Datasheet

1.Remote ON/OFF
(1)Remote ON/OFF control becomes available by applying voltage in CN3
(2)Table 1.1 shows the specification of Remote ON/OFF function
(3)Fig.1.2 shows the example to connect Remote ON/OFF control function
Table 1.1 Specification of Remote ON/OFF
Fig.1.2 Examples of connecting remote ON/OFF
Connection Method
Output on SW Open
Fig. 1.2(A)
Output off
SW Close
1KΩ
RCG
RC
SW
5V
1KΩ
RC
V
RCG
(A)Using external voltage source (B)Using external voltage source
2.Output OK signal
"Output OK" is an open collector signal.
It indicates the output status of the PSU. It can operate
in two ways : One is sinking current from external signal ;
the other is sending out a voltage signal.
2-1 Sink current :
The maximum sink current is 10mA and the maximum
external voltage is 13V.
2-2 Voltage signal :
Between O/P OK(pin3) and GND(pin4)
0 ~ 0.5V
12 ~ 13V
Output Status
ON
OFF
V=0~0.8Vdc
V=4~10Vdc
Fig. 1.2(B)
Function Description of CN3
Function Manual
Pin No. Function
Description
1
3
5
6
4
2
+S
O/P OK
RC
RCG
GND
-S
Open collector signal, reference to pin4(GND). Low when PSU turns on. The maximum sink current is 10mA and the maximum
external voltage is 13V.
Remote ON/OFF
Remote ON/OFF ground
These pins connect to the negative terminal (-V).
Negative sensing. The -S signal should be connected to the negative terminal of the load. The -S and +S leads should be twisted in pair to
minimize noise pick-up effect. The maximum line drop compensation is 0.5V.
Positive sensing. The +S signal should be connected to the positive terminal of the load. The +S and -S leads should be twisted in pair to
minimize noise pick-up effect. The maximum line drop compensation is 0.5V.
500W Single Output DC-DC Converter
SD-500 series
File Name:SD-500-SPEC 2013-12-17
+S
1
-S
2
O/P OK RC
GND RCG
CN3
5
6
+V ADJ.
+Vo +Vo -Vo -Vo TB1
CN3
1 5
2 6