Power Design Guide:
Design
Power Design : Tj = Ta + P Rth, Tj Junction Temperature, Ta EnvironmentTemperature, P Power Dissipation, Rth Thermal Resistance. Thermal Resistance : Rth(j-c), Rth(c-s) ( Thermal Resistance), Rth(s-a) Environment. Steady State Thermal Resistance, Transient Impedance. NCE Feature, Thermal Resistance, Transient Impedance Power Dissipation.
Power Dissipation
Power Power Dissipation : 1)MOSFET: Pcond = I Rds(on) D, Psw = 0.5 V I (tr+tf) fsw + 0.5 Coss V fsw; 2)IGBT: Pcond = Vce(sat) Ic D, Psw = (Eon+Eoff) fsw. : Temperature (Rds(on) Vce(sat) Temperature ), Variation. NCE Tool.
Selection Optimize
Selection : 1) Thermal Resistance: Rth(s-a) = (Tjmax - Ta)/P - Rth(j-c) - Rth(c-s); 2) Type: (<0.5W/cm ), (<2W/cm ), (>5W/cm ); 3)OptimizeDesign: Area, Optimize. Thermal Resistance Volume, Weight. NCE Model Application, Customer DesignOptimize.
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Frequently Asked Questions
1. Power Junction Temperature?
[Data Pending] Answer to be verified with manufacturer technical support team.
2. 导热硅脂如何选择和使用?
: 1) : 2-8W/(m K), ; 2)Thermal Resistance: Important, Force, <0.1K cm /W; 3) Stability:, Product; 4) : Power. : (50-100 m),, RecommendedForce. NCERecommended. For detailed specifications and application support on nce products, refer to the datasheet or contact our team.
3. Selection?
Selection : 1) : Q = P/( Cp T), P Power Dissipation, T ; 2) Force: ; 3) : -, 20% ; 4) : Application <65dB, <45dB. :. NCE DesignGuide Recommended Part Number. For detailed specifications and application support on nce products, refer to the datasheet or contact our team.
4. Yes Advantage?
[Data Pending] Answer to be verified with manufacturer technical support team.
5. Transient Impedance Design ?
[Data Pending] Answer to be verified with manufacturer technical support team.
6. Software Design Yes ?
[Data Pending] Answer to be verified with manufacturer technical support team.