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Embedded Power for
Business-Critical Continuity
VRM64 Series
Single Output
Special Features
• MeetsAMD64Processor
specication
• AllowsdynamicVIDcode
changes
• 5BitVIDinput
• 0.8Vdcto1.55Vdcin
25mVsteps
• Upto100A/µsloadtransient
• Differentialremotesensefor
improved load regulation
• Verticalplug-intostandard
motherboard connector with
or without retention latch
• Outputcurrentupto80A
continuous
• Opencollectorpowergood
signal
• Monotonicturn-onand
turn-off
• Fusedinput
• SMBusinterface
• AvailableRoHScompliant
• 2YearWarranty
Input Voltage: 12 Vdc
# of Outputs: Single
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ElectricalSpecications
Output
Voltageadjustability: SeeVIDcodes,Table3 0.8-1.55Vdc
Outputcurrent: 80A
Votlagesettingaccuracy: 20MHzbandwidth ±0.8%
Rippleandnoise:
(SeeNotes1,2) 50mVpk-pk
Shortcircuitprotection:
(SeeNote7) Continuouscurrentlimit,default
setting as trip
Remotesensingcompensating
voltage: Upto300mVmax
Input
Inputvoltagerange: 12Vinnominal 10.8-13.2Vdc
Inputcurrent: Operation
No load
RemoteOFF
12.54Amax.
1.1Amax.
45mAmax.
UVLO: TurnONvoltage
TurnOFFvoltage
Hysteresis
10.5Vtyp.
9.8Vtyp.
0.65Vtyp.
Start-uptime: Nominal line 10msmax.
Enable Logiccompatibility
ON
OFF
Ref.to-input
>1.7Vdc
<0.8Vdc
+5_ALWAYS Current demand 250mAtyp.
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Unlessotherwisestated,allspecicationsaretypicalatnominalinput,maximumcontinuousratedloadat
25°CandvoltagesarereferencedtoVin-.
Specications
General Charateristics
Efciency: 1.5Voutput@60A 84%typ.
Switchingfrequency: Fixed(SeeNote4) 830kHz
Materialammability: UL94V-0
Weight: <52g(<2oz)
MTBF: TelcordiaSR-332 >2,000,000hours
Matingconnector:
(SeeTable1forpinout) Tyco/Elcon 283-0172-01303
Connectorngers: Goldplated,30µ-inches
EnvironmentalSpecications
Maximumtemperatureshock: Operating 5°C/10min.
Temperatureshock: Operating
Non-operating
10°C/hour
20°C/hour
Humidity:
(Non-condensing) Operating
Non-operating
85%RH
95%RH
Altitude: Operating
Non-operating
10,000feetmax.
50,000feetmax.
Shock: Operational and non-operational 30G11msHalfsinewave
Vibration:
(SeeNote8) Operational and non-operational 0.02G2/Hzmax.
Electrostaticdischarge:
IEC61000-4-2
(SeeNote6)
Indirectair
Indirectcontact
15kV
8kV
Thermalperformance:
(SeeNote5) Operating ambient temperature
Non-operating
0°Cto+60°C
-40°Cto+100°C
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Table 2: Voltage Identification (VID) Codes
Table 1: Pin Connections
Ordering Information
Input
Voltage
Output
Voltage
OVP Output Current Efficiency
(typ)
Regulation
Load
Model Numbers (10, 11)
Min Max
12 Vdc 0.8 - 1.55 Vdc 2.2 Vdc 0 A 80 A 84% 50 mV VRM64-80-12-UY
Pin Connections
Pin No. Function Pin No. Function
1GND 54 +12Vin
2GND 53 +12Vin
3GND 52 +12Vin
4 VID4 51 VID3
5 VID2 50 VID1
6 VID0 49 Current Share
7COREFBH 48 COREFBL
8 PWRGD 47 CBOUT
9 Enable 46 ADD0
10 SMDA 45 ADD1
11 SMCL 44 -VRMPRES
12 SGND 43 +5V_always
13 VDD Core + 42 VDD Core +
14 VDD Core + 41 VDD Core +
15 VDD Core + 40 VDD Core +
16 GND 39 GND
17 GND 38 GND
18 GND 37 GND
19 VDD Core + 36 VDD Core +
20 VDD Core + 35 VDD Core +
21 VDD Core + 34 VDD Core +
22 VDD Core + 33 VDD Core +
23 VDD Core + 32 VDD Core +
24 VDD Core + 31 VDD Core +
25 GND 30 GND
26 GND 29 GND
27 GND 28 GND
VoltageIdentication(VID)Codes
VID4 VID3 VID2 VID1 VID0 VDAC
1 1 1 1 1 Off
1 1 1 1 0 0.800
1 1 1 0 1 0.825
1 1 1 0 0 0.850
1 1 0 1 1 0.875
1 1 0 1 0 0.900
1 1 0 0 1 0.925
1 1 0 0 0 0.950
1 0 1 1 1 0.975
1 0 1 1 0 1.000
1 0 1 0 1 1.025
1 0 1 0 0 1.050
1 0 0 1 1 1.075
1 0 0 1 0 1.100
1 0 0 0 1 1.125
1 0 0 0 0 1.150
0 1 1 1 1 1.175
0 1 1 1 0 1.200
0 1 1 0 1 1.225
0 1 1 0 0 1.250
0 1 0 1 1 1.275
0 1 0 1 0 1.300
0 1 0 0 1 1.325
0 0 1 1 1 1.350
0 0 1 1 1 1.375
0 0 1 1 0 1.400
0 0 1 0 1 1.425
0 0 1 0 0 1.450
0 0 0 1 1 1.475
0 0 0 1 0 1.500
0 0 0 0 1 1.525
0 0 0 0 0 1.550
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Notes:
1 Recommendedoutputcapacitance,48x22µFceramicMLCC.
2 50mVpk-pkripple.Vin=12V,Vout=1.5V,Iout=80A.
3 Withtherecommendedcapacitors(SeeNote1)acrosstheoutput,theoutput
voltage stays within the load regulation window for all loads and transient
events,upto80A.ItwillalsoallowinstantaneousVID-on-the-ychangesofup
to500mVat80A.
4 VRM64usesavephasebucktopology.Eachphaseswitchesat
830kHz.Thisgivesanequivalentswitchingfrequencyof4.2MHz
5 Maximumcurrentrequiresadequateforcedairovertheconverter.Please
consultFigure1forthermalderating.
6 WhentheVRMdetectsanoutputover-voltageevent,theOVPpin
transitionstologichigh.Thissignalcanbeusedtoshutdownthesupplyto
theVRM,ordriveanexternalcrowbardevice.
7 Thesearedefaultsettings.Thecurrentlimitmaybesetto‘trip’or
‘hiccup’.Theoutputovervoltagelimits,inputovervoltageandundervoltage
settings,theoutputdroopandoffset,thecurrentlimitsetpointandmany
otherscanbechangedbycomponentchanges.Please consult the factory for
details.
8 0.01G2/Hzfrom5Hzto20Hz,maintaining0.02G2/Hzfrom20Hzto500Hz,
allaxes.
9 InaccordancewithAMDrequirements,PWRGDwillgohighatleast2msafter
VDDsettleswithinspecications.
10 The‘Y’sufxindicatesthatthesepartsareTSERoHS5/6(nonPb-free)
compliant.Pb-free(RoHS6/6)compliantversionsmaybeavailableonspecial
request,pleasecontactyourlocalsalesrepresentativefordetails.
11 NOTICE:Somemodelsdonotsupportalloptions.Pleasecontactyourlocal
EmersonNetworkPowerrepresentativeorusetheon-linemodelnumber
searchtoolathttp://www.PowerConversion.comtondasuitablealternative.
Signal Electrical Interface
Characteristic - Signal Name Symbol MIN TYP MAX UNITS NOTES AND CONDITIONS
ENABLE - on ENABLE (on) 1.7 5.5 V No pull up resistor provided by the VRM
ENABLE - off ENABLE (off) -0.3 0.8 V No pull up resistor provided by the VRM
PWRGD - high VPWRGD (high) 1.7 V No pull up resistor provided by the VRM
PWRGD - low VPWRGD (low) -0.3 0.8 V Open-collector output to not more than
5.5 V, max current 5 mA
PWRGD - low threshold 150 mV Below VID setting
PWRGD - turn-on response to
ENABLE going high Trise 2 2.5 10 ms For waveforms, refer to Application
Note 185
VID - high Vih (VID) 1.7 5.5 V
VID - low Vil (VID) -0.3 0.8 V
OVP1 (See Note 7) 2.2 V Default setting is trip. At OVP1 or OVP 2
whichever is smaller
OVP2 (See Note 7) 133 % Of VID Setting
OVP drive voltage CB_ OUT 4 V
SMBus Address high ADD_ x (high) 3.8 V
SMBus Address low ADD_ x (low) -0.3 0.7 V
SMBus Data high SMDA (high) 2.1 5.5 V
SMBus Data low SMDA (low) -0.3 0.8 V
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Electromagnetic Compatibility
Characteristic - Signal Name Symbol MIN TYP MAX UNITS NOTES AND CONDITIONS
ESD - Indirect air 15 kV EN61000-4-2
In end user equipment
ESD - Indirect contact 8 kW EN61000-4-2
In end user equipment
Input characteristics
Input current - operating
IIN
12 A VIN = VIN (typ)
Iout (cont.) = 80 A, VID = 1.5 V
Input capacitance - external bypass CINext 1600 µF
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Figure 2: Load Regulation
0 40 90 100
-25
-15
-10
-5
0
11 Vin
12 Vin
13 Vin
OUTPUT VOLTAGE (V)
OUTPUT CURRENT (A)
-20
2010 30 50 60 70 80 110
Figure 1: Typical Thermal Derating At Sea Level
(12 Vin, 1.5 Vout)
Figure 3: Typical Efficiency Vs Load
TEMPERATURE (ºC)
OUTPUT CURRENT (A)
20
30
40
50
60
70
40 50 60 70 80 90 100
600LFM (3m/s)
500LFM (2.5m/s)
400LFM (2m/s)
300LFM (1.5m/s)
40 60 80 100
78
80
82
84
86
11 Vin
12 Vin
13 Vin
EFFICIENCY (%)
OUTPUT CURRENT (A)
Figure 4: Output Ripple and Noise
10 mV Per Square, 2 µs Per Square
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Dimensions in Inches Approx Metric
Equiv in (mm)
Tolerances (unless otherwise specified)
3 Places 0.010 (0.250), 2 Places 0.02 (0.51)
Third Angle Projections
0.50 max.
(12.7 max.)
0.75 max.
(19.05max.)
ELCON #283-0172-01303
MATING CONNECTOR
REF
C
L
0.039 (1.00)
0.25 max.
(6.35 max.)
0.519 ([13.19)
1.160 (29.46)
Pin #1
3.675 (93.35)
2.184 (55.47)
0.975
(24.77)
R0.079 (R2.00)
0.571 (14.50)
Pin #27
Plane
0.079 (2.00)
Conn Mtg
INSTALLED HEIGHT
1.250 max. (31.75 max.)
Figure 5: Mechanical Drawing
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Embedded Power for
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Rev.02.11.10_64
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Americas
5810VanAllenWay
Carlsbad,CA92008
USA
Telephone:+17609304600
Facsimile: +17609300698
Europe (UK)
WaterfrontBusinessPark
MerryHill,Dudley
WestMidlands,DY51LX
UnitedKingdom
Telephone:+44(0)1384842211
Facsimile: +44(0)1384843355
Asia (HK)
14/F,LuPlaza
2WingYipStreet
KwunTong,Kowloon
HongKong
Telephone:+85221763333
Facsimile: +85221763888
Forglobalcontact,visit:
www.PowerConversion.com
techsupport.embeddedpower
@emerson.com
Whileeveryprecautionhasbeentakentoensure
accuracyandcompletenessinthisliterature,Emerson
NetworkPowerassumesnoresponsibility,anddisclaims
all liability for damages resulting from use of this
informationorforanyerrorsoromissions.
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