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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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L6984 Fiches technique(PDF) 21 Page - STMicroelectronics |
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L6984 Fiches technique(HTML) 21 Page - STMicroelectronics |
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21 / 34 page  DocID025378 Rev 3 21/34 L6984 Device description 34 Figure 14. Valley current sense implements constant current protection 3.7 PGOOD The internal circuitry monitors the regulated output voltage and keeps the PGOOD open collector output in low impedance as long as the feedback voltage is below the VPGD L threshold (see Table 5). Figure 15. PGOOD behavior during soft-start time The PGOOD is driven low impedance if VFB = VCC (internal voltage divider, see Section 3.1 on page 12) and VBIAS > VPGD H threshold (see Table 5 on page 7). The VPGD H threshold has no effect on PGOOD behavior in case the external voltage divider is being used. |
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