47
File Number
2884.5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright Intersil Corporation 1999
HC-5502B
EIA/ITU PABX SLIC with 30mA Loop Feed
The Intersil SLIC incorporates many of the BORSHT
functions on a single IC chip. This includes DC battery feed,
a ring relay driver, supervisory and hybrid functions. This
device is designed to maintain transmission performance in
the presence of externally induced longitudinal currents.
Using the unique Intersil dielectric isolation process, the
SLIC can operate directly with a wide range of station
battery voltages.
The SLIC also provides selective denial of power. If the PBX
system becomes overloaded during an emergency, the SLIC
will provide system protection by denying power to selected
subscriber loops.
The Intersil SLIC is ideally suited for the design of new digital
PBX systems, by eliminating bulky hybrid transformers.
Features
Capable of 12V or 5V (V
B
+) Operation
Monolithic Integrated Device
DI High Voltage Process
Compatible With Worldwide PBX Performance
Requirements
Controlled Supply of Battery Feed Current for Short Loops
(30mA)
Internal Ring Relay Driver
Low Power Consumption During Standby
Switch Hook, Ground Key and Ring Trip Detection
Functions
Selective Denial of Power to Subscriber Loops
Applications
Solid State Line Interface Circuit for Analog and Digital PBX
Systems
Direct Inward Dial (DID) Trunks
Voice Messaging PBXs
Related Literature
- AN549, The HC-5502S/4X Telephone Subscriber Line
Interface Circuits (SLIC)
- AN571, Using Ring Sync with HC-5502A and HC-5504
SLICs
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
PKG. NO.
HC1-5502B-5
0 to 75
24 Ld CERDIP
F24.6
HC1-5502B-9
-40 to 85
24 Ld CERDIP
F24.6
HC3-5502B-5
0 to 75
24 Ld PDIP
E24.6
HC4P5502B-5
0 to 75
28 Ld PLCC
N28.45
HC9P5502B-5
0 to 75
24 Ld SOIC
M24.3
Pinouts
HC-5502B
(PDIP, CERDIP, SOIC)
TOP VIEW
HC-5502B
(PLCC)
TOP VIEW
1
2
3
4
5
6
7
8
9
10
11
12
16
17
18
19
20
21
22
23
24
15
14
13
TIP
RING
C1*
C3
DG
RS
TF
RF
V
B
-
BG
TX
C4
+IN
C2
AG
OUT
V
B
+
-IN
RC
PD
GKD
SHD
RD
R
X
RX
+IN
N/C
OUT
C2
RC
R
T
T
A
C
OPTIONAL
-IN
R
B
N
S
G
P
B
V
N
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
V
B
-
C1
C3
DG
N/C
RS
RD
TF
Data Sheet
February 1999