L7591 [AGERE]

Subscriber Line Interface Circuit Protector; 用户线接口电路保护器


型号：	L7591
厂家：	AGERE SYSTEMS
描述：	Subscriber Line Interface Circuit Protector 用户线接口电路保护器电路保护
文件：	总8页 (文件大小：205K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Data Sheet

October 1997

L7591 Subscriber Line Interface Circuit Protector

Features

Description

■ Shunts lightning pulses to ground

— Positive or negative 30 A, 10 x 1000 µs

— Positive or negative 40 A, 5 x 320 µs

— Positive or negative 80 A, 2 x 10 µs

The L7591 Subscriber Line Interface Circuit (SLIC)

Protector is designed to protect line-feed circuitry

from fault-induced lightning and power-cross surge

pulses. If a fault current forces TIP and/or RING to a

more negative voltage than V^S, current is conducted

through the trip circuit. When the speciﬁed trip cur-

rent level is reached, transistors PNPN1 and/or

PNPN2 will turn on and "crowbar" the majority of the

current to ground. If similar pulses force TIP and/or

RING to a more positive state than ground, diodes

D1 and/or D2 will conduct the pulse to ground. The

L7591 SLIC Protector is available in an 8-pin, plastic

DIP (L7591AB) and in an 8-pin, plastic SONB pack-

age (L7591AS).

■ Power-cross protection

— 3.5 APEAK, 50 Hz to 60 Hz, 1 s

— 5.0 APEAK, 50 Hz to 60 Hz, 10 ms

■ Gate trigger current, 15 mA max

■ Up to –80 V capability

■ Holding current, 150 mA min

Pin Information

Table 1. Pin Description

TIP

(Applies to DIP and SONB packages)

TRIP

Pin Symbol

Name/Function

CIRCUIT

PNPN1

PNPN2

TIP

Tip signal from customer.

GND

Supply voltage to gate

(–20 V to –80 V).

—

RING

Test Point, do not use.

TEST

POINT

Ring signal from customer.

TRIP

CIRCUIT

Protected ring signal to line-feed-

circuitry.

RING

GND

Device ground/fault current

return.

12-1590 (C)

Device ground/fault current

return.

Figure 1. Functional and Pin Diagram

Protected tip signal to line-feed

circuitry.

Note: Pins 1 and 4 must always be connected to the protection

resistors shown in Figures 4 and 5 (Line Feed Circuitry).The

SLIC can be connected either to the protected outputs (pins

5 and 8) or to the inputs (pins 1 and 4).

Data Sheet

October 1997

L7591 Subscriber Line Interface Circuit Protector

Absolute Maximum Ratings ^{(At 25 °C)}

Stresses in excess of the Absolute Maximum Ratings can cause permanent damage to the device. These are

absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in

excess of those given in the operational sections of the data sheet. Exposure to Absolute Maximum Ratings for

extended periods can adversely affect the device reliability.

Parameter

Symbol

Value

Unit

Ambient Operating Temperature

Storage Temperature Range

Pin Soldering Temperature (t = 15 s max)

Supply Voltage

Tstg

—

–40 to +85

–40 to +125

300

°C

–83

Peak Pulse Current: * (See Figure 2.)

10 x 1000 µs

5 x 320 µs

2 x 10 µs

—

Nonrepetitive Peak ON-state Current:

t = 1 s, f = 50 Hz to 60 Hz

t = 10 ms, f = 50 Hz to 60 Hz

—

3.5

Maximum Gate Current (Half Sine Wave 10 ms)

—

Maximum Voltage:

TIP or RING to Gnd

VS to Gnd

—

–100

–80

*Pulse Waveform Data:

10 x 1000 µs tr = 10 µs

tp = 1000 µs

5 x 320 µs

2 x 10 µs

tr = 5 µs

tr = 2 µs

tp = 320 µs

tp = 10 µs

% IPP

100

Figure 2. Pulse Waveform

Lucent Technologies Inc.

Data Sheet

October 1997

L7591 Subscriber Line Interface Circuit Protector

Electrical Speciﬁcations ^(TA = 25 °C)

The minimum and/or maximum limits speciﬁed for the parameters are based on the absolute system. The alge-

braic sign only applies to the direction of the parameter. These requirements apply to either the TIP or RING termi-

nal; however, the device is capable of simultaneous Tip and Ring surges and continuous current, as noted below in

Tip and Ring leads. See Figure 3 and Table 5 for symbol and test condition deﬁnition.

Table 2. Electrical Characteristics D1 and D2

Characteristic

Symbol

Test Conditions

Min Typ Max Unit

Forward Voltage

IP = 5 A, tP = 1 ms

—

1.6

5.2

Peak Forward Voltage

VFP

IPP = 30 A, 10 x 1000 µs

Table 3. Electrical Characteristics, PNPN Circuitry

Characteristic

Symbol

Test Conditions

Min

Typ

Max

Unit

Gate Trigger Current

Holding Current

Trip Voltage

IGT

VS = 48 V

tP = 10 ms, VS = 48 V

0.2

–150

—

–250

VS –2.0 VS –2.8

Dynamic Trip Voltage

VSGL

IPP = 30 A, VS = –48 V,

—

–51

–63

10 x 1000 µs

Reverse Leakage Current:

VS to Tip or Ring

TA = 25 °C

IRG

VS = –75 V

—

0.12

—

µA

TA = 70 °C

dv/dt Sensitivity

On-state Voltage:

IT = 0.5 A

—

VON

—

Tip or Ring Lead

±1000

—

V/µs

tP = 1 ms

—

–1.3

–2.3

—

IT = 3.0 A

—

Table 4. Electrical Characteristics, Diode and PNPN Circuitry

Characteristic

Symbol

Test Conditions

Min

Typ

Max

Unit

Reverse Leakage Current:

(Gate Open)

VR = –85 V

TA = 25 °C

TA = 70 °C

—

0.14

—

µA

Off-state Capacitance:

VR = –3 V

Coff

—

f = 1 MHz

—

VR = –48 V

Lucent Technologies Inc.

Data Sheet

October 1997

L7591 Subscriber Line Interface Circuit Protector

Characteristic Curves

IPP

VON

VSGL

IPP

Figure 3.Typical Trip Characteristics of the SLIC Protector

Table 5. Symbols Deﬁnition

Symbol

Parameter

PNPN holding current

IGT

Gate trigger current out of pin VS

Pulse current

IPP

IRG

Peak pulse current

Reverse leakage current VS to Tip or Ring

Tip or Ring current when PNPN is on

Reverse leakage current, Tip or Ring to Ground

Forward voltage, Tip or Ring to Ground

Peak forward voltage, Tip or Ring to Ground

Trip voltage, Tip or Ring to VS

VFP

VSGL

VON

Dynamic trip voltage, Tip or Ring to VS

PNPN on voltage at IT

Tip or Ring voltage when PNPN is off

Off-state capacitance, Tip or Ring to Ground

Coff

Lucent Technologies Inc.

Data Sheet

October 1997

L7591 Subscriber Line Interface Circuit Protector

Applications

PROTECTED

TIP

TRIP

CIRCUIT

–V

TRIP

CIRCUIT

PROTECTED

RING

12-1632 (C)

RPT and RPR must be properly selected for proper operation and/or response.

Figure 4. Standard Conﬁguration

TRIP

VMEAS

CIRCUIT

–48 V

TRIP

CIRCUIT

VMEAS

12-1596 (C)

Figure 5.Test Circuit

TIP

PTC

CARBON

BLOCK

L7591AB

SLIC

PROTECTOR

BATTERY

FEED*

RELAYS

CARBON

BLOCK

PTC

RING

(–20 V TO –80 V)

12-1598 (C)

*An example device is Lucent Technologies Microelectronics Group’s LB1276 High Balance SLIC.

Figure 6. Fully Protected Electronic TIP-RING Interface (Not all devices needed in all applications)

Lucent Technologies Inc.

Data Sheet

October 1997

L7591 Subscriber Line Interface Circuit Protector

Outline Drawings

8-Pin DIP (L7591AB)

Dimensions are in millimeters.

PIN #1 IDENTIFIER ZONE

SEATING PLANE

0.38 MIN

2.54 TYP

0.023 MAX

5-4410r.1

Package Dimensions

Maximum Width Maximum Width Maximum Height

Number of

Pins

Package

Description

Maximum Length

(L)

Without Leads

(B)

Including Leads

(W)

Above Board

(H)

(N)

PDIP3 (Plastic

Dual-In-Line

Package)

10.16

6.48

7.87

5.46

Lucent Technologies Inc.

Data Sheet

October 1997

L7591 Subscriber Line Interface Circuit Protector

Outline Drawings (continued)

8-Pin, SONB (L7591AS)

Dimensions are in millimeters.

PIN #1 IDENTIFIER ZONE

SEATING PLANE

0.10

0.024

0.020 MAX

1.27 TYP

0.36 MIN

5-4414r.2

Package Dimensions

Number of

Package

Description

Maximum Width Maximum Width Maximum Height

Pins

(N)

Maximum Length

(L)

Without Leads

(B)

Including Leads

(W)

Above Board

(H)

SONB (Small

Outline, Narrow

Body)

5.08

4.01

6.17

1.73

Lucent Technologies Inc.

Data Sheet

October 1997

L7591 Subscriber Line Interface Circuit Protector

Ordering Information

Device Part No.

ATTL7591AB

Description

SLIC Protector

Package

8-Pin DIP

Comcode

107056582

107056590

107232787

ATTL7591AS

8-Pin SONB

ATTL7591AS-TR

8-Pin SONB (Tape and Reel)

For additional information, contact your Microelectronics Group Account Manager or the following:

INTERNET:

E-MAIL:

http://www.lucent.com/micro

docmaster@micro.lucent.com

U.S.A.:

Microelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18103

1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)

ASIA PACIFIC: Microelectronics Group, Lucent Technologies Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256

Tel. (65) 778 8833, FAX (65) 777 7495

JAPAN:

Microelectronics Group, Lucent Technologies Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan

Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700

EUROPE:

Data Requests: MICROELECTRONICS GROUP DATALINE:Tel. (44) 1189 324 299, FAX (44) 1189 328 148

Technical Inquiries: GERMANY: (49) 89 95086 0 (Munich), UNITED KINGDOM: (44) 1344 865 900 (Bracknell),

FRANCE: (33) 1 41 45 77 00 (Paris), SWEDEN: (46) 8 600 7070 (Stockholm), FINLAND: (358) 9 4354 2800 (Helsinki),

ITALY: (39) 2 6601 1800 (Milan), SPAIN: (34) 1 807 1441 (Madrid)

Lucent Technologies Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No

rights under any patent accompany the sale of any such product(s) or information.

Printed in U.S.A.

October 1997

DS98-034ALC (Replaces DS97-158ALC)

Printed On

Recycled Paper

L7591 [AGERE]

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