Document
HC-5502B
Data Sheet February 1999 File Number
2884.5
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 (VB+) 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
Ordering Information
PART NUMBER HC1-5502B-5 HC1-5502B-9 HC3-5502B-5 HC4P5502B-5 HC9P5502B-5 TEMP. RANGE (oC) 0 to 75 -40 to 85 0 to 75 0 to 75 0 to 75 PACKAGE 24 Ld CERDIP 24 Ld CERDIP 24 Ld PDIP 28 Ld PLCC 24 Ld SOIC PKG. NO. F24.6 F24.6 E24.6 N28.45 M24.3
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
HC-5502B (PLCC) TOP VIEW
VB+ RING N/C TIP AG TX C4
Pinouts
HC-5502B (PDIP, CERDIP, SOIC) TOP VIEW
TIP RING VB + C1* C3 DG RS RD TF
1 2 3 4 5 6 7 8 9
24 TX 23 AG 22 C4 21 RX 20 +IN 19 -IN 18 OUT 17 C2 16 RC 15 PD 14 GKD 13 SHD C1† C3 DG N/C RS 5 6 7 8 9
4
3
2
1
28
27 26
25 RX 24 +IN 23 -IN 22 N/C 21 OUT 20 C2 19 RC
RD 10 TF 11
RF 10 VB- 11 BG 12
12 RF
13 VB -
14 15 BG N/C
16 SHD
17 GKD
18 PD
† OPTIONAL
47
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
Absolute Maximum Ratings (Note 1)
Supply Voltage (VB-) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -60 to 0.5V (VB+) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to 15V (VB+ - VB-) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75V Relay Drive Voltage (VRD) . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to 15V
Thermal Information
Thermal Resistance (Typical, Note 2) θJA (oC/W) CERDIP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 52 PDIP Package . . . . . .