Product # PQ60018ETL45

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2ET618F Rev. B

06/01/09

Page 4

Input:

Output:

Current:

Package:

35-75 V

1.8 V

45 A

Eighth-brick

Technical Specification

PQ60018ETL45 Electrical Characteristics

temperature with appropriate power derating. Specifications subject to change without notice.

Parameter

Min.

Typ.

Max.

Units Notes & Conditions

ABSOLUTE MAXIMUM RATINGS

InputVoltage

Non-Operating

100

V

Continuous

Operating

35

75

V

Continuous

OperatingTransientProtection

100

V

100ms transient, square wave

IsolationVoltage(inputtooutput)

2250

V

Basicinsulation,PollutionDegree2

OperatingTemperature

-40

100

°C

StorageTemperature

-55

125

°C

VoltageatON/OFFinputpin

-2

18

V

INPUT CHARACTERISTICS

OperatingInputVoltageRange

35

48

75

V

InputUnder-VoltageLockout

Turn-OnVoltageThreshold

31.5

32.6

33.7

V

Turn-OffVoltageThreshold

29.6

30.6

32.5

V

LockoutVoltageHysteresis

1.9

2.0

2.1

V

MaximumInputCurrent

2.6

A

100%Load,35Vin,nominalVout

No-LoadInputCurrent

0

46

75

mA

DisabledInputCurrent

6

10

mA

InrushCurrentTransientRating

0.1

ResponsetoInputTransient

60

mV

1000V/msinputtransient

InputReflectedRippleCurrent

2

mA

RMSthru10µHinductor;Figures13&15

InputTerminalRippleCurrent

30

mA

RMS;Figures13&14

RecommendedInputFuse

20

A

Fastblowexternalfuserecommended

InputFilterComponentValues(L\C)

1.0\3.3 µH\µF

Internalvalues;seeFigureE

RecommendedExternalInputCapacitance

47

µF

TypicalESR0.1-0.2W;seeFigure13

OUTPUT CHARACTERISTICS

OutputVoltageSetPoint

1.785

1.800

1.817

V

OutputVoltageRegulation

OverLine

+0.1\1.8

%\mV

OverLoad

+0.2\3.6

%\mV

OverTemperature

+5

mV

TotalOutputVoltageRange

1.774

1.800

1.828

V

Oversample,line,load,temperature&life

20MHzbandwidth;Figures 13&16

Peak-to-Peak

35

mV

FullLoad;seeFigures 13&16

RMS

15

mV

FullLoad;seeFigures 13&16

OperatingOutputCurrentRange

0

45

A

Subjecttothermalderating;Figures5-8

OutputDCCurrent-LimitInception

48

52

64

A

OutputVoltage10%Low

OutputDCCurrent-LimitShutdownVoltage

1.0

V

Back-DriveCurrentLimitwhileEnabled

4.6

6.5

A

Negativecurrentdrawnfromoutput

Back-DriveCurrentLimitwhileDisabled

10

50

mA

Negativecurrentdrawnfromoutput

MaximumOutputCapacitanceElectrolytic

43

mF

1.8Voutat45AResistiveLoad

MaximumOutputCapacitanceCeramic

5

mF

1.8Voutat45AResistiveLoad

DYNAMIC CHARACTERISTICS

InputVoltageRippleRejection

67

dB

120Hz;Figure20

OutputVoltageduringLoadCurrentTransient

ForaStepChangeinOutputCurrent(0.1A/µs)

120

mV

50%to75%to50%Ioutmax;Figure11

ForaStepChangeinOutputCurrent(1A/µs)

200

mV

50%to75%to50%Ioutmax;Figure12

Settling Time

1000

µs

Towithin1%Voutnom

Turn-OnTransient

Turn-OnTime

10

13

20

ms

Fullload,Vout=90%nom.;Figures9&10

RestartInhibitTime

180

200

230

ms

-40°Cto+125°C;FigureF

OutputVoltageOvershoot

0

%

Noloadcapacitance,Iout=0A

EFFICIENCY

100%Load

87

%

Figures1-4

50%Load

89

%

Figures1-4

TEMPERATURE LIMITS FOR POWER DERATING CURVES

SemiconductorJunctionTemperature

125

°C

Packageratedto150°C

BoardTemperature

125

°C

ULratedmaxoperatingtemp130°C

TransformerTemperature

125

°C

SeeFigures5-8forderatingcurves

ISOLATION CHARACTERISTICS

IsolationVoltage(dielectricstrength)

2250

V

IsolationResistance

30

3300

pF

Note1:Outputvoltageripplecanexceedmaximumspecificationduringstartupwhenoutputvoltageislessthan0.7V.Additionaloutputcapacitancewillmitigatethis

startupripplebehavior.Forapplicationsrequiringreducedoutputvoltagerippleandnoise,consultSynQorapplicationssupport(e-mail:support@synqor.com)

Note2:Highervaluesofisolationcapacitancecanbeaddedexternaltothemodule.