Agere L7591 Subscriber line interface circuit protector Datasheet

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
■
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
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 VS, current is conducted
through the trip circuit. When the specified trip current 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 package (L7591AS).
Pin Information
Table 1. Pin Description
(Applies to DIP and SONB packages)
Pin
Symbol
1
2
TIP
VS
3
4
5
—
RING
PR
6
GND
7
GND
8
PT
TIP
TRIP
CIRCUIT
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-feedcircuitry.
Device ground/fault current
return.
Device ground/fault current
return.
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).
8 PT
1
D1
PNPN1
VS
2
TEST
POINT
3
7 GND
6 GND
PNPN2
TRIP
CIRCUIT
RING
D2
5 PR
4
12-1590 (C)
Figure 1. Functional and Pin Diagram
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
Ambient Operating Temperature
Storage Temperature Range
Pin Soldering Temperature (t = 15 s max)
Supply Voltage
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
Maximum Gate Current (Half Sine Wave 10 ms)
Maximum Voltage:
TIP or RING to Gnd
VS to Gnd
Symbol
Value
Unit
TA
Tstg
—
VS
–40 to +85
–40 to +125
300
–83
°C
°C
°C
V
—
—
—
30
40
80
A
A
A
—
—
—
3.5
5
2
A
A
A
—
—
–100
–80
V
V
*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
50
0
tr
tp
t
Figure 2. Pulse Waveform
2
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 algebraic sign only applies to the direction of the parameter. These requirements apply to either the TIP or RING terminal; 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
VF
VFP
IP = 5 A, tP = 1 ms
IPP = 30 A, 10 x 1000 µs
—
—
1.6
5.2
3
15
V
V
Forward Voltage
Peak Forward Voltage
Table 3. Electrical Characteristics, PNPN Circuitry
Characteristic
Gate Trigger Current
Holding Current
Trip Voltage
Dynamic Trip Voltage
Reverse Leakage Current:
VS to Tip or Ring
TA = 25 °C
TA = 70 °C
dv/dt Sensitivity
On-state Voltage:
IT = 0.5 A
IT = 3.0 A
Symbol
Test Conditions
Min
Typ
Max
Unit
IGT
IH
VT
VSGL
0.2
–150
—
—
—
–250
VS –2.0
–51
15
—
VS –2.8
–63
mA
mA
V
V
IRG
VS = 48 V
tP = 10 ms, VS = 48 V
dc
IPP = 30 A, VS = –48 V,
10 x 1000 µs
VS = –75 V
—
—
—
VON
—
—
—
—
Tip or Ring Lead
tP = 1 ms
—
—
—
—
±1000
0.12
—
—
5
50
—
µA
µA
V/µs
—
—
–1.3
–2.3
—
—
V
V
Min
Typ
Max
Unit
—
—
0.14
—
5
50
µA
µA
—
—
50
40
—
—
pF
pF
Table 4. Electrical Characteristics, Diode and PNPN Circuitry
Characteristic
Symbol
Test Conditions
Reverse Leakage Current:
(Gate Open)
TA = 25 °C
TA = 70 °C
Off-state Capacitance:
VR = –3 V
VR = –48 V
IR
VR = –85 V
—
—
Coff
—
—
—
—
f = 1 MHz
—
—
Lucent Technologies Inc.
3
Data Sheet
October 1997
L7591 Subscriber Line Interface Circuit Protector
Characteristic Curves
I
IPP
IP
VON
VSGL
VF
VR
V
IR
IH
IT
IPP
Figure 3. Typical Trip Characteristics of the SLIC Protector
Table 5. Symbols Definition
Symbol
IH
IGT
IP
IPP
IRG
IT
IR
VF
VFP
VT
VSGL
VON
VR
Coff
4
Parameter
PNPN holding current
Gate trigger current out of pin VS
Pulse current
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
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
Lucent Technologies Inc.
Data Sheet
October 1997
L7591 Subscriber Line Interface Circuit Protector
Applications
1
TIP
PROTECTED
TIP
8
RPT
TRIP
CIRCUIT
2
7
–VS
3
6
TRIP
CIRCUIT
RPR
RING
4
PROTECTED
RING
5
12-1632 (C)
RPT and RPR must be properly selected for proper operation and/or response.
Figure 4. Standard Configuration
IP
1
8
TRIP
CIRCUIT
VMEAS
2
7
3
6
–48 V
TRIP
CIRCUIT
VMEAS
4
5
IP
12-1596 (C)
Figure 5. Test Circuit
8
1
TIP
PTC
CARBON
BLOCK
RELAYS
6
7
L7591AB
SLIC
PROTECTOR
2
BATTERY
FEED*
CARBON
BLOCK
PTC
RING
4
5
VS
(–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.
5
Data Sheet
October 1997
L7591 Subscriber Line Interface Circuit Protector
Outline Drawings
8-Pin DIP (L7591AB)
Dimensions are in millimeters.
L
N
B
1
W
PIN #1 IDENTIFIER ZONE
H
SEATING PLANE
0.38 MIN
2.54 TYP
0.023 MAX
5-4410r.1
Package
Description
PDIP3 (Plastic
Dual-In-Line
Package)
6
Package Dimensions
Number of
Pins
(N)
Maximum Length
(L)
Maximum Width
Without Leads
(B)
Maximum Width
Including Leads
(W)
Maximum Height
Above Board
(H)
8
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.
L
N
B
1
PIN #1 IDENTIFIER ZONE
W
H
SEATING PLANE
0.10
0.020 MAX
1.27 TYP
0.024
0.36 MIN
5-4414r.2
Package
Description
SONB (Small
Outline, Narrow
Body)
Package Dimensions
Number of
Pins
(N)
Maximum Length
(L)
Maximum Width
Without Leads
(B)
Maximum Width
Including Leads
(W)
Maximum Height
Above Board
(H)
8
5.08
4.01
6.17
1.73
Lucent Technologies Inc.
7
L7591 Subscriber Line Interface Circuit Protector
Data Sheet
October 1997
Ordering Information
Device Part No.
ATTL7591AB
ATTL7591AS
ATTL7591AS-TR
Description
SLIC Protector
SLIC Protector
SLIC Protector
Package
8-Pin DIP
8-Pin SONB
8-Pin SONB (Tape and Reel)
Comcode
107056582
107056590
107232787
For additional information, contact your Microelectronics Group Account Manager or the following:
INTERNET:
http://www.lucent.com/micro
E-MAIL:
[email protected]
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),
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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.
Copyright © 1997 Lucent Technologies Inc.
All Rights Reserved
Printed in U.S.A.
October 1997
DS98-034ALC (Replaces DS97-158ALC)
Printed On
Recycled Paper
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