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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PM6681ATR датащи(PDF) 41 Page - STMicroelectronics |
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PM6681ATR датащи(HTML) 41 Page - STMicroelectronics |
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41 / 47 page  PM6681A Design guidelines 41/47 (Let's assume Tmax = 75 °C in RDS(on) calculation) 9.8.5 Input capacitor Maximum input capacitor RMS current is about 1.1 A. Then ICinRMS > 1.1 A We can put two 10 µF ceramic capacitors with I rms = 1.5 A. 9.8.6 Synchronous rectifier OUT1: Schottky diode STPS1L40M OUT2: Schottky diode STPS1L40M 9.8.7 Integrator loop (Refer to Figure 40) OUT1: The ripple is smaller than 40mV, then the virtual ESR network is required. CINT = 1 nF; Cfilt = 47 pF; RINT = 1 kΩ C = 5.6 nF; R = 36 k Ω; R1 = 3 kΩ OUT2: The ripple is smaller than 40mV, then the virtual ESR network is required. CINT = 1 nF; Cfilt = 110 pF; RINT = 1 kΩ C = 5.6 nF; R = 22 k Ω; R1 = 3.3 kΩ 9.8.8 Output feedback divider (Refer to Figure 32) OUT1: R1 = 10 k Ω; R2 = 6.8 kΩ OUT2: R1 = 11 k Ω; R2 = 1.8 kΩ Ω ≈ Ω ⋅ µ ≡ 680 m 25 . 16 A 100 A 2 . 4 RCSENSE |
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