Rev. 09.29.09_82

DS450/DS550

2 of 4

Embedded Power for

Business-Critical Continuity

OrderingInformation

Output

NominalOutput

VoltageSetPoint

Set Point

Tolerance

Total

Regulation

Minimum

Current

Maximum

Current

OutputRipple

P/P

Overcurrent

DS450-3

12.0Vdc

3.3Vsb

±0.2%

±1%

+5/-3%

+5/-4%

0A

0A

37.0A

3.0A

120mV

60mV

39.5A-44.4A

4.9AAvg,7Amax

DS550-3

12.0Vdc

3.3Vsb

±0.2%

±1%

+5/-3%

+5/-4%

0A

0A

45.0A

3.0A

120mV

60mV

48.0A-54.0A

4.9AAvg,7Amax

*Overcurrentlatchesoffifovercurrentlastsover1second,otherwiseitisautorecovery.

*For5Vsb,consultmarketing.

LogicControl

PSInhibit:

WhensupplyisinsertedintothesystemthepinispulledLOWandpowersupplyisONafterallotherpinsare

seated

PS_Status:

dueto-PS_ON,PS_KILL,orafault,thenP6ishigh.

AC_Pfail:

failure(ACmissingortoolowforpowersupplyoperation).Ifthesupplyisturnedoffdueto-PS_ON,PS_KILL,

orafault,thenP7remainshigh.

Fan_Fault:

ThePSUwillprovidesanopencollectorTach1output.

Tach_1:

Thissignalisgeneratedfromthefan.Thesignalshouldgenerate2pulsesperrevolution.Thelogicinthe

systemwillbeoperatingat3.3V.

Operatingtemperature:

-10°Cto50°C

Storagetemperature:

-40°Cto+70°C

Altitude,operating:

10,000ft.

Electromagnetic

susceptibility/Inputtransients:

-EN61000-3-2,-3-3

-EN61000-4-2,4.3,4-4,-4-5,4-11Level

-EN55024:1998

RoHS&lead-freecompliant(notantalumcaps)

Humidity:

20to90%RH,non-condensing

ShockandvibrationspecificatonscomplieswithEmersonNetworkPowerStd.Specification,Q3205

MTBF(Demonstrated):

400KHrsatfullload,40°C

EnvironmentalSpecifications