THDT6511D Datasheet, PDF (5/6 Pages) STMicroelectronics – TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTION

TYPICAL APPLICATION
RING
GENERATOR
THDT6511D
LINE A
T
E
S
T
R
E
L
A
Y
LINE B
PTC
PTC
THBT200S
RING
RELAY
-V
bat
TIP
Integrated
SLIC
THDT6511D ^RING
Line A
D1
Line B
Tip
P1
- For positive surges versus GND (TIP), diode D₁
will conduct.
- For negative surges versus GND (TIP),
protectiondevice P1 will trigger at maximum
voltage equal to V_BO.
Ring
5/6