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參數資料
| 型號： | L8581 |
| 廠商： | Lineage Power |
| 英文描述： | Line Test,Tip/Ring, Line Card Access Switches(線測試，振鈴，線卡存取開關) |
| 中文描述： | 在線測試，提示/環，線卡接入交換機（線測試，振鈴，線卡存取開關） |
| 文件頁數： | 1/2頁 |
| 文件大小： | 425K |
| 代理商： | L8581 |
Product Brief
June 2000
L7581/2/3 and L8581
Ringing, Tip/Ring, and Line Card Access Switches
Features
I
Small size/surface-mount packaging
I
Monolithic IC reliability
I
Low impulse noise
I
Make-before-break, break-before-make operation
I
Clean, bounce-free switching
I
Low, matched ON resistance
I
Built-in current limiting, thermal shutdown, and
SLIC protection
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5 V only operation, very low power consumption
I
Battery monitor, all OFF state upon loss of battery
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No EMI
I
Latched logic level inputs, no drive circuitry
I
Only one external protector required
Applications
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Central office
I
DLC
I
PBX
I
DAML
I
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.
Lucent Technologies has available characterized
protection devices designed to work with Lucent
LCAS devices (contact a Lucent Technologies
account representative for information about these
products).
Lucent LCAS devices require a 5 V supply to oper-
ate. 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).
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