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參數(shù)資料
| 型號： | PQ60033HPA70PKF-G |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 231 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, HALF-BRICK PACKAGE-11/10 |
| 文件頁數(shù)： | 13/13頁 |
| 文件大?。?/td> | 1184K |
| 代理商： | PQ60033HPA70PKF-G |
Product # PQ60033HPA70
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2HP633K Rev. B
07/01/09
Page 9
Input:
Output:
Current:
Package:
35-75V
3.3V
70A
Half-brick
Technical Specification
BASICOPERATIONANDFEATURES
The PowerQor series converter uses a two-stage power
conversion topology. The first stage is a buck-converter that
keepstheoutputvoltageconstantovervariationsinline,load,
and temperature. The second stage uses a transformer to
providethefunctionsofinput/outputisolationandvoltagestep-
downtoachievethelowoutputvoltagerequired.
Both the first stage and the second stage switch at a fixed
frequencyforpredictableEMIperformance.Rectificationofthe
transformer’soutputisaccomplishedwithsynchronousrectifiers.
These devices, which are MOSFETs with a very low on-state
resistance,dissipatefarlessenergythanSchottkydiodes.This
istheprimaryreasonthatthePowerQorconverterhassuchhigh
efficiency,evenatverylowoutputvoltagesandveryhighoutput
currents.
Dissipationthroughouttheconverterissolowthatitdoesnot
requireaheatsinkforoperation.Sinceaheatsinkisnotrequired,
the PowerQor converter does not need a metal baseplate or
potting material to help conduct the dissipated energy to the
heatsink.ThePowerQorconvertercanthusbebuiltmoresimply
andreliablyusinghighyieldsurfacemounttechniquesonaPCB
substrate.
ThePowerQorseriesofhalf-brick,quarter-brickandeighth-brick
converters uses the industry standard footprint and pin-out
configuration.
CONTROLFEATURES
REMOTE ON/OFF (Pin 2):TheON/OFFinput,Pin2,permits
theusertocontrolwhentheconverterisonoroff.Thisinput
isreferencedtothereturnterminaloftheinputbus,Vin(-).
Therearetwoversionsoftheconverterthatdifferbythesense
ofthelogicusedfortheON/OFFinput.
In the positive logic version, the ON/OFF input is active high
(meaning that a high turns the converter on). In the negative
logic version, the ON/OFF signal is active low (meaning that a
lowturnstheconverteron).FigureAdetailsfivepossiblecircuits
for driving the ON/OFF pin. Figure B is a detailed look of the
internalON/OFFcircuitry.
REMOTE SENSE(+) (Pins 9 and 7): The SENSE(+) inputs
correctforvoltagedropsalongtheconductorsthatconnectthe
converter’soutputpinstotheload.
Pin 9 should be connected to Vout(+) and Pin 7 should be
connectedtoVout(-)atthepointontheboardwhereregulation
is desired. A remote connection at the load can adjust for a
voltage drop only as large as that specified in this datasheet,
thatis
[Vout(+)-Vout(-)]–[Vsense(+)-Vsense(-)]<
SenseRange%xVout
Pins 9 and 7 must be connected for proper regulation of
the output voltage. If these connections are not made, the
converterwilldeliveranoutputvoltagethatisslightlylowerthan
itsspecifiedvalue.
Note: the output over-voltage protection circuit senses the
voltage across the output (pins 11 and 5) to determine when
it should trigger, not the voltage across the converter’s sense
leads(pins9and7).Therefore,theresistivedropontheboard
should be small enough so that output OVP does not trigger,
evenduringloadtransients.
Figure A: Various circuits for driving the ON/OFF pin.
TTL
5V
50k
274k
Vin(+)
ON/OFF
Vin(_)
50k
100pF
Remote Enable Circuit
ON/OFF
Vin(_
)
Negative Logic
(Permanently Enabled)
ON/OFF
Vin(_
)
Positive Logic
(Permanently Enabled)
ON/OFF
Vin(_)
Direct Logic Drive
ON/OFF
5V
TTL/
CMOS
Vin(_
)
Open Collector Enable Circuit
ON/OFF
Vin(_
)
Figure B: Internal ON/OFF pin circuitry
Applications Section
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| PQ60033HPA70PNS-G | 1-OUTPUT 231 W DC-DC REG PWR SUPPLY MODULE |
| PQ60033HPA70NKF-G | 1-OUTPUT 231 W DC-DC REG PWR SUPPLY MODULE |
| PQ60033HPA70NYS-G | 1-OUTPUT 231 W DC-DC REG PWR SUPPLY MODULE |
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| PQ60033HPA70PKS | 制造商:SYNQOR 制造商全稱:SYNQOR 功能描述:Half-brick DC/DC Converter |
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| PQ60033HPA70PRF | 制造商:SYNQOR 制造商全稱:SYNQOR 功能描述:Half-brick DC/DC Converter |
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