|
Power Input Range
The
DPS250AB-44A PSU could operate at wide input voltages defined in
below table.
|
Range |
Input |
Min. |
Nom. |
Max. |
|
Low Range |
V-in (Wrms) / I-in (Arms) |
90 / --- |
100-127 / 3.5 |
135 / --- |
|
High Range |
V-in (Wrms) / I-in (Arms) |
180 / --- |
200-240 / 2 |
264 / --- |
|
Frequency (Hz) |
47 |
--- |
63 |
*
Inrush current : No component was damaged and input fuse
shall not blow.
* Input
Fuse Requirement : The PSU shall be protected from primary over
current by input fuse.
* Power
factor correction greater than 0.9 at full loading.
DC Output Voltage
Regulation
The DC output
voltages of DPS250AB-44A PSU measured at the end of the
connectors should be remained within the regulation ranges shown
in below table.
|
DC Output |
Min. |
Nom. |
Max. |
Tolerance |
|
+5V (Volts) |
+4.75 |
+5.00 |
+5.25 |
+5%, -5% |
|
+12V (Volts) |
+11.4 |
+12.00 |
+12.60 |
+5%, -5% |
|
-12V
(Volts) |
-10.8 |
-12.00 |
-13.20 |
+10%, -10% |
|
+5Vsb
(Volts) |
+4.75 |
+5.00 |
+5.25 |
+5%, -5% |
|
+3.3V
(Volts) |
+3.135 |
+3.30 |
+3.465 |
+5%, -5% |
DC Output Load
Current Ranges
The DC output
load current is specified as shown in below table. The maximum
continuous output power at steady state operating should be
limited at watts. The +5Vsb output should be remained within the
regulation limits during the DC fault condition.
|
DC O/P Load |
Min. (A) |
Nom. (A) |
Max. (A) |
Peak (A) |
|
+5V (Volts) |
1 |
6 |
12 |
|
|
+12V (Volts) |
1 |
9 |
17 |
22 |
|
-12V
(Volts) |
0 |
0.25 |
0.5 |
|
|
+5Vsb
(Volts) |
0 |
1 |
2 |
|
|
+3.3V
(Volts) |
0 |
3 |
6 |
|
Max. Combined DC
Output
Max
continuous DC output power should not exceed 250W at 25°C
and de-rating power 1.6W/°C from 25°C to 50°C to get a maximum
continuous power de-rating to 210W at 50°C each output
maximum load de-crease in proportion. The total combined 3.3V,
5V power should not exceed 60W steady state. The total
combined 3.3V, 5V, 12V and -12V power should not exceed 240W.
The total peak power should not exceed 300W. The surge
duration should be less than 20ms.
|
DC Output |
Combined
Max. Power |
Peak
Max. Power |
|
+3.3V
(Volts) |
250W |
240W |
60W |
300W |
|
+5V (Volts) |
|
+12V (Volts) |
|
|
-12V
(Volts) |
|
+5Vsb
(Volts) |
|
Ripple & Noise
Specification
|
|
+5V |
+12V |
-12V |
+5Vsb |
+3.3V |
|
Ripple & Noise |
50mV |
120mV |
120mV |
50mV |
50mV |
(1)
Ripple & noise test by the oscilloscope bandwidth are
setting at 20MHz.
(2) Add a
0.1µF ceramic disk capacitor in parallel with a 10µF
electrolytic capacitor at output connector terminals for ripple
& noise measurements. If ambient temperature is under 20°C or
over 30°C, the AC input should be nominal input.
Efficiency
The
efficiency of the power supply during normal operating should be
in below table at 115Vac/230Vac line input voltage.
|
Efficiency |
+12V |
+5V |
+3.3V |
-12V |
+5Vsb |
% of Full Load |
|
> 82% |
3.04A |
1.61A |
0.81A |
0.09A |
0.36A |
20% |
|
> 85% |
7.59A |
4.03A |
2.01A |
0.22A |
0.89A |
50% |
|
> 82% |
15.18A |
8.06A |
4.03A |
0.446A |
1.786A |
100% |
Standby Efficiency
At 115Vac,
while in standby mode with a 100mA load on the +5Vsb DC output,
the PSU should draw less than 1 watt of true input power.
Over Voltage Protection
+5V, +3.3V
and +12V output of PSU should be protected from over voltage as
below table..
|
DC Output |
+12V |
+5V |
+3.3V |
|
Max. |
15.6V |
7V |
4.8V |
Environmental
Requirement
Operating
Temperature : 0 to 50°C.
Storage
Temperature : -40 to 70°C.
Operating
Humidity : 20 to 85% related humidity (non-condensing).
Non-Operating
Humidity : 10 to 95% related humidity (non-condensing).
Electromagnetic
Compatibility and Safety Requirements
Conducted EMI
: CE, BSMI, FCC, CISPR 22 class B.
Safety :
UL+CUL, TUV EN60950-1, CB, CCC, CE, BSMI.
Reliability
MTBF : >
100,000 hours under 100% loading / 25°C.
Dimension
Body : 81.5 x
40.5 x 150 mm (W x H x D) |
