Embedded Power for
Business-Critical Continuity
Rev. 11.07.11_180
DS460
1 of 4
DS460S
460 Watts
Distributed Power System
Distributed Power Bulk Front-End
Total Output Power: 460 Watts
+12 Vdc Stand-by Output
Wide Range Input Voltage: 90 - 264 Vac
Electrical Specifications
Input
Special Features
Input ra nge: 90 - 264
Frequency: 47 - 63 Hz, single phase AC
Active power factor correction
EN61000-3-2 harmonic compliance
Inrush current: 30 Apk maximum inrush current
Active AC inrush control
Efficiency: 92% typical at high line 50% load
1U X 2U form factor
Conducted EMI: FCC Subpart J EN55022 Class B
+12 Vdc output
+12 Vdc stand-by Radiated EMI: FCC Subpart J EN55022 Class B
Hot plug operation
Power factor: 0.99 typical
N + 1 redundant
Leakage current: 1.0 mA @ 240 Vac
Active current sharing
Hold up time: 10 ms minimum
Built-in cooling fan
2
I C communication interface bus
Output
PMBus compliant
Main DC voltage: +12.3 V @ 36.0 A
EEPROM for FRU data
O ne year warranty Stand-By: +12 V @ 2.3 A
Adjustment range: Factory set
Regulation: 11.85 - 12.45 Vdc
11.40 - 12.6 Vdc
Overcurrent: +12 Vdc; latches off if overcurrent lasts over 1 second,
Trip point 120% - 150% of rated current.
Overvoltage: +12 Vdc; 13.6 - 15.0 Vdc
+12 Vsb; 13.6 - 15.0 Vdc
Turn-on delay: 1 - 1.5 seconds
Main output rise time: 10 - 30 mS, monotonic rise
Safety
UL/cUL 60950 (UL Recognized)
NEMKO 60950
Cb Certificate and report
CE Mark (LVD)Embedded Power for
Business-Critical Continuity
Rev. 11.07.11_180
Logic Control
DS460
2 of 4
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 diagram 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 Specifications
Operating temperature: -10 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, Q3205
MTBF (Demonstrated): 500K Hrs at full load, 50 C
Ordering Information
Nominal Output Set Point Total Minimum Maximum Output Ripple
Model Number Over Current Stand-by Air Flow
Voltage Set Point Tolerance Regulation Current Current P/P
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
*Overcurrent latches off if overcurrent lasts over 1 seconds, otherwise it is auto recovery.