HRPG-300-3.3 Datasheet, PDF (3/4 Pages) Mean Well Enterprises Co., Ltd. – 300W Single Output with PFC Function

300W Single Output with PFC Function
HRPG-300 series
Function Description of CN100
Pin No. Function Description
1
AUX
Auxiliary voltage output, 4.6~5.25V, reference to pin 2(AUXG). The maximum load current is 0.3A. This output has the built-in oring
diodes and is not controlled by the "remote ON/OFF control".
2 AUXG Auxiliary voltage output ground. The signal return is isolated from the output terminals (+V & -V).
3 DC-OK DC-OK signal is a TTL level signal, referenced to pin5(DC-OK GND). High when PSU turns on.
4
RC- Remote control ground.
5
GND This pin connects to the negative terminal(-V). Return for DC-OK signal output.
6
RC+ Turns the output on and off by electrical or dry contact between pin 4 (RC-), Short: Power OFF, Open: Power ON.
7
+S
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.
8
-S
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.
Function Manual
1.Remote Sense
The remote sensing compensates voltage drop on the
load wiring up to 0.5V.
1 2 3 4 5 6 7 ^CN100
17
28
-S LOAD +S
(Pin8)
-
(Pin7)
+
Sense lines should
be twisted in pairs
Fig 1.1
2.DC-OK Signal
DC-OK signal is a TTL level signal. High when PSU turns on.
Between DC-OK(pin6) and GND(pin4) Output Status
3.3 ~ 5.6V
ON
0 ~ 1V
OFF
CN100
1 AUX DC-OK GND +S 7
2 AUXG RC- RC+ -S 8
1 2 3 4 5 6 7 ^CN100
17
28
Fig 2.1
CN100
1 AUX DC-OK GND +S 7
2 AUXG RC- RC+ -S 8
File Name:HRPG-300-SPEC 2009-11-09