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TDA7294 数据表(PDF) 18 Page - STMicroelectronics |
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TDA7294 数据表(HTML) 18 Page - STMicroelectronics |
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18 / 31 page ![]() Figure 20. High efficiency application circuit TDA7294 3 1 4 13 7 8 15 2 14 6 10 R3 680 C11 22µF L3 5µH 270 R16 13K C15 22µF 9 R16 13K C13 10µF R13 20K C11 330nF R15 10K C14 10µF R14 30K D5 1N4148 PLAY ST-BY 270 L1 1µH T1 BDX53A T3 BC394 D3 1N4148 R4 270 R5 270 T4 BC393 T5 BC393 R6 20K R7 3.3K C16 1.8nF R8 3.3K C17 1.8nF Z2 3.9V Z1 3.9V L2 1µH 270 D4 1N4148 D2 BYW98100 R1 2 R2 2 C9 330nF C10 330nF T2 BDX54A T6 BC393 T7 BC394 T8 BC394 R9 270 R10 270 R11 29K OUT IN C7 100nF C5 1000µF C8 100nF C6 1000µF C1 1000µF C2 1000µF C3 100nF C4 100nF +40V +20V D1 BYW98100 GND -20V -40V Figure 21. P.C.B. and components layout of the circuit of figure 18 (1:1 scale) TDA7294 Application information DS0013 - Rev 8 page 18/31 |
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