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L99ASC03 데이터시트(PDF) 35 Page - STMicroelectronics |
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L99ASC03 데이터시트(HTML) 35 Page - STMicroelectronics |
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35 / 73 page ![]() DocID023504 Rev 7 35/73 L99ASC03 Electrical specifications 72 ICMPH Current comparator hysteresis 0.2 mA VDDFAIL VDD fail threshold VDD short to ground during startup 1.8 2 2.2 V tVDDFAIL VDD short to ground detection time VDD short to ground during startup 3.4 4.0 7.0 ms dVDD/dt dVDD/dt at regulator turn-on CCER = 680 nF; CELE =47 µF; I(VDD) = 10 mA. Slope from 0.5 V to 1 V and slope from 1 V to 0.9 * VDD. If current limitation is reached, the slope is controlled by the current limitation and output capacitor. 330 V/ms VDDso,max Maximum VDD output voltage at regulator turn-on CCER = 680 nF; CELE =47 µF; I(VDD) = 10 mA. Internal soft- start function 5.3 V PSRR(1) Power supply rejection ratio (specified by design) Vr = 0.5 Vpp; fr = 100 Hz; CCER = 680 nF 60 dB 1. Guaranteed by design. Table 14. Voltage regulator VDD (continued) Symbol Parameter Test condition Min. Typ. Max. Unit Table 15. NRES reset output (VDD supervision), NINT Symbol Parameter Test condition Min. Typ. Max. Unit VRT1 VDD reset threshold 1 VDD increasing; VDD_VTH = 0 3.55 3.7 3.85 V VDD decreasing; VDD_VTH = 0 3.15 3.3 3.45 V VRT1H VDD reset threshold 1 hysteresis 0.4 V VRT2 VDD reset threshold 2 VDD increasing; VDD_VTH = 1 4.45 4.65 4.8 V VVDD decreasing; VDD_VTH =1 4.4 4.6 4.75 V VRT2H VDD reset threshold 2 hysteresis 0.06 V VRESETL NRES pin low output voltage VDD >1 V; IRESET =1 mA 0.2 0.4 V RRESET NRES pull up internal resistor 60 110 204 k Ω tRR NRES reaction time At ILOAD =1 mA 20 µs tRP NRES pulse time 1.7 2 3.5 ms tVDDoff VDD turn-off time 200 ms tVDDUV VDD undervoltage filter time 13 28 µs tNINT NINT pulse time 56 µs |
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