Technical Product Specification

Intel
®
Server Board S5500BC TPS Power and Environmental Specifications
Revision 1.8 Intel order number: E42249-009 111
Table 71. Output Voltage Timing
Item
Description
Minimum
Maximum
Units
T
vout_rise
Output voltage rise time from each main output.
5.0 *
70 *
msec
T
vout_on
All main outputs must be within regulation of each other
within this time.
50
msec
T
vout_off
All main outputs must leave regulation within this time.
400
msec
*The 5 VSB output voltage rise time shall be from 1.0 ms to 25.0 ms
Figure 46. Output Voltage Timing
Table 72. Turn On/Off Timing
Item
Description
Minimum
Maximum
Units
T
sb_on_delay
Delay from AC applied to 5VSB within regulation.
1500
ms
T
ac_on_delay
Delay from AC applied to all output voltages within regulation.
2500
ms
T
vout_holdup
Time all output voltages stay within regulation after loss of
AC. Measured at 75% of maximum load.
21
ms
T
pwok_holdup
Delay from loss of AC to de-assertion of PWOK. Measured at
75% of maximum load.
20
ms
T
pson_on_delay
Delay from PSOn
#
active to output voltages within regulation
limits.
5
400
ms
T
pson_pwok
Delay from PSOn
#
deactive to PWOK being de-asserted.
50
ms