User manual

P1
step down conv. W-78 adj.
AC
AC
+
ENA
+
Uout
Uin
+
P1
step down conv. W-78 adj.
AC
AC
+
ENA
+
Uout
Uin
+
P1
step down conv. W-78 adj.
AC
AC
+
ENA
+
Uout
Uin
+
P1
step down conv. W-78 adj.
AC
AC
+
ENA
+
Uout
Uin
+
Different DC-Input applications:Different DC-Input applications:
P1
step down conv. W-78 adj.
AC
AC
+
ENA
ENA (normaly open)
P1
step down conv. W-78 adj.
AC
AC
+
ENA
Uin
+Uout
- Uout
D1
MBR 340
Backup
A danger situation is given in systems where
the output will be held high when the input to
the W 78-ADJ is absent.
This may occur in battery charging applications
or in battery backup systems.
Add a blocking diode (D1) to +Uout if current
can flow backwards into the output, this can
damage the W 78-ADJ!
ENA: Different enable / disable shutdown applications:ENA: Different enable / disable shutdown applications:
Reversed output protection:Reversed output protection:
Switch closed = shutdown
(Internal connected to minus Uout)
AJUSTABLE STEP-DOWN CONVERTER 1 Amp, WIDE INPUT RANGE
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