

CURRENT

LIMITING

–VOS

+VOS

VSW

RON

ISW

RON

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