Silverstone OP850 SST-OP850 User Manual
Product codes
SST-OP850
02
Output Voltag
Max. Load
Min. Load
Max. Combined
Total Output
+5V
30A
1.0A
+3.3V
28A
0A
830W
+12V
70A
3A
70A
-12V
0.5A
0A
6W
+5VSB
4A
0.1A
20W
180W
Output Voltage
Load Reg.
Line Reg.
Ripple & Noise
+5V
+/-3%
±1%
50mV
+3.3V
+/-3%
±1%
50mV
+12V
+/-3%
±1%
120mV
-12V
+/-10%
±1%
120mV
+5VSB
+/-5%
±1%
50mV
OLYMPIA OP850
3. DC Output Specification
3-1. Output Current / Loading
The following tables define two power and current rating. The power supply shall meet
both static and dynamic voltage regulation requirements for minimum load condition.
both static and dynamic voltage regulation requirements for minimum load condition.
Table 5 - Output Loads Range 1
：
Note
：Maximum continuous total DC output power should not exceed 850 W.
3-2. DC Voltage Regulation, Ripple and Noise
The power supply output voltages must stay within the following voltage limits when
operating at steady state and dynamic loading conditions. All outputs are measured with
reference to the return remote sense (ReturnS) signal. The +5V,+3.3V, +12V, -12V and
+5VSB outputs are measure at the power supply connectors references to ReturnS. The
+5V and +3.3V is measured at its remote sense signal (+5VS, +3.3VS) located at the
signal connector.
operating at steady state and dynamic loading conditions. All outputs are measured with
reference to the return remote sense (ReturnS) signal. The +5V,+3.3V, +12V, -12V and
+5VSB outputs are measure at the power supply connectors references to ReturnS. The
+5V and +3.3V is measured at its remote sense signal (+5VS, +3.3VS) located at the
signal connector.
Table 7 - Regulation, ripple and noise.
Ripple and Noise shall be measured using the following methods:
a) Measurements made differentially to eliminate common-mode noise
b) Ground lead length of oscilloscope probe shall be
b) Ground lead length of oscilloscope probe shall be
0.25 inch.
c) Measurements made where the cable connectors attach to the load.
d) Outputs bypassed at the point of measurement with a parallel combination of 10uF
d) Outputs bypassed at the point of measurement with a parallel combination of 10uF
tantalum capacitor in parallel with a 0.1uF ceramic capacitors.
e) Oscilloscope bandwidth of 0 Hz to 20MHz.
f ) Measurements measured at locations where remote sense wires are connected.
g) Regulation tolerance shall include temperature change, warm up drift and dynamic
f ) Measurements measured at locations where remote sense wires are connected.
g) Regulation tolerance shall include temperature change, warm up drift and dynamic
load
3-3. Timing Requirements
These are the timing requirements for the power assembly operation. The output
voltages must rise from 10% to within regulation limits (Tvout_rise) within 5 to 70mS. The
+5V, +3.3V and +12V output voltages should start to rise at about the same time. All
outputs must rise monotonically. The +5V output needs to be greater than the +3.3V
output during any point of the voltage rise. The +5V output must never be greater than
the +3.3V output by more than 2.25V. Each output voltage shall reach regulation within
50 mS (Tvout_on) of each other during turn on of the power supply. Each output voltage
shall fall out of regulation within 400 mS (Tvout_off) of each other during turn off. Figure 1
and figure 2 show the turn On and turn Off timing requirement. In Figure 2, the timing is
shown with both AC and PSON# controlling the On/Off of the power supply.
voltages must rise from 10% to within regulation limits (Tvout_rise) within 5 to 70mS. The
+5V, +3.3V and +12V output voltages should start to rise at about the same time. All
outputs must rise monotonically. The +5V output needs to be greater than the +3.3V
output during any point of the voltage rise. The +5V output must never be greater than
the +3.3V output by more than 2.25V. Each output voltage shall reach regulation within
50 mS (Tvout_on) of each other during turn on of the power supply. Each output voltage
shall fall out of regulation within 400 mS (Tvout_off) of each other during turn off. Figure 1
and figure 2 show the turn On and turn Off timing requirement. In Figure 2, the timing is
shown with both AC and PSON# controlling the On/Off of the power supply.
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