View L7591_319178.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

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 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).
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 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
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 VS -- 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-feedcircuitry. Device ground/fault current return. Device ground/fault current return. Protected tip signal to line-feed circuitry.
VS 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).
L7591 Subscriber Line Interface Circuit Protector
Data Sheet October 1997
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 s 5 x 320 s 2 x 10 s 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 *Pulse Waveform Data: 10 x 1000 s 5 x 320 s 2 x 10 s tr = 10 s tr = 5 s tr = 2 s tp = 1000 s tp = 320 s tp = 10 s Symbol TA Tstg -- VS -- -- -- -- -- -- -- -- Value -40 to +85 -40 to +125 300 -83 30 40 80 3.5 5 2 -100 -80 Unit C C C V A A A A A A V V
% 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 Forward Voltage Peak Forward Voltage Symbol VF VFP Test Conditions IP = 5 A, tP = 1 ms IPP = 30 A, 10 x 1000 s Min -- -- Typ 1.6 5.2 Max 3 15 Unit V V
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 IGT IH VT VSGL IRG -- -- -- VON -- -- Test Conditions VS = 48 V tP = 10 ms, VS = 48 V dc IPP = 30 A, VS = -48 V, 10 x 1000 s VS = -75 V -- -- Tip or Ring Lead tP = 1 ms -- -- Min 0.2 -150 -- -- Typ -- -250 VS -2.0 -51 Max 15 -- VS -2.8 -63 Unit mA mA V V
-- -- 1000 -- --
0.12 -- -- -1.3 -2.3
5 50 -- -- --
A A V/s V V
Table 4. Electrical Characteristics, Diode and PNPN Circuitry Characteristic Reverse Leakage Current: (Gate Open) TA = 25 C TA = 70 C Off-state Capacitance: VR = -3 V VR = -48 V Symbol IR -- -- Coff -- -- Test Conditions VR = -85 V -- -- f = 1 MHz -- -- -- -- -- -- 0.14 -- 50 40 5 50 -- -- A A pF pF Min Typ Max Unit
Lucent Technologies Inc.
3
L7591 Subscriber Line Interface Circuit Protector
Data Sheet October 1997
Characteristic Curves
I IP
IPP
VON VSGL VR IR IH
VF V
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 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
4
Lucent Technologies Inc.
Data Sheet October 1997
L7591 Subscriber Line Interface Circuit Protector
Applications
TIP RPT TRIP CIRCUIT 2 -VS 7 1 8 PROTECTED TIP
3 TRIP CIRCUIT RPR RING 4
6
5
PROTECTED RING
12-1632 (C)
RPT and RPR must be properly selected for proper operation and/or response.
Figure 4. Standard Configuration
IP 1 TRIP CIRCUIT 2 -48 V 7 8 VMEAS
3 TRIP CIRCUIT 4 IP
6 VMEAS
5
12-1596 (C)
Figure 5. Test Circuit
TIP PTC CARBON BLOCK RELAYS
1
8
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
L7591 Subscriber Line Interface Circuit Protector
Data Sheet October 1997
Outline Drawings
8-Pin DIP (L7591AB)
Dimensions are in millimeters.
L N
B
1 PIN #1 IDENTIFIER ZONE W
H SEATING PLANE 0.38 MIN 2.54 TYP 0.023 MAX
5-4410r.1
Package Description PDIP3 (Plastic Dual-In-Line Package)
Number of Pins (N) 8
Package Dimensions Maximum Length (L) 10.16 Maximum Width Without Leads (B) 6.48 Maximum Width Including Leads (W) 7.87 Maximum Height Above Board (H) 5.46
6
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 1.27 TYP 0.020 MAX 0.024 0.36 MIN
5-4414r.2
Package Description SONB (Small Outline, Narrow Body)
Number of Pins (N) 8
Package Dimensions Maximum Length (L) 5.08 Maximum Width Without Leads (B) 4.01 Maximum Width Including Leads (W) 6.17 Maximum Height Above Board (H) 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: 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.
Copyright (c) 1997 Lucent Technologies Inc. All Rights Reserved Printed in U.S.A.
October 1997 DS98-034ALC (Replaces DS97-158ALC)
Printed On Recycled Paper

▲Up To Search▲

Price & Availability of L7591

	To Download L7591 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .