Ultralow Noise, Ultracompact, Isolated type DC-DC Converter
b
1.5Watt BLA05 Series
7. Various functions
7-1 ON/OFF control
The ON/OFF control function enables users to control ON/OFF of the output voltage without
inputting or cutting it off.
Between –Vin terminal (No. 2 pin) and ON/OFF terminal (No. 3 pin)
Open (2V max.)
: Output ON
Short (0 to 0.3V 4mA max.): Output OFF
+Vin
1
3
ON/OFF
or
2
-Vin
7-2 Output over current protection
If output current has become an over current status, output voltage is lowered and the over current
protection circuit is activated. (Over current protection circuit actuating current: 105% or above of the
rated load current.)
The converter automatically returns to normal operation as soon as the over current status is
resolved. Holding of the over current status for over 30 seconds may result in damage, so resolve
the over current status within 30 seconds.
Also, if the converter does not return to normal operation automatically even if the over current status
has been resolved, turn off the power once or turn the output OFF with an ON/OFF control and
reactivate.
Characteristics in the over current mode
100
Note) A drooping characteristic may be seen
in
the
over
current
protection
characteristics as shown on the left. Note
that output voltage may not come up upon
the activation if connected to a nonlinear
load such as a lamp, motor, etc., or a
constant current load.
50
0
0
50
100
Output Current[%]
7
DC-DC Converter
BDD20170524_C01
BELLNIX [ Bellnix ]
