HC-5504B1_03 Datasheet, PDF (8/10 Pages) Intersil Corporation – ITU Low Cost, PABX SLIC With 40mA Loop Feed

HC-5504B1
Schematic (Continued)
LOGIC GATE SCHEMATIC
C₂
GK
1
2
SH
16
LOGIC BIAS
6
4
5
7
10
DELAY
3
8
9
12
11
15
TTL
TO
STTL
TTL
TO
STTL
TTL
TO
STTL
TO
R₂₁
RS
RC
PD
13
14
RELAY
DRIVER
A
B
C
SCHOTTKY LOGIC
STTL
STTL
C
TO
TO
TTL
TTL
B
A
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 30mA_RMS, 15mA_RMS per leg, without any
performance degradation.
TABLE 1.
PARAMETER
TEST
PERFORMANCE
CONDITION
(MAX)
UNITS
Longitudinal
Surge
10µs Rise/
1000µs Fall
±1000 (Plastic)
V_PEAK
Metallic Surge
10µs Rise/
1000µs Fall
±1000 (Plastic)
V_PEAK
T/GND
R/GND
10µs Rise/
1000µs Fall
±1000 (Plastic)
V_PEAK
50/60Hz Current 11 Cycles
T/GND
Limited to
R/GND
10A_RMS
700 (Plastic)
V_RMS
8