2.5 Remote ON/OFF (Excluding 1R5)
¡
You can turn the power supply ON or OFF without turning the in-
put power ON or OFF through the pin terminal RC.
(1) SU/SUC3 and SU/SUC6
¡
The output of the power supply turns ON when the pin terminal
RC is connected to the pin terminal -Vin. When the voltage of the
pin terminal RC is between 2.0 to 9.0V, the output of the power
supply goes OFF.
¡
When the voltage of the pin terminal RC is between 0.3 to 2.0V,
the output voltage value may be an uncertain value which is less
than the rated voltage.
¡
Please see the following diagram for how to use the pin terminal
RC.
¡
Please keep the voltage level of the pin terminal RC (V
RC
) at 9.0V
or below.
¡
If you do not use the Remote ON/OFF function, please short out
between the pin terminals RC and -Vin to prevent malfunction.
(2) SU/SUC10
¡
The output of the power supply turns ON when the pin terminal
RC is connected to the pin terminal -Vin. When the pin terminal
RC is open or the voltage of the pin terminal RC is between 2.4 to
7.0 V, the output of the power supply goes OFF.
¡
When the voltage of the pin terminal RC is between 1.2 to 2.4V,
an output voltage value may be an uncertain value which is less
than the rated voltage.
¡
Please see the following diagram for how to use the pin terminal
RC.
¡
When the pin terminal RC is at the ”Low” level, outflowing current
is 0.5mA typ. When Vcc is used, please make sure that the volt-
age of Vcc is 7.0V or less.
¡
If you do not use the Remote ON/OFF function, please short out
between the pin terminals RC and -Vin.
On-board type
Instruction Manual
G-38
SU.SUC
On-board type
Instruction Manual
G-39
SU.SUC
Table 2.1 List of External Devices
Fig.2.2 Connecting External Devices
Fig.2.3 Internal Circuits of Remote ON/OFF
Table 2.2 Specification of Remote ON/OFF
Voltage Level of the pin terminal RC (V
RC
) SU/SUC3,
SU/SUC6 Output
Open or Short or 0V
[
V
RC
[
0.3V
ON
2.0V
[
V
RC
[
9.0V
OFF
Table 2.3 Specification of Remote ON/OFF
Voltage Level of the pin terminal RC (V
RC
)
SU/SUC10 Output
Short or 0V
[
V
RC
[
1.2V
ON
Open or 2.4V
[
V
RC
[
7.0V
OFF
Fig.2.4 Examples of Using an External Remote ON/OFF Circuit
R2
External Resistor
External VR
R1
External Resistor
Output
TRM
-Vout
+Vout
3
1
2
Load
Item # Output Voltage
Constant of External Device [
W
]
(Adjustable within
�
5%)
VR
R1
R2
1
3.3V
1K
100
100
2
5V
1K
100
270
3
12V
5K
10K
1.2K
4
15V
5K
10K
470
5
�
12V
5K
18K
470
6
�
15V
5K
18K
470
-Vin
+Vin
RC
2.2K
47K
External
Circuit
Control
Circuit
Fig.2.5 Examples of Using an External Remote ON/OFF Circuit
or
Relay
or
Transistor
IC
-Vin
Vcc
RC
-Vin
+Vin
RC
-Vin
+Vin
RC
-Vin
+Vin
RC
Input 5V
Input 12V
Input 24, 48V
