HPS-AXX Emerson Network Power, HPS-AXX Datasheet - Page 6

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HPS-AXX

Manufacturer Part Number
HPS-AXX
Description
HPS-AXX
Manufacturer
Emerson Network Power
Datasheet
Timing Signal Definitions
Turn ON/OFF Timing
Item
Tvout_rise
Tsb_on_delay
Tac_on_delay
Tvout_holdup
Tpwok_holdup
Tpson_on_delay Delay from PSON# active to output voltages within regulation
Tpson_pwok
Tacok_delay
Tpwok_on
Tpwok_off
Tpwok_low
Tsb_vout
Signals and Controls - All Models
PSON #
limits.
Description
48 V Output rise time
Delay from AC being applied to 5 Vsb being within regulation.
Delay from AC being applied to all output voltages being within
regulation.
Time all output voltages, including 5 Vsb, stay within regulation
after loss of AC.
Delay from loss of AC to de-assertion of PWOK
limits.
Delay from PSON# de-active to PWOK being de-asserted.
Delay from loss of AC input to de-assertion of ACOK#.
Delay from output voltages within regulation limits to PWOK
asserted at turn on.
Delay from PWOK de-asserted to 48 V dropping out of regulation
Duration of PWOK being in the de-asserted state during an off/on
cycle using AC or the PSON# signal.
Delay from 5 Vsb being in regulation to 48 V being in
regulation at AC turn on.
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
PSON# = Low
PSON# = Open
Logic level low (power supply ON)
Logic level high (power supply OFF)
Source current, Vpson = low
Power up delay: Tpson_on_delay
the system. Pulled-up to the 5 Vsb located in
Accepts an open collector/drain input from
5 msec
2.40 V
MIN
0 V
--
power supply.
OFF
ON
Min
100
100
10
10
50
5
5
5
1
400 msec
3.40 V
0.4 V
4 mA
MAX
1500
2000
1000
1000
2000
Max
300
400
50
Embedded Power for
Business-Critical Continuity
msec
msec
msec
msec
msec
msec
msec
msec
msec
msec
msec
msec
Units
Rev. 02.22.11_81
HPS3000 Series
6 of 8

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