TISP6NTP2C High Voltage Ringing SLIC Protector
APPLICATIONS INFORMATION
CURRENT
SINK
-ve
SLIC
PROTECTOR
R
S1
+t°
0
+t°
-ve
+t°
R
R
CURRENT
SINK
SLIC 1
0
+t°
-ve
+t°
R
CURRENT
SINK
R
S2
V
BATH
0
+t°
-ve
+t°
0
+t°
R
CURRENT
SINK
ISDN
POWER
SUPPLY
NEGATIVE
SUPPLY
0V
TISP6NTP2C
R
S3
SLIC 2
I
K
R
S4
C
G
100 nF
AI6XBNB
0V
TISP6NTP2C
AI6XDJA
Resistor "R" may be needed if sink has internal clamp diode
Figure 2. SLIC Protection
Figure 3. Protection of Four ISDN Power Feeds
0V
0V
0V
I
CB
B (G)
K
I
EB
I
GKS
1/4
T ISP
V
BATH
+ V
FRM
I
CB
I
R
A
I
D
I
D(I)
K
B (G)
V
(BO)
1/4
T
ISP
6NTP2C
6NTP2C
AI6XCEB
AI6XCFB
I
D(I)
is the internal SCR value of I
D
Figure 4. Transistor CB and EB Verification
Figure 5. Off-State Current Verification
MARCH 2002 – REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
