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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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ST6240B Scheda tecnica(PDF) 53 Page - STMicroelectronics |
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ST6240B Scheda tecnica(HTML) 53 Page - STMicroelectronics |
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53 / 76 page  53/76 ST62T40B/E40B POWER SUPPLY SUPERVISOR (Continued) 4.6.1 PSS Operating Mode Description The resistive voltage divider connected to the PSS pin provides the internal comparator with the nxVPSS/13 voltage. The resistive voltage divider connected to the VDD pin provides the internal comparator with the mxVDD/13 voltage. The n and m values are selected with the PSS register. It must be observed that the n and m values must be selected, taking into consideration the following electrical constraints: 0.5V < nxVPSS/13 at detection < VDD -2V 0.5V < mxVDD/13 at detection < VDD -2V we must also have: VDD ≤ VPSS ≤ VDD The PIF bit is the interrupt request flag of the PSS device. This bit follows PSS comparator output. Figure 33. Typical application using the PSS m n ---- VDD VIN PSS VSS L48xx VR01837 625 |
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