Intel S5000XAL manual MIN MAX Units

Intel® Server Board S5000PAL / S5000XAL TPS Power and Environmental Specifications

Table 43. Turn On/Off Timing

	Item	Description	MIN	MAX	UNITS
Tsb_on_delay		Delay from AC being applied to 5VSB being within regulation.		1500	msec
Tac_on_delay		Delay from AC being applied to all output voltages being within		2500	msec
		regulation.
Tvout_holdup		Time all output voltages stay within regulation after loss of AC.	21		msec
		Measured at 60% of maximum load.
Tpwok_holdup		Delay from loss of AC to de-assertion of PWOK. Measured at	20		msec
		60% of maximum load.
Tpson_on_delay		Delay from PSON# active to output voltages within regulation	5	400	msec
		limits.
Tpson_pwok		Delay from PSON# de-active to PWOK being de-asserted.		50	msec
Tpwok_on		Delay from output voltages within regulation limits to PWOK	100	500	msec
		asserted at turn on.
Tpwok_off		Delay from PWOK de-asserted to output voltages (3.3V, 5V,	1		msec
		12V, -12V) dropping out of regulation limits.
Tpwok_low		Duration of PWOK being in the de-asserted state during an	100		msec
		off/on cycle using AC or the PSON signal.
Tsb_vout		Delay from 5VSB being in regulation to O/Ps being in	50	1000	msec
		regulation at AC turn on.
T5VSB_holdup		Time the 5VSB output voltage stays within regulation after loss	70		msec
		of AC.
	AC Input

Tvout_holdup

V out

T		Tpwok_low
	AC_on_delay

Tsb_on_delay		Tpwok_on		Tpwok_off	Tsb_on_delay	Tpwok_on
PWOK		Tpwok_holdup
5 VSB	Tsb_vout		T5VSB_holdup

Tpwok_off

Tpson_pwok

PSON Tpson_on_delay

AC turn on/off cycle PSON turn on/off cycle

TP02314

Figure 27. Turn On/Off Timing (Power Supply Signals)

Revision 1.4	77
	Intel order number: D31979-007