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參數(shù)資料
| 型號： | L8551 |
| 廠商： | Lineage Power |
| 英文描述： | Low-Power SLIC(低功耗用戶線接口（SLIC）) |
| 中文描述： | 低功耗用戶接口（低功耗用戶線接口電路（SLIC）） |
| 文件頁數(shù)： | 7/32頁 |
| 文件大小： | 526K |
| 代理商： | L8551 |
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Lucent Technologies Inc.
7
Data Sheet
March 1997
L8551 Low-Power SLIC
Recommended Operating Conditions
Electrical Characteristics
Minimum and maximum values are testing requirements. Typical values are characteristic of the device and are the
result of engineering evaluations. Typical values are for information purposes only and are not part of the testing
requirements. Minimum and maximum values apply across the entire temperature range (–40
°
C to +85
°
C) and
the entire battery range unless otherwise specified. Typical is defined as 25
°
C, V
CC
= 5.0 V, V
BAT
= –48 V, and
I
LIM
= 40 mA. Positive currents flow into the device. Test circuit is Figure 5 unless noted.
Table 4. Power Supply
* This parameter is not tested in production. It is guaranteed by design and device characterization.
Parameter
Min
–40
4.75
–24
—
5
—
150
Typ
—
5.0
–48
10
40
1
600
Max
85
5.25
–60
I
LIM
45
2.2
1300
Unit
°
C
V
V
mA
mA
V
rms
Ambient Temperature
V
CC
Supply Voltage
V
BAT
Supply Voltage
Loop Closure Threshold-detection Programming Range
dc Loop Current-limit Programming Range
On- and Off-hook 2-wire Signal Level
ac Termination Impedance Programming Range
Parameter
Min
Typ
Max
Unit
Power Supply—Powerup, No Loop Current
I
CC
I
BAT
(V
BAT
= –48 V)
Power Dissipation (V
BAT
= –48 V)
Power Supply—Scan, No Loop Current
I
CC
I
BAT
(V
BAT
= –48 V)
Power Dissipation (V
BAT
= –48 V)
Power Supply Rejection 500 Hz to 3 kHz
(See Figures 5, 6, 16, and 17.)*
V
CC
V
BAT
Thermal Protection Shutdown (T
jc
)
Thermal Resistance Still Air, Junction to Ambient (
θ
JA
)
(44-pin PLCC)
(32-pin PLCC)
—
—
—
4.6
–2.3
135
5.6
–2.6
155
mA
mA
mW
—
—
—
5.5
–1.1
80
7.45
–1.2
95
mA
mA
mW
30
45
—
—
—
165
—
—
—
dB
dB
°
C
—
—
47
60
—
—
°
C/W
°
C/W
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