Intel SC5650BCDP User Manual

Page of 71
Intel
®
 Server System SC5650BCDP TPS 
Power Sub-System 
 
Revision 1.5 
Intel order number: E80367-002 
25
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 9. Output Voltage Timing 
 
Table 24. Turn On / Off Timing 
Item 
Description 
Minimum 
Maximum 
Units 
T
sb_on_delay
 
Delay from AC being applied to 5VSB being within 
regulation. 
 1500 
msec 
T
ac_on_delay
 
Delay from AC being applied to all output voltages being 
within regulation. 
 2500 
msec 
T
vout_holdup
 
Time all output voltages stay within regulation after loss of 
AC. 
21  
msec 
T
pwok_holdup
 
Delay from loss of AC to de-assertion of PWOK. 
20 
 
msec 
T
pson_on_delay
 
Delay from PSON
#
 active to output voltages within regulation 
limits. 
5 400 
msec 
T
pson_pwok
 
Delay from PSON
#
 deactive to PWOK being de-asserted. 
 
50 
msec 
T
pwok_on
 
Delay from output voltages within regulation limits to PWOK 
asserted at turn on. 
100 1000 
msec 
T
pwok_off
 
Delay from PWOK de-asserted to output voltages (3.3V, 5V, 
12V, -12V) dropping out of regulation limits. 
1 200 
msec 
T
pwok_low
 
Duration of PWOK being in the de-asserted state during an 
off/on cycle using AC or the PSON signal. 
100  
msec 
T
sb_vout
 
Delay from 5VSB being in regulation to O/Ps being in 
regulation at AC turn on. 
50 1000 
msec 
T
5VSB_holdup
 
Time the 5VSB output voltage stays within regulation after 
loss of AC. 
70  
msec 
 
Vout 
10% 
Vout 
T
vout rise
T
vout_on
 
T
vout_off
 
V1 
V2 
V3 
V4