DS460SDC-3 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 DC input and main 12 V DC output. This is a three level signal to indicate different stages

as follows:

DC not OK and DC not OK – Signal status shall be LOW (< 0.6 V)

DC OK and DC not OK – Signal status shall be LOW (< 0.6 V)

DC OK and DC OK – Signal status shall be HIGH (> 3.0 V)

DC 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.

LED INDICATOR

GREEN = DC input present, 12 V output & 12 V standby in regulation

OFF = Overvoltage, overcurrent, overtemperature, undervoltage protection triggered.

Environmental Specifications

Operating temperature

-10 °C to 50 °C

Storage temperature

-40 °C to +85 °C

Altitude, operating

10,000 ft.

Electromagnetic susceptibility/Input transients

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

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

DS460SDC-3

12.3 Vdc

± 0.2%

± 5%

1 A

36.0 A

120 mV

150%

12.0 V @ 2.3 A

STD

DS460SDC-3-001

12.3 Vdc

± 0.2%

± 5%

1 A

36.0 A

120 mV

150%

12.0 V @ 2.3 A

REV

*Overcurrent latches off if overcurrent lasts over 1 second, otherwise it is auto recovery.