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L6598D データシート(PDF) 8 Page - STMicroelectronics |
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L6598D データシート(HTML) 8 Page - STMicroelectronics |
8 / 16 page L6598 8/16 Start Timing Constant) is 0.15 s/ µF. The current Iosc is fed to the oscillator as shown in fig. 5. It is twice mirrored (x4 and x8) generating the triangular wave on the oscillator capacitor Cf. Referring to the internal structure of the oscillator (fig.5), a good relationship to compute an approximate value of the oscillator frequency in normal operation is: [7] The degree of approximation depends on the frequency value, but it remains very good in the range from 30kHz to 100kHz (figg.6-10) Figure 5. Oscillator Block fmin 1.41 R fminCf -------------------- = X8 X4 Iosc Vth+ Vth- S R Cf + + |
同様の部品番号 - L6598D |
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同様の説明 - L6598D |
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