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AN4154 数据表(PDF) 7 Page - STMicroelectronics |
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AN4154 数据表(HTML) 7 Page - STMicroelectronics |
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7 / 21 page ![]() AN4154 Transformer specifications Doc ID 023578 Rev 2 7/21 2 Transformer specifications Table 2. Flyback transformer specifications Parameter Specification Max. output power 7 W Input voltage range 90 - 265 Vac Primary inductance 2 mH @ 50 kHz Primary side leakage inductance <3% @ 50 kHz Peak primary current 0.4 A Saturation current 1 A Minimum switching frequency 50 kHz Core size E20/10/6 Ferrite material N87, Epcos or equivalent Bobbin 10-pin horizontal Isolation Pri to Sec >2 kV Isolation Vsec7V_iso to VSec5V >4 kV |
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