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SFH7740 Datasheet(PDF) 4 Page - OSRAM GmbH |
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SFH7740 Datasheet(HTML) 4 Page - OSRAM GmbH |
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4 / 14 page ![]() SFH 7740 2009-01-14 4 Kennwerte (Ta = 25°C) Characteristics Bezeichnung Parameter Symbol Symbol Wert Value Einheit Unit min. typ. max. Minimale Betriebsspannung für Startphase Minimum required supply voltage for start-up (please see figure 2) V dd, start 0.8 2.0 V Länge der Startphase Start up time (please see figure 2) t start 60 90 120 ms Mess-Wiederholzeit Measurement refresh time (please see figure 2) t refresh 60 90 120 ms LED „An“ Zeit LED „ON“ Time (please see figure 3) t pulse 30 45 60 µs Mittlere Stromaufnahme 1) Mean current consumption 1) R Prog = h, Vdd = 3V I dd, mean 25 50 μA Maximale Stromaufnahme Maximum current consumption R Prog = h, Vdd = 3V I dd, max 10 20 mA Mittlere Stromaufnahme 1) Mean current consumption 1) R Prog = 470 Ω, Vdd = 3V I dd, mean 45 75 μA Maximale Stromaufnahme Maximum current consumption R Prog = 470 Ω, Vdd = 3V I dd, max 50 65 mA Ausgangsleckstrom „high“ Output leakage current „high“ DV dd = 2.2V I out, H 5 400 nA Ausgangsspannung „low“ Output voltage „low“ DV dd = 2.2V; Rpullup = 270 Ω V out, L 0.1 0.5 V Wellenlänge der max. Fotoempfindlichkeit Wavelength of max. sensitivity λ S, max 880 nm |
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