HC5517 Intersil Corporation, HC5517 Datasheet - Page 5

• Manufacturer Part Number: HC5517
• Description: 3 REN Ringing SLIC For ISDN Modem/TA and WLL
• Manufacturer: Intersil Corporation

Functional Diagram
Over Voltage Protection and Longitudinal Current
Protection
The SLIC device, in conjunction with an external protection
bridge, will withstand high voltage lightning surges and
power line crosses.
High voltage surge conditions are as specified in Table 1.
The SLIC will withstand longitudinal currents up to a
maximum or 30mA
performance degradation
.
SENSE 1
SENSE 2
SENSE
TF
RING
RING
RF
TIP
26
15
16
R = 108k
25
14
RMS
TF
R
+
-
, 15mA
100K
100K
100K
100K
4.5K
4.5K
R
R
R
R
RF
64
+
-
RMS
90K
90K
V
25K
25K
REF
per leg, without any
2R
2R
+
+
-
-
TA
R/20
3
F1
R/2
RA
0
0
0
1
1
R
R
90K
VRX
NU
18
17
+2V
F0
0
1
1
0
1
HC5517 TRUTH TABLE
VB/2
REF
OUT 1
12
PLCC/SOIC
HC5517
Loop power Denial Active
Power Down Latch RESET
Power on RESET
RD Active
Normal Loop feed
SHD
RTD
+
-
RTI
-IN 1
OP AMP
28
Longitudinal
Surge
Metallic Surge
T/GND
R/GND
50/60Hz Current
13
PARAMETER
T/GND
R/GND
ACTION
FAULT
V
DET
GM
RING
24
+
-
V
ILMT
10 s Rise/
1000 s Fall
10 s Rise/
1000 s Fall
10 s Rise/
1000 s Fall
11 Cycles
Limited to
10A
TX
19
CONDITION
RF2
11
THERM
RMS
LTD
TEST
V
TABLE 1.
CC
2
NETWORK
RDI
BIAS
SH
TSD
GK
RFC
20
700 (Plastic)
PERFORMANCE
1000 (Plastic)
1000 (Plastic)
1000 (Plastic)
(MAX)
AGND
1
4
5
6
9
7
8
10
21
22
27
BGND
RTD
ALM
RDO
V
SHD
TST
RS
F1
F0
BAT
V
V
UNITS
V
PEAK
PEAK
PEAK
RMS