®
HC-5504B
Data Sheet
July 2004
FN2886.8
EIA/ITU PABX SLIC with 40mA 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
• Pin for Pin Replacement for the HC-5504
• Capable of 5V or 12V (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
(41mA)
• Internal Ring Relay Driver
• Allows Interfacing With Negative Superimposed Ringing
Systems
• Low Power Consumption During Standby
• Switch Hook Ground Key and Ring Trip Detection
Functions
• Selective Denial of Power to Subscriber Loops
Ordering Information
PART NUMBER
HC9P5504B-5
HC9P5504B-5Z (Note)
HC9P5504B-5ZX96
(Note)
TEMP.
RANGE (°C)
0 to 75
0 to 75
0 to 75
PACKAGE
24 Ld SOIC
PKG.
DWG. #
M24.3
• Pb-free Available
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
24 Ld SOIC (Pb-free) M24.3
24 Ld SOIC (Pb-free) M24.3
Tape and Reel
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which is compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J Std-020B.
Pinout
HC-5504B (SOIC)
TOP VIEW
TIP
RING
RFS
V
B
+
C
3
DG
RS
RD
TF
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
14
13
TX
AG
C
4
R
X
+IN
-IN
OUT
C
2
RC
PD
GKD
SHD
RF 10
V
B
-
11
BG 12
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003, 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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