features ? bipolar ic with open-collector output ? digital output, ttl compatible ? sensitive in visible and near ir range ? low switching threshold ? transfer rate f 5 mbit/s ? 2.2 mm aperture holds standard 1000 micron plastic fber ? no fber stripping required ? molded microlens for efcient coupling plastic connector housing ? mounting screw attached to the connector ? interference-free transmission from light-tight housing ? transmitter and receiver can be fexibly positioned ? no cross talk ? auto insertable and wave solderable ? supplied in tubes applications ? household electronics ? power electronics ? optical networks description the sfh551/1v is a transimpedance amplifer with digital ttl open collector output stage and integrated photodi - ode. the active area of the detector in connection with the molded microlens gives an efcient coupling from the end of a plastic fber. the receiver is fully dc coupled and therefore no line code is needed. the sfh551/1v includes a schmitt trigger function to provide stable output states over the whole dynamic range. for optical input power levels above 6 w typically the electrical output will be logical low and vice versa. with noise free vcc and gnd no undefned output signal is possible. sfh551/1 must not be used without shielding the ambient light, because ambient light causes malfunc - tion when reaching the threshold level, noise or complete switching the output. interference free transmission is possible by using the sfh551/1v with the black plastic connector housing. sfh551/1-1 sfh551/1-1v integrated photo detector receiver for plastic fiber plastic connector housing data sheet ordering information type ordering code sfh551/1-1 sp000063860 sfh551/1-1v sp000063855
v cc r pullup data-out gnd figure 1. block diagram a bypass capacitor (100 nf) near the device (distance 3 cm) is necessary between ground and v cc . in critical applica - tions the distance may be shorter. technical data absolute maximum ratings parameter symbol limit values unit min. max. operating temperature range t op C40 +85 c storage temperature range t stg C40 +100 c soldering temperature( mm from case bottom, t 5 s) t s 60 c supply voltage range without damage v cc C0.5 15 v recommended and guaranteed maximum voltage 5.5 v minimum supply voltage for function v ccmin 4 v minimum pull-up resistance(v cc = 5 v) r outmin 330 output voltage v 0 C0.5 15 v output current i 0 50 ma power dissipation (output) p 0 100 mw characteristics (t a = 25 c, v cc = 4.75 to 5.25 v) parameter symbol values unit min. typ. max. maximum photosensitivity wavelength smax 700 nm photosensitivity spectral range (s = 80% s max ) 600 780 nm sfh551/1-1 opticalthreshold power ( = 660nm) for output low inth 6 C w dbm maximum optical power ( = 660 nm) maximum value of tplh at maximum power inl 1000 0 w dbm optical power for output high without errors ( = 660nm) inh 0.1 C40 w dbm propagation delay (optical input to electrical output, with fast optical pulse) t phl t plh < 100 < 50 ns current consumption (without output current) i cc 4 ma
3 dimensions in mm dimensions in m m package outlines figure 2. sfh551/1-1 figure. 3. sfh551/1-1v
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