L7581 Agere Systems, L7581 Datasheet
L7581
Manufacturer Part Number
L7581
Description
Ringing Access Switch
Manufacturer
Agere Systems
Datasheet
1.L7581.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L7581AAE
Manufacturer:
LUCENT
Quantity:
20 000
Company:
Part Number:
L7581AC
Manufacturer:
LUCENT
Quantity:
5 510
Part Number:
L7581BAE
Manufacturer:
LUCENT
Quantity:
20 000
L7581/2/3 and L8581
Ringing, Tip/Ring, and Line Card Access Switches
Features
Applications
Small size/surface-mount packaging
Monolithic IC reliability
Low impulse noise
Make-before-break, break-before-make operation
Clean, bounce-free switching
Low, matched ON resistance
Built-in current limiting, thermal shutdown, and
SLIC protection
5 V only operation, very low power consumption
Battery monitor, all OFF state upon loss of battery
No EMI
Latched logic level inputs, no drive circuitry
Only one external protector required
Central office
DLC
PBX
DAML
HFC/FITL
Description
The L7581/8581 provides solid-state access for
power ringing applications. The L7582 provides
access for power ringing and line test. The L7583
line card access switch (LCAS) provides power ring-
ing, line test, and self-test access.
Incorporated into the L758xA is a diode bridge/SCR
clamping circuit, current-limiting circuitry, and thermal
shutdown mechanism. The L758xB provides a diode
bridge clamping circuit, current-limiting circuitry, and
thermal shutdown mechanism.
A single external protection device is required. Agere
Systems Inc. has available characterized protection
devices designed to work with Agere LCAS devices
(contact a Agere account representative for informa-
tion about these products).
Agere LCAS devices require a 5 V supply to operate.
Additionally, a battery monitor circuit is included,
which forces an all-off state if the battery is lost.
The L7581 device is packaged in a 16-pin, plastic
DIP package (L7581AC/BC) and a 16-pin, plastic
SOG package (L7581AAE/BAE). These devices are
pin compatible with the L7541 device.
The L7582 device is packaged in a 16-pin, plastic
DIP package (L7582AC/BC) and a 16-pin,
plastic SOG package (L7582AAE/BAE). The
L7582AAE/BAE are pin compatible with the
L7542AAE/BAE.
The L7583A/B/C/D device is packaged in a 24-pin,
plastic DIP (L7583AF/BF/CF/DF) and a 28-pin,
plastic SOG package (L7583AAJ/BAJ/CAJ/DAJ).
Product Brief
June 2000
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L7581 Summary of contents
Page 1
... Agere LCAS devices require supply to operate. Additionally, a battery monitor circuit is included, which forces an all-off state if the battery is lost. The L7581 device is packaged in a 16-pin, plastic DIP package (L7581AC/BC) and a 16-pin, plastic SOG package (L7581AAE/BAE). These devices are pin compatible with the L7541 device. ...
Page 2
... JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 6778-8833, TAIWAN: (886) 2-2725-5858 (Taipei) EUROPE: Tel. (44) 7000 624624, FAX (44) 1344 488 045 Agere Systems 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. Copyright © 2002 Agere Systems Inc. All Rights Reserved ...