User's Manual l STK-MBa53 UM 100 l © 2013 TQ-Group
Page 19
Over a protective circuit the voltage V
IN
is directly used as a system voltage VCC12V.
The protective circuit (Illustration 13) has the following characteristics:
•
Surge protection by a SMBJ12C diode
•
Inverse-polarity protection by MOSFET
•
Overcurrent protection by fuse
6
Illustration 13: Protective circuit for VIN / VCC12V
Table 20:
Electrical parameters of the protective circuit
Parameter
Min.
Typ.
Max.
Unit
Overcurrent limitation by fuse
–
3.5
–
A
Overvoltage limitation by diode SMBJ12C
–
15
–
V
Table 21 shows the electrical parameters of the power supply over V
IN
.
The necessary wall-plug unit has to be selected accordingly.
Table 21:
Electrical parameters VIN / VCC12V
Parameter
Min.
Typ.
Max.
Unit
Output voltage (VCC12V)
11.4
12
12.6
V
Power consumption
tbd
tbd
42
W
6
See (5), data sheet Belfuse SSQ 1.5.
