Overpower And Short Circuit Protection; Fig. 15: Short Circuit Protection - Alcatel MTK-40131 Datasheet And User Manual

Overpower and Short Circuit
Protection
In power down, the DC-loop current lim-
itation is not active. The line current is
limited directly through the line
drivers.

Fig. 15: Short circuit protection

The AW and BW outputs are fully pro-
tected against short circuits to a voltage
between GNDA/GNDB and BATR (see
fig. 15).
GNDB
AW
BATR
GNDB Vaw
BW
Vbw
BATR
GNDB
37
MTK-40131
RS1=RS2 ≥ 0.3Ω
RS1
RS2
- -
+ +
Vsb Vsa