Intel SE7221BK1-E manual Output Voltage Timing Turn On/Off Timing

SE7221BK1-ETechnical Product Specification

Vout

10% Vout

V1

V2

V3

V4

Tvout_rise Tvout_off

Tvout_on

Figure 8. Output Voltage Timing

Table 81. Turn On/Off Timing

Item	Description	MIN	MAX	UNITS
Tsb_on_delay	Delay from AC being applied to 5VSB being within		1500	msec
	regulation.
T ac_on_delay	Delay from AC being applied to all output voltages		2500	msec
	being within regulation.
Tvout_holdup	Time all output voltages stay within regulation after	21		msec
	loss of AC.
Tpwok_holdup	Delay from loss of AC to de-assertion of PWOK	20		msec
Tpson_on_delay	Delay from PSON# active to output voltages within	5	400	msec
	regulation limits.
T pson_pwok	Delay from PSON# deactive to PWOK being de-		50	msec
	asserted.
Tpwok_on	Delay from output voltages within regulation limits to	100	1000	msec
	PWOK asserted at turn on.
T pwok_off	Delay from PWOK de-asserted to output voltages	1	200	msec
	(3.3V, 5V, 12V, -12V) dropping out of regulation
	limits.
Tpwok_low	Duration of PWOK being in the de-asserted state	100		msec
	during an 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	70		msec
	after loss of AC.
70				Revision 1.3