Silverstone OP750 SST-OP750 User Manual

 

 

5

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 (T

vout_on

) of each other during turn on of the power supply. Each output voltage 

shall fall out of regulation within 400 mS (T

vout_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.     

T

v

out_rise

 

 Output voltage rise time from each main output.(+5Vsb < 
70mS) 

5 

70 mS 

T

vout_on

 

 All main output must be within regulation of each other 
within this time. 

 50 

mS 

T

vout_off

 

All main output must leave regulation within this time 

 

400 

mS 

 
 
                    Vout 
 
 
 
                      V1     

10% Vout

 

                               

                      V2 
 
                      V3 
 
                      V4 
 
 
                                                             

T

vout_on

                                                   

T

vout_off

                               

                               

T

v

out_rise