HC-5524 Datasheet, PDF (8/9 Pages) Intersil Corporation – EIA/ITU 24V PABX SLIC with 25mA Loop Feed

Logic Diagram
RS
TTL TO I²L
TTL TO I²L
F0
GK
TTL TO I²L
F1
PD
SH
THERMAL
SHUTDOWN
LATCH
TTL TO I²L
TEST
HC-5524
RELAY
DRIVER
RD
THERMAL
SHUT DOWN
I²L TO TTL
GKD
I²L TO TTL
SHD
I²L TO TTL
ALM
TO BIAS
NETWORK
INJ
A
A
B
B
C
C
KEY
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 maxi-
mum or 40mA_RMS, 20mA_RMS per leg, without any perfor-
mance 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
10µs Rise/
±1000 (Plastic)
1000µs Fall
10µs Rise/
±1000 (Plastic)
1000µs Fall
11 Cycles
Limited to
10A_RMS
700 (Plastic)
UNITS
V_PEAK
V_PEAK
V_PEAK
V_RMS
8