ATTL7591AS-TR Agere Systems, ATTL7591AS-TR Datasheet

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ATTL7591AS-TR

Manufacturer Part Number
ATTL7591AS-TR
Description
Manufacturer
Agere Systems
Datasheet
October 1997
Features
Pin Information
Table 1. Pin Description
(Applies to DIP and SONB packages)
Note: Pins 1 and 4 must always be connected to the protection
Pin Symbol
Shunts lightning pulses to ground
— Positive or negative 30 A, 10 x 1000 s
— Positive or negative 40 A, 5 x 320 s
— Positive or negative 80 A, 2 x 10 s
— 3.5 A
— 5.0 A
Gate trigger current, 15 mA max
1
2
3
4
5
6
7
8
Power-cross protection
Up to –80 V capability
Holding current, 150 mA min
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).
RING
GND
GND
TIP
PR
PT
V
PEAK
PEAK
S
, 50 Hz to 60 Hz, 1 s
, 50 Hz to 60 Hz, 10 ms
Tip signal from customer.
Supply voltage to gate
Test Point, do not use.
Ring signal from customer.
Protected ring signal to line-feed-
circuitry.
Device ground/fault current
return.
Device ground/fault current
return.
Protected tip signal to line-feed
circuitry.
(–20 V to –80 V).
L7591 Subscriber Line Interface Circuit Protector
Name/Function
Description
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
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).
POINT
TEST
RING
TIP
V
S
1
2
3
4
Figure 1. Functional and Pin Diagram
CIRCUIT
CIRCUIT
TRIP
TRIP
S
, current is conducted
PNPN1
PNPN2
D2
D1
12-1590 (C)
8
7
6
5
PT
GND
GND
PR

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ATTL7591AS-TR Summary of contents

Page 1

October 1997 L7591 Subscriber Line Interface Circuit Protector Features Shunts lightning pulses to ground — Positive or negative 1000 s — Positive or negative 320 s — Positive or negative 80 A, ...

Page 2

L7591 Subscriber Line Interface Circuit Protector Absolute Maximum Ratings 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 ...

Page 3

Data Sheet October 1997 Electrical Specifications 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 ...

Page 4

L7591 Subscriber Line Interface Circuit Protector Characteristic Curves V SGL Figure 3. Typical Trip Characteristics of the SLIC Protector Table 5. Symbols Definition Symbol Parameter I PNPN holding current H I Gate trigger current out of pin ...

Page 5

Data Sheet October 1997 Applications TIP R PT – RING R and R must be properly selected for proper operation and/or response TIP CARBON BLOCK CARBON BLOCK RING *An example device is Lucent Technologies Microelectronics ...

Page 6

L7591 Subscriber Line Interface Circuit Protector Outline Drawings 8-Pin DIP (L7591AB) Dimensions are in millimeters PIN #1 IDENTIFIER ZONE 2.54 TYP Number of Package Pins Description (N) PDIP3 (Plastic 8 Dual-In-Line Package SEATING PLANE ...

Page 7

Data Sheet October 1997 Outline Drawings (continued) 8-Pin, SONB (L7591AS) Dimensions are in millimeters PIN #1 IDENTIFIER ZONE 1.27 TYP Number of Package Pins Description (N) SONB (Small 8 Outline, Narrow Body) Lucent Technologies Inc. L7591 Subscriber ...

Page 8

... L7591 Subscriber Line Interface Circuit Protector Ordering Information Device Part No. ATTL7591AB ATTL7591AS ATTL7591AS-TR For additional information, contact your Microelectronics Group Account Manager or the following: INTERNET: http://www.lucent.com/micro E-MAIL: 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 ...

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