DS760SL Series Data Sheet
Outputs - All Models
Turn On/Off Timing
Item
Description
Min
10
1
Max
300
Units
mSec
mSec
mSec
mSec
mSec
mSec
mSec
mSec
mSec
mSec
mSec
mSec
mSec
Tvout_rise
+12 Output rise time
Tvout_rise
5.0 Vsb output rise time
50
Tsb_on_delay
Tac_on_delay
Tvout_holdup
Tpwok_holdup
Tpson_on_delay
Tpson_pwok
Tacok_delay
Tpwok_on
Delay from AC being applied to 5.0 Vsb being within regulation.
Delay from AC being applied to all output voltages being within regulation.
Time all output voltages, including 5.0 Vsb, stay within regulation after loss of AC.
Delay from loss of AC to de-assertion of PWOK
1500
3000
12
5
Delay from PSON# active to output voltages within regulation limits.
Delay from PSON# de-active to PWOK being de-asserted.
Delay from loss of AC input to de-assertion of ACOK#.
50
2500
100
10
100
1
Delay from output voltages within regulation limits to PWOK asserted at turn on.
Delay from PWOK de-asserted to 12 Vdc or 5.0 Vsb dropping out of regulation limits.
Duration of PWOK being in the de-asserted state during an off/on cycle using AC or the PSON# signal.
Delay from 5.0 Vsb being in regulation to 12 Vdc being in regulation at AC turn on.
1000
1000
Tpwok_off
Tpwok_low
Tsb_vout
100
50
1000
PSON #
PWOK# (POWER GOOD)
The PSON# signal is required to remotely turn on/off the power
supply. PSON# is an active low signal that turns on the +12 Vdc
power rail. When this signal is not pulled low by the system, or left
open, the +12 Vdc output turns off. The 5.0 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.
PPWOK is a power good signal and will assert HIGH when the
outputs are within the regulation limits. PWOK will be pulled LOW
by the power supply to indicate when either output falls below
regulation limits or when AC power has been removed for a time
sufficiently long so that power supply operation is no longer guaran-
teed. The start of the PWOK# delay time shall be inhibited as long
as the +12 Vdc output is in current limit or the 5.0 Vsb output is
below the regulation limit.
PSON Signal Characteristics
PWOK Signal Characteristics
Signal Type
Accepts an open collector/drain
input from the system. Pulled-up
to the 5.0 Vsb located in power
supply.
Signal Type
Open collector/drain output
from power supply. Pullup to
5.0 Vsb external to the power
supply.
PWOK = High
PWOK = Low
Power Good
PSON# = Low
PSON# = Open
ON
Power Not Good
OFF
MIN
0 V
MAX
0.8 V
MIN
0 V
MAX
0.8 V
To tLogic level low voltage, Ising = 4 mA
Logic level high voltage, Isource = 200 µA
Sink current, PWOK = low
Logic level low (power supply ON)
Logic level high (power supply OFF)
Source current, Vpson = low
2.0 V
4.125 V
4 mA
2.0 V
4.125 V
4 mA
Source current, PWOK = high
2 mA
Power up delay: Tpson_on_delay
5 msec
200 msec
ARTESYN [ ARTESYN TECHNOLOGIES ]
