HPS3000 Datasheet, PDF (5/7 Pages) Emerson Network Power – 3000 W output power

Embedded Power for
Business-Critical Continuity
Timing Signal Definitions
Turn ON/OFF Timing
Item
Description
Min
Tvout_rise
48 V Output rise time
5
Tsb_on_delay Delay from AC being applied to 5 Vsb being within regulation.
Tac_on_delay
Delay from AC being applied to all output voltages being within
regulation.
Tvout_holdup Time all output voltages, including 5 Vsb, stay within regulation 10
after loss of AC.
Tpwok_holdup Delay from loss of AC to de-assertion of PWOK
5
Tpson_on_delay Delay from PSON# active to output voltages within regulation
5
limits.
Tpson_pwok
Delay from PSON# de-active to PWOK being de-asserted.
Tacok_delay
Delay from loss of AC input to de-assertion of ACOK#.
10
Tpwok_on
Tpwok_off
Tpwok_low
Delay from output voltages within regulation limits to PWOK
100
asserted at turn on.
Delay from PWOK de-asserted to 48 V dropping out of regulation 1
limits.
Duration of PWOK being in the de-asserted state during an off/on 100
cycle using AC or the PSON# signal.
Tsb_vout
Delay from 5 Vsb being in regulation to 48 V being in
50
regulation at AC turn on.
Max
300
1500
2000
Units
msec
msec
msec
msec
msec
400 msec
50
1000
msec
msec
msec
1000 msec
msec
2000 msec
Signals and Controls - All Models
Rev. 7.10.09_81
HPS3000 Series
5 of 7
PSON #
The PSON# signal is required to remotely turn on/off the power supply.PSON# is an active low signal
that turns on the 48 V power rail.When this signal is not pulled low by the system, or left open, the
48 V output turns off.The 5 Vsb output remains on.This signal is pulled to a standby voltage by a
pull-up resistor internal to the power supply. The power supply fan(s) shall operate at the lowest speed.
PSON# Signal Characteristic
Signal Type
Accepts an open collector/drain input from
the system.Pulled-up to the 5 Vsb located in
power supply.
PSON# = Low
ON
PSON# = Open
OFF
MIN
MAX
Logic level low (power supply ON)
0V
0.8 V
Logic level high (power supply OFF)
2.0 V
4.80 V
Source current, Vpson = low
--
4 mA
Power up delay: Tpson_on_delay
5 msec
400 msec