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ATTL7591AB

Description
Surge Protection Circuit, PDIP8, PLASTIC, DIP-8
CategoryWireless rf/communication    Telecom circuit   
File Size162KB,8 Pages
ManufacturerLegerity
Download Datasheet Parametric Compare View All

ATTL7591AB Overview

Surge Protection Circuit, PDIP8, PLASTIC, DIP-8

ATTL7591AB Parametric

Parameter NameAttribute value
MakerLegerity
Parts packaging codeDIP
package instructionDIP,
Contacts8
Reach Compliance Codeunknow
JESD-30 codeR-PDIP-T8
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Package shapeRECTANGULAR
Package formIN-LINE
Certification statusNot Qualified
Maximum seat height5.46 mm
surface mountNO
Telecom integrated circuit typesSURGE PROTECTION CIRCUIT
Temperature levelINDUSTRIAL
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
width7.62 mm
Data Sheet
October 1997
L7591 Subscriber Line Interface Circuit Protector
Features
s
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
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).
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
Power-cross protection
— 3.5 A
PEAK
, 50 Hz to 60 Hz, 1 s
— 5.0 A
PEAK
, 50 Hz to 60 Hz, 10 ms
Gate trigger current, 15 mA max
Up to –80 V capability
Holding current, 150 mA min
s
s
s
s
Pin Information
Table 1. Pin Description
(Applies to DIP and SONB packages)
Pin
1
2
3
4
5
6
7
8
Symbol
TIP
V
S
RING
PR
GND
GND
PT
Name/Function
Tip signal from customer.
Supply voltage to gate
(–20 V to –80 V).
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.
V
S
2
TIP
1
TRIP
CIRCUIT
PNPN1
7 GND
D1
8 PT
TEST
POINT
3
PNPN2
TRIP
CIRCUIT
D2
6 GND
RING
4
5 PR
12-1590 (C)
Figure 1. Functional and Pin Diagram
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).

ATTL7591AB Related Products

ATTL7591AB ATTL7591AS-TR
Description Surge Protection Circuit, PDIP8, PLASTIC, DIP-8 Surge Protection Circuit, PDSO8, PLASTIC, SONB-8
Maker Legerity Legerity
Parts packaging code DIP SON
package instruction DIP, SOP,
Contacts 8 8
Reach Compliance Code unknow unknow
JESD-30 code R-PDIP-T8 R-PDSO-G8
Number of functions 1 1
Number of terminals 8 8
Maximum operating temperature 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code DIP SOP
Package shape RECTANGULAR RECTANGULAR
Package form IN-LINE SMALL OUTLINE
Certification status Not Qualified Not Qualified
Maximum seat height 5.46 mm 1.73 mm
surface mount NO YES
Telecom integrated circuit types SURGE PROTECTION CIRCUIT SURGE PROTECTION CIRCUIT
Temperature level INDUSTRIAL INDUSTRIAL
Terminal form THROUGH-HOLE GULL WING
Terminal pitch 2.54 mm 1.27 mm
Terminal location DUAL DUAL
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