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參數(shù)資料
| 型號： | L7583B |
| 廠商： | Lineage Power |
| 英文描述： | Line Card Access Switch(線卡存取開關) |
| 中文描述： | 線卡接入交換機（線卡存取開關） |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 404K |
| 代理商： | L7583B |
2
Lucent Technologies Inc.
Data Sheet
November 1999
L7583A/B/C/D Line Card Access Switch
Description
(continued)
The L7583Bxx and L7583Dxx versions provide only an
integrated diode bridge along with current limiting and
thermal shutdown (see Figure 2 for version B). This will
cause positive faults to be directed to ground and nega-
tive faults to battery. In either polarity, faults are
reduced by the current-limit and/or thermal shutdown
mechanisms.
To protect the L7583 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
L7583 will meet all relevant ITU-T, LSSGR, FCC, or
UL* protection requirements.
The L7583 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 L7583 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 L7583, only as a
reference for the integrated protection circuit. The
L7583 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 and ring test switch will
draw a nominal 2 mA or 4 mA from the ring generator.
The L7583A/B/C/D device is packaged in a 24-pin,
plastic DIP (L7583AF/BF/CF/DF) and in a 28-pin,
plastic SOG (L7583AAJ/BAJ/CAJ/DAJ).
* ULis a registered trademark of Underwriters Laboratories, Inc.
Pin Information
12-2364.a (F)
Note: Shown with A/C version protection. The 24-pin DIP is avail-
able with either A/C or B/D version protection.
Figure 1. 24-Pin, Plastic DIP (600 mil)
12-2365.d (F)
Note: Shown with B/D version protection. The 28-pin SOG is avail-
able with either A/C or B/D version protection.
Figure 2. 28-Pin, Plastic SOG
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
V
BAT
R
BAT
R
LINE
NC
F
GND
NC
NC
T
LINE
V
DD
SW1
8
9
10
LATCH
R
RINGING
T
TESTout
SW2
SW3
SW5
SW4
SW7
SW9
SW8
SW10
SW6
T
TESTin
T
BAT
T
RINGING
NC
IN
TESTin
R
TESTout
R
TESTin
NC
11
12
IN
RING
D
GND
T
SD
IN
TESTout
CONTROL
LOGIC
SCR
AND
TRIP
CKT
28
27
26
25
24
23
22
20
19
18
17
21
16
15
1
2
3
4
5
6
7
8
V
BAT
R
BAT
R
LINE
NC
F
GND
NC
NC
T
LINE
V
DD
SW1
9
10
11
12
LATCH
R
RINGING
NC
SW2
SW3
SW5
SW4
SW7
SW9
SW8
SW10
SW6
T
TESTin
T
BAT
T
RINGING
T
TESTout
IN
TESTin
R
TESTout
R
TESTin
NC
13
14
IN
RING
D
GND
T
SD
IN
TESTout
NC
NC
NC
NC
CONTROL
LOGIC
相關PDF資料 |
PDF描述 |
|---|---|
| L7583C | Line Card Access Switch(線卡存取開關) |
| L7583D | Line Card Access Switch(線卡存取開關) |
| L7583A | Line Card Access Switch(線卡存取開關) |
| L7583 | Line Test,Tip/Ring, Line Card Access Switches(線測試，振鈴，線卡存取開關) |
| L7585F | Full-Feature, Low-Power SLIC and Switch(特點齊全，低功耗用戶環(huán)路接口電路和開關) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L7583BAJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| L7583BF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| L7583CAJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| L7583CF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| L7583DAJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
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