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IQ24050QTC24NRS PDF预览

IQ24050QTC24NRS

更新时间: 2024-02-21 15:12:13
品牌 Logo 应用领域
SYNQOR 转换器
页数 文件大小 规格书
28页 1656K
描述
Quarter-brick DC-DC Converter

IQ24050QTC24NRS 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Contact Manufacturer零件包装代码:MODULE
包装说明:ROHS COMPLIANT PACKAGE-8针数:8
Reach Compliance Code:compliantECCN代码:EAR99
风险等级:5.75模拟集成电路 - 其他类型:DC-DC REGULATED POWER SUPPLY MODULE
最大输入电压:36 V最小输入电压:18 V
标称输入电压:24 VJESD-30 代码:R-XDMA-P8
JESD-609代码:e3最大负载调整率:0.3%
功能数量:1输出次数:1
端子数量:8最高工作温度:100 °C
最低工作温度:-40 °C最大输出电压:5.5 V
最小输出电压:4 V标称输出电压:5 V
封装主体材料:UNSPECIFIED封装形状:RECTANGULAR
封装形式:MICROELECTRONIC ASSEMBLY峰值回流温度(摄氏度):260
认证状态:Not Qualified表面贴装:NO
技术:HYBRID温度等级:INDUSTRIAL
端子面层:MATTE TIN OVER NICKEL端子形式:PIN/PEG
端子位置:DUAL处于峰值回流温度下的最长时间:10
最大总功率输出:120 W微调/可调输出:YES
Base Number Matches:1

IQ24050QTC24NRS 数据手册

 浏览型号IQ24050QTC24NRS的Datasheet PDF文件第21页浏览型号IQ24050QTC24NRS的Datasheet PDF文件第22页浏览型号IQ24050QTC24NRS的Datasheet PDF文件第23页浏览型号IQ24050QTC24NRS的Datasheet PDF文件第25页浏览型号IQ24050QTC24NRS的Datasheet PDF文件第26页浏览型号IQ24050QTC24NRS的Datasheet PDF文件第27页 
Technical  
Specification  
IQ24-QTC Family  
BASICꢀOPERATIONꢀANDꢀFEATURES  
CONTROLꢀFEATURES  
This converter series uses a two-stage power conversion  
topology. The first stage is a buck-converter that keeps the  
output voltage constant over variations in line, load, and  
temperature. The second stage uses a transformer to provide  
theꢀ functionsꢀ ofꢀ input/outputꢀ isolationꢀ andꢀ voltageꢀ step-upꢀ orꢀ  
step-down to achieve the output voltage required.  
RꢁMOTꢁ Oꢀ/OFF (Pin 2):ꢀTheꢀON/OFFꢀinput,ꢀPinꢀ2,ꢀpermitsꢀ  
the user to control when the converter is on or off. This input  
isꢀ referencedꢀ toꢀ theꢀ returnꢀ terminalꢀ ofꢀ theꢀ inputꢀ bus,ꢀ Vin(-).ꢀ  
TheꢀON/OFFꢀsignalꢀisꢀactiveꢀlowꢀ(meaningꢀthatꢀaꢀlowꢀturnsꢀtheꢀ  
converterꢀon).ꢀFigureꢀAꢀdetailsꢀfourꢀpossibleꢀcircuitsꢀforꢀdrivingꢀ  
theꢀON/OFFꢀpin.ꢀFigureꢀBꢀisꢀaꢀdetailedꢀlookꢀofꢀtheꢀinternalꢀON/  
OFFꢀcircuitry.  
Bothꢀ theꢀ firstꢀ stageꢀ andꢀ theꢀ secondꢀ stageꢀ switchꢀ atꢀ aꢀ fixedꢀ  
frequencyforpredictableEMIperformance.Rectificationoftheꢀ  
transformer’sꢀoutputꢀisꢀaccomplishedꢀwithꢀsynchronousꢀrectifiers.ꢀ  
Theseꢀ devices,ꢀ whichꢀ areꢀ MOSFETsꢀ withꢀ aꢀ veryꢀ lowꢀ on-stateꢀ  
resistance,ꢀdissipateꢀfarꢀlessꢀenergyꢀthanꢀSchottkyꢀdiodes.ꢀThisꢀisꢀ  
the primary reason that the converter has such high efficiency,  
even at very low output voltages and very high output currents.  
RꢁMOTꢁ SꢁꢀSꢁ(+) (Pins 7 and 5):ꢀ Theꢀ SENSE(+)ꢀ inputsꢀ  
correct for voltage drops along the conductors that connect the  
converter’sꢀoutputꢀpinsꢀtoꢀtheꢀload.  
Pinꢀ 7ꢀ shouldꢀ beꢀ connectedꢀ toꢀ Vout(+)ꢀ andꢀ Pinꢀ 5ꢀ shouldꢀ beꢀ  
connectedꢀtoꢀVout(-)ꢀatꢀtheꢀpointꢀonꢀtheꢀboardꢀwhereꢀregulationꢀ  
isꢀ desired.ꢀ Aꢀ remoteꢀ connectionꢀ atꢀ theꢀ loadꢀ canꢀ adjustꢀ forꢀ aꢀ  
voltage drop only as large as that specified in this datasheet,  
that is  
These converters are offered totally encased to withstand harsh  
environmentsꢀandꢀthermallyꢀdemandingꢀapplications.ꢀDissipationꢀ  
throughout the converter is so low that it does not require a  
heatsinkꢀ forꢀ operationꢀ inꢀ manyꢀ applications;ꢀ however,ꢀ addingꢀ  
a heatsink provides improved thermal derating performance in  
extreme situations.  
[Vout(+)ꢀ-ꢀVout(-)]ꢀ–ꢀ[Vsense(+)ꢀ-ꢀVsense(-)] <  
SenseꢀRangeꢀ%ꢀxꢀVout  
Pinsꢀ 7ꢀ andꢀ 5ꢀ mustꢀ beꢀ connectedꢀ forꢀ properꢀ regulationꢀ ofꢀ  
the output voltage. If these connections are not made, the  
converter will deliver an output voltage that is slightly higher  
than its specified value.  
This series of converters uses the industry standard footprint  
and pin-out configuration.  
Note:ꢀ theꢀ outputꢀ over-voltageꢀ protectionꢀ circuitꢀ sensesꢀ theꢀ  
voltageꢀ acrossꢀ theꢀ outputꢀ (pinsꢀ 8ꢀ andꢀ 4)ꢀ toꢀ determineꢀ whenꢀ  
itshouldtrigger,notthevoltageacrosstheconverter’ssenseꢀ  
leadsꢀ(pinsꢀ7ꢀandꢀ5).ꢀꢀTherefore,ꢀtheꢀresistiveꢀdropꢀonꢀtheꢀboardꢀ  
shouldbesmallenoughsothatoutputOVPdoesnottrigger,ꢀ  
even during load transients.  
ON/OFF  
ON/OFF  
5V  
_
_
Vin( )  
Vin( )  
NegativeꢀLogic  
(PermanentlyꢀEnabled)  
RemoteꢀEnableꢀCircuit  
50k  
5V  
ON/OFF  
ON/OFF  
50k  
TTL  
TTL/  
CMOS  
ON/OFF  
100pF  
_
Vin( )  
_
_
Vin( )  
Vin( )  
OpenꢀCollectorꢀEnableꢀCircuit  
DirectꢀLogicꢀDrive  
Figure A: Various circuits for driving the ON/OFF pin.  
Figure B: Internal ON/OFF pin circuitry  
Product # IQ24xxxQTCxx  
Phone 1-888-567-9596  
www.synqor.com  
Doc.# 005-IQ24QTX Rev. C  
09/23/08  
Page 24  

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