PRELIMINARY
I
NTEGRATED
C
IRCUITS
D
IVISION
CPC75282
R00E PRELIMINARY 7
1.7.3 Ringing Switch, SW4
Parameter Test Conditions Symbol Minimum Typical Maximum Unit
Off-State
Leakage Current
V
SW4
(differential) = R
LINE
to R
RINGING
All-Off state.
+25qC
V
SW
(differential) = -255V to +210V
V
SW
(differential) = +255V to -210V
I
SW
-
-
1 PA
+85q C
V
SW
(differential) = -270V to +210V
V
SW
(differential) = +270V to -210V
-
-40q C
V
SW
(differential) = -245V to +210V
V
SW
(differential) = +245V to -210V
-
On Resistance
I
SW
(on) = ±70mA, ±80mA R
ON
-1015:
On Voltage
I
SW
(on) = ±1mA V
ON
--3V
On-State
Leakage Current
Inputs set for ringing -Measure ringing
generator current to ground.
I
RINGING
-2-mA
Steady-State Current
1
Inputs set for ringing mode.
I
SW
- - 150 mA
Surge Current
1
Ringing switches on, all other switches
off. Apply ±1kV 10x1000 Ps pulse with
appropriate protection in place.
I
SW
--2A
Release Current SW4 transition from on to off.
I
RINGING
- 300 1000 PA
Logic input to switch
output isolation
+25qC, OFF
x
= 0,
V
SW
(R
RINGING
, R
LINE
) = ±320V
I
SW
-
-
1 PA
+85qC, OFF
x
= 0,
V
SW
(R
RINGING
, R
LINE
) = ±330V
-
-40qC, OFF
x
= 0,
V
SW
(R
RINGING
, R
LINE
) = ±310V
-
Transient Immunity
2
- dV/dt 1500 2100 - V/Ps
1
This parameter is not tested in production. Choice of secondary protector should ensure this rating is not exceeded.
2
Applied voltage is 100V
P-P
square wave at 100Hz.
