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MC33463H-30KT1 数据表(PDF) 11 Page - ON Semiconductor |
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MC33463H-30KT1 数据表(HTML) 11 Page - ON Semiconductor |
11 / 12 page MC33463 11 MOTOROLA ANALOG IC DEVICE DATA Figure 20. Design Equations Calculation Step–Down Step–Up Flyback ton D fosc D fosc D fosc L t ton (V in * Vsat * VO) (2I O ) t (n)(V in )2(ton) P O t (n)(V in )2(ton) P O IL(avg) IO Iin Iin IL(pk) (V in * Vsat * VO)(ton) L (V in * Vsat)(ton) L (V in * Vsat)(ton) L Vripple(pp) DI L 1 16foscCO 2 ) (ESR) 2 1 2 [ (ton)(IO) (C O ) [ (ton)(IO) (C O ) The following converter design characteristics must be chosen: Vin – Nominal Operating dc input voltage VO – Desired dc output voltage IO – Desired dc output current Vripple(pp) – Desired peak–to–peak output ripple voltage. For best performance the ripple voltage should be kept to a low value since it will directly affect line and load regulation. Capacitor CO should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator applications. NOTE: 1. Vsat – Saturation voltage of the switching transistor. n – Estimated circuit efficiency. |
类似零件编号 - MC33463H-30KT1 |
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类似说明 - MC33463H-30KT1 |
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