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參數(shù)資料
| 型號： | HC5549 |
| 廠商： | Intersil Corporation |
| 英文描述： | Low Power SLIC with Battery Switch(用戶線接口電路) |
| 中文描述： | 低功耗用戶接口與電池開關(guān)（用戶線接口電路） |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 125K |
| 代理商： | HC5549 |
4-4
DC PARAMETERS
Loop Current Limit Programming Range
Max Low Battery = -52V, BSEL = 0
15
-
45
mA
Loop Current Accuracy
I
L
= 25mA, BSEL = 0
-
-
10
%
Loop Current During Low Power Standby
Forward polarity only.
17
-
26
mA
Open Circuit Voltage
(|Tip - Ring|)
BSEL = 0
14
15.5
17
V
BSEL = 1
37.5
40
42.5
V
Low Power Standby Open Circuit Voltage (Tip - Ring)
BSEL = 1
43
45
47
V
Ring Trip Programming Current Accuracy
-
-
10
%
Ring Trip Comparator Threshold
2.3
2.6
2.9
V
Switch Hook Programming Range
5
-
15
mA
Switch Hook Programming Accuracy
-
-
10
%
Dial Pulse Distortion
-
1
-
%
Ground Key Threshold
-
12
-
mA
Thermal Alarm Output
IC junction temperature
-
175
-
o
C
RELAY DRIVER
On Voltage
I
L
= 45 mA
-
-
0.60
V
LOGIC INPUTS (F0, F1, F2, E0, SWC)
Input Low Voltage
-
-
0.8
V
Input High Voltage
2.0
-
-
V
Input Low Current
V
IL
= 0.4V
-20
-
-
μ
A
Input High Current
V
IH
= 2.4V
-
-
5
μ
A
LOGIC OUTPUTS (DET, ALM)
Output Low Voltage
I
OL
= 5mA
-
-
0.4
V
Output High Voltage
I
OH
= 100
μ
A
2.4
-
-
V
SUPPLY CURRENTS
(Supply currents not listed are considered negligible and do not contribute significantly to total power dissipation. All
measurements made under open circuit load conditions.)
Low Power Standby
I
CC
2.0
3.7
6.0
mA
I
BH
, BSEL = 1
-
0.375
0.600
mA
Forward or Reverse (Note 5)
I
CC
2.5
4.0
6.0
mA
I
BL
, BSEL = 0
-
1.0
2.5
mA
Forward
I
CC
3.5
4.5
8.0
mA
I
BL
, BSEL = 1
-
0.7
2.0
mA
I
BH
, BSEL = 1
-
1.0
2.5
mA
Power Denial
I
CC
0.5
3.0
6.0
mA
I
BL
, BSEL = 1 or 0
-
0.2
0.5
mA
Forward Lookback
I
LL
-
-
10.0
mA
I
BL
, V
BL
= -24V
-
-
25.0
mA
Electrical Specifications
Unless Otherwise Specified, T
A
= -40
o
C to 85
o
C, V
BL
= -24V, V
BH
= -48V, V
CC
= +5V, AGND = BGND = 0V, loop
current limit = 25mA. All AC Parameters are specified at 600
2-wire terminating impedance over the frequency
band of 300Hz to 3.4kHz. Protection resistors = 0
.
(Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
HC5549
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