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參數(shù)資料
| 型號： | HC55151CM |
| 廠商： | INTERSIL CORP |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | Low Power Universal SLIC Family |
| 中文描述： | TELECOM-SLIC, PQCC32 |
| 封裝： | PLASTIC, MS-016AE, LCC-32 |
| 文件頁數(shù)： | 25/35頁 |
| 文件大?。?/td> | 382K |
| 代理商： | HC55151CM |
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4-25
Battery Selection
Battery selection is a technique, for a two battery supply
system, where the SLIC automatically diverts the loop
current to the most appropriate supply for a given loop
length. This results in significant power savings and lowers
the total power consumption on short loops. This technique
is particularly useful if most of the lines are short, and the on
hook condition requires a -48V battery. In Figure 26, it can
be seen that for long loops the majority of the current comes
from the high battery supply (V
BH
) and for short loops from
the low battery supply (V
BL
).
FIGURE 26. BATTERY SELECTION (DUAL SUPPLY SYSTEMS)
L
0
35
30
25
20
15
10
5
1
9
8
6
7
5
5
5
5
4
4
4
3
3
2
2
1
2
LOOP RESISTANCE (
)
1
40
VBH = -48V
VBL = -24V
RILim = 33.2k
V
BL
V
BH
V
BH
V
BL
Pinouts - 28 Lead PLCC Packages
HC55120
(28 LEAD PLCC)
TOP VIEW
HC55121
(28 LEAD PLCC)
TOP VIEW
HC55130
(28 LEAD PLCC)
TOP VIEW
R
C
2
3
HC55140
(28 LEAD PLCC)
TOP VIEW
R
1
2
D
C
C
C
S
C
D
R
2
P
1
V
28
N
27
V
26
Z
4
C
3
RSYNC
ILIM
ROH
RD
AGND
GKD
V
CC
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
BGND
TIP
VBH
VBL
RING
CRT
RDC_RAC
D
C
C
C
S
C
D
R
2
P
1
V
28
S
27
V
26
Z
4
C
3
RSYNC_REV
ILIM
ROH
RD
AGND
GKD
V
CC
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
BGND
TIP
VBH
VBL
RING
CRT_REV
RDC_RAC
D
C
C
C
S
C
D
P
1
V
28
N
27
V
26
Z
4
RSYNC
ILIM
ROH
RD
AGND
NC
V
CC
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
BGND
TIP
VBH
VBL
RING
CRT
RDC_RAC
D
C
C
C
S
C
D
P
V
28
N
27
V
26
Z
4
C
3
RSYNC_REV
ILIM
ROH
RD
AGND
GKD_LVM
V
CC
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
BGND
TIP
VBH
VBL
RING
CRT_REV_
RDC_RAC
LVM
HC55120, HC55121, HC55130, HC55131, HC55140, HC55141, HC55142, HC55143, HC55150, HC55151
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HC5515CM | 制造商:Rochester Electronics LLC 功能描述:CO/PABX SLIC,53DB LONG BAL,28PLCC,COMMER - Bulk |
| HC5515CMZ | 功能描述:電信線路管理 IC CO/PABX SLIC 53DB LONG BAL 28PLCC COME RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| HC5515CP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HC5515IM | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述: |
| HC5515IMR4717 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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