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公司介绍
NCP4390是一款先进的脉冲频率调制(PFM)控制器,适用于具有同步整流(SR)功能的LLC谐振转换器,可为隔离式DC/DC转换器提供同类最佳的效率。它采用基于电荷控制的电流模式控制技术,将振荡器的三角波与集成的开关电流信息结合起来,从而确定开关频率。这为功率级提供了更好的控制转输出功能,简化了反馈环路设计,同时实现了真正的输入功率限制功能。闭环软启动可防止误差放大器饱和,并允许输出电压单调上升而不受负载条件的影响。双边缘跟踪自适应死区时间控制可最大限度地缩短体二极管的导通时间,从而最大限度地提高效率。
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CAD Models
Compliance
Package Type
Case Outline
MSL Type
MSL Temp (°C)
Container Type
Container Qty.
ON Target
Topology
Control Mode
fsw Typ (kHz)
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UVLO (V)
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Drive Cap. (mA)
Reference Price
NCP4390DR2G
Active
Pb
A
H
P
SOIC-16
1
260
REEL
2500
Y
Half-Bridge
Current Mode
Up to 690
Yes
8.6
Yes
No
Yes
20
100 / 100
$0.92
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可靠性数据
Die Related Summary Data
Device: NCP4390DR2G
Equivalent to wafer fab process: CMOS SUB
产品技术
产品技术
等效器件小时
平均故障间隔时间/平均无故障时间(按小时计算)
FITS
CMOS SUB
2
920154574
More Details
Re-calculate Data
Data is based on the following assumptions.
Note: The temperature and confidence level may be adjusted to your requirements.
Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)
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