DS460S Data Sheet
Logic Control
PS_PRESENT (S4):
Used to sense the number of power supplies in the system (operational or not) and provide hot plug insertion and
removal functionality by controlling main outputs during hot plug insertion and removal by employing following
circuitry. When the unit is removed from the system the fast shut down signal quickly turns OFF main outputs and
discharges output capacitors. This signal is the shortest gold finger pin on the signal connector to allow for last
make, first break configuration.
PSOK (S6): Combined indicator of AC input and main 12 V DC output. This is a three level signal to indicate different stages
as follows.
AC not OK and DC not OK – Signal status shall be LOW (< 0.6 V)
AC OK and DC not OK – Signal status shall be LOW (< 0.6 V)
AC OK and DC OK – Signal status shall be HIGH (> 3.0 V)
AC not OK and DC OK – Signal status shall be Middle Level (Between 2 V and 2.5 V)
DC OK threshold is defined as when the 12 V output is greater than 11.5 V.
DC not OK threshold is defined as when the 12 V output is less than 11.4 V & greater than 11.3 V.
I-Mon (S7): Provides both the load sharing function (as a feedback for output regulation droop function) and 12 V output
current information.
PS INTERRUPT (S4): The signal behavior in response to certain operating condition changes in the power supply as defined in the
Firmware Specification section. This signal shall be pulled up to maximum 5 V logic level external to the PS.
PS ON (S8):
Required to remotely turn on/off the power supply. PSON# is an active low signal that turns on the main 12 V DC
output. When this signal is not pulled low by the system, or left open, the 12 V output is turned off. This signal is
pulled to a standby voltage by a pull-up resistor internal to the power supply. Refer to On/Off Timing for timing dia-
gram in TRN. When in off or standby condition, the main 12 V DC output will be less than 50 mV with respect to
output return.
Environmental Specications
Operating temperature: -10 °C to 50 °C
Storage temperature: -40 °C to +85 °C
Altitude, operating: 10,000 ft.
Electromagnetic susceptibility/Input transients: -EN61000-3-2
-EN61000-4-2, 4.3, 4-4, -4-5, 4-6, 4-11
RoHS & lead-free compliant
No tantalum caps.
Humidity:
5 to 90% RH, non-condensing
Shock and vibration specificatons: Complies with Astec Std. Specifications
MTBF (Demonstrated):
500K Hrs at full load, 50 °C
Ordering Information
Model Number Nominal Output
Voltage Set Point
Set Point
Tolerance
Total
Regulation
Minimum
Current
Maximum
Current
Output Ripple
P/P Over Current Stand-by Air Flow
DS460S-3-002 12.3 Vdc ± 0.2% +5% 1 A 36.0 A 120 mV 45.9 A - 57.5 A* 12.0 V @ 2.3 A STD
DS460S-3-003 12.3 Vdc ± 0.2% +5% 1 A 36.0 A 120 mV 45.9 A - 57.5 A* 12.0 V @ 2.3 A REV
DS460S-3-004
(5,000 m) 12.3 Vdc ± 0.2% ± 5.0% 1.0 A 36.0 A 120 mV 45.9 A - 57.5 A* 12.0 V @ 2.3 A STD
DS460S-3-005
(5,000 m) 12.3 Vdc ± 0.2% ± 5.0% 1.0 A 36.0 A 120 mV 45.9 A - 57.5 A* 12.0 V @ 2.3 A REV
*Overcurrent latches off if overcurrent lasts over 1 second, otherwise it is auto recovery.