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參數(shù)資料
| 型號： | L7581 |
| 廠商： | Lineage Power |
| 英文描述： | Ringing Access Switch(振鈴存取開關(guān)) |
| 中文描述： | 振鈴接入交換機(jī)（振鈴存取開關(guān)） |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 304K |
| 代理商： | L7581 |
2
Lucent Technologies Inc.
Data Sheet
November 1999
L7581 Ringing Access Switch
Description
(continued)
To protect the L7581 from an overvoltage fault condi-
tion, use of a secondary protector is required. The sec-
ondary protector must limit the voltage seen at the tip/
ring terminals to prevent the breakdown voltage of the
switches from being exceeded. To minimize stress on
the solid-state contacts, use of a foldback- or crowbar-
type secondary protector is recommended. With proper
choice of secondary protection, a line card using the
L7581 will meet all relevant ITU-T, LSSGR, FCC, or
UL* protection requirements.
The L7581 operates off of a 5 V supply only. This gives
the device extremely low idle and active power dissipa-
tion and allows use with virtually any range of battery
voltage. This makes the L7581 especially appropriate
for remote power applications such as DAML or FOC/
FITL or other Bellcore TA 909 applications where
power dissipation is particularly critical.
A battery voltage is also used by the L7581, only as a
reference for the integrated protection circuit. The
L7581 will enter an all OFF state upon loss of battery.
During power ringing, to turn on and maintain the ON
state, the ring access switch will draw a nominal 2 mA
or 4 mA from the ring generator.
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.
* ULis a registered trademark of Underwriters Laboratories, Inc.
Pin Information
12-2306.a (C)
Note: Shown with A version protection. The 16-pin DIP is available
with either A or B version protection.
Figure 1. 16-Pin, Plastic DIP
12-2307.a (F)
Note: Shown with B version protection. The 16-pin SOG is available
with either A or B version protection.
Figure 2. 16-Pin, Plastic SOG
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
BAT
NC
R
BAT
LATCH
INPUT
D
GND
R
RINGING
F
GND
T
RINGING
V
DD
T
SD
SCR
AND
TRIP
CKT
NC
T
BAT
T
LINE
NC
R
LINE
TEMPERATURE
SHUTDOWN
SW1
SW2
SW4
SW3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
BAT
R
BAT
R
LINE
LATCH
INPUT
D
GND
R
RINGING
F
GND
NC
T
RINGING
T
SD
T
BAT
T
LINE
NC
V
DD
NC
TEMPERATURE
SHUTDOWN
SW1
SW2
SW4
SW3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L7582 | Ring Access Switch(振鈴存取開關(guān)) |
| L7583B | Line Card Access Switch(線卡存取開關(guān)) |
| L7583C | Line Card Access Switch(線卡存取開關(guān)) |
| L7583D | Line Card Access Switch(線卡存取開關(guān)) |
| L7583A | Line Card Access Switch(線卡存取開關(guān)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L7581AAE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| L7581AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| L7581BAE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| L7581BC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| L7582 | 制造商:AGERE 制造商全稱:AGERE 功能描述:Tip Ring Access Switch |
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