? e60142d5x-te sony reserves the right to change products and specifications without prior notice. this information does not convey any license by any implication or otherwise under any patents or other right. application circuits shown, if any, are typical examples illustrating the operation of the devices. sony cannot assume responsibility for any problems arising out of the use of these circuits. absolute maximum ratings (ta=25 ?) supply voltage v cc 10 v operating temperature topr ?0 to +100 ? storage temperature tstg ?0 to +125 ? recommended operating supply voltage 5v description the DM-106B is a highly sensitive magneto- resistance element composed of an evaporated ferromagnetic alloy on a silicon substrate. (the element can be used for automatic shut off of tape recorders, as a contactless switch, and as a general detector of rotational motion.) features low power consumption 11 mw (typ.) v cc =5 v low magnetic field and high sensitivity 80 mvp-p (typ.) v cc =5 v h=8000 a/m high reliability ensured through silicon nitride protective filming structure thin-film nickel-cobalt magnetic alloy on silicon substrate magnetoresistance element m-110 (plastic) electrical characteristics (ta=25 ?) DM-106B item symbol condition min. typ. max. unit total resistance midpoint potential output voltage r t v c v o vcc=5 v , h=8000 a/m revoiving magnetic field vcc=5 v , h=8000 a/m revoiving magnetic field vcc=5 v , h=8000 a/m revoiving magnetic field 1.4 2.45 60 2.3 2.50 80 3.7 2.55 k v mvp-p
? DM-106B equivalent circuit introduction 1. power supplying pin output pin 2. sensitive direction vs. midpoint potential r a : resistance reduces as the magnetic field revolves. r b : resistance increases as the magnetic field revolves. r a r b 1 23 r a r b 1 2 3 max min h q r a r b 1 2 3 1 2 3 106 b v cc c d b a e a b c d e direction of magnetic-flux incidence sensitive non-sensitive direction of magnetic-flux incidence midpoint potential h s v cc 2 h useful region changes occur to the output voltage at the saturation region of v-h curve according to the direction of magnetic flux. these changes provide for the operation. ?with one rotation of magnetic flux, signals for 2 periods are obtained.
? DM-106B applications 1. detection of revolution 2. position detecting 3. bridge circuits notes on application ?execute the solder to the lead line within 10 seconds at a temperature below 260 ?to fix the elements : when glue is used, do not apply mechanical stress to the elements. n s n n s s s n s n s n v cc r 1 r 2 aa aa differenntial amplifier s n circuits output 106 a a a a a a a a b a a a a a a a a a a a a 106 b aa aa aa aa a a a a a a a a a a a aa a a by coupling 2 pieces back to back and sticking them together in a gridge, the output voltage is doubled.
? DM-106B midpoint potential vs. magnetic field intensity 4000 12000 0 2.45 2.46 2.47 v c -midpoint potential (v) h-revolving magnetic field intensity (a/m) 2.48 2.49 2.50 2.51 2.52 2.53 2.54 2.55 v cc =5v 106b gnd v cc 106b gnd v cc 8000 16000 midpoint potential vs. direction of magnetic-flux incidence 0 2.45 2.46 2.47 v c -midpoint potential (v) q -direction of magnetic-flux incidence (deg) 2.48 2.49 2.50 2.51 2.52 2.53 2.54 2.55 1. v cc =5v h=12000a/m 2. output 3. gnd 45 90 135 180 225 q 106b 3 2 1 h output voltage vs. magnetic field intensity 12000 16000 0 20 v o -output voltage (mvp-p) h-revolving magnetic field intensity (a/m) 40 60 80 100 v cc =5v 0 4000 8000 total resistance, output voltage vs. temperature 50 60 v o -output voltage (mvp-p) ta-ambient temperature (?) 70 80 90 100 110 120 h=8000a/m (revolving magnetic field) v cc =5v ?0 ?5 0 25 50 75 100 125 150 r t v o 1.5 2.0 2.5 3.0 r t -total resistance (k w ) derating curve 80 120 ?0 1 i in -input current (ma) ta-ambient temperature (?) 2 3 4 5 v cc =10v 0 0 40 160
? 1.2 0.1 2.0 0.2 0.25 0.1 sony code eiaj code jedec code package weight m-110 m-110 4.0 0.2 0.4 0.5 1.8 0.8 0.7 0.5 0.8 0.6 0.4 1.27 1.27 12 min 3.0 0.2 0.09g package outline unit : mm DM-106B
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