HC-5502B_03 Datasheet, PDF (8/11 Pages) Intersil Corporation – EIA/ITU PABX SLIC with 30mA Loop Feed

HC-5502B
Logic Diagram
HC-5502B LOGIC GATE SCHEMATIC
C2
GK
1
2
LOGIC BIAS
DELAY
3
6
8
4
5
7
9
12
SH
16
10
13
11
1155
TTL
TO
STTL
TTL
TO
STTL
TTL
TO
STTL
TO
R₂₁
RS
RC
PD
RELAY
14
DRIVER
A
B
C
SCHOTTKY LOGIC
STTL
TO
C
TTL
B
A
STTL
TO
TTL
RD
SHD
GKD
Overvoltage 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 30mARMS, 15mARMS per leg, without any
performance degradation.
PARAMETER
Longitudinal
Surge
Metallic Surge
T/GND
R/GND
50/60Hz Current
T/GND
R/GND
TABLE 1.
TEST
PERFORMANCE
CONDITION
(MAX)
10µs Rise/
±1000 (Plastic)
1000µs Fall ±500 (Ceramic)
10µs Rise/
±1000 (Plastic)
1000µs Fall ±500 (Ceramic)
10µs Rise/
±1000 (Plastic)
1000µs Fall ±500 (Ceramic)
11 Cycles
Limited to
10A_RMS
700 (Plastic)
350 (Ceramic)
UNITS
V_PEAK
V_PEAK
V_PEAK
V_PEAK
V_PEAK
V_PEAK
V_RMS
V_RMS
8