DM431DM431a DM431b integrated circuit r dc components co., ltd. technical specifications of adjustable shunt regulator features * programmable output voltage * temperature coefficient is 50ppm/ oc typical * temperature compensated for operation over * full temperature range * low output noise voltage * fast turn on response pinning 1 = reference 2 = anode 3 = cathode characteristic symbol rating unit cathode to anode voltage vka 37 v cathode current range(continuous) ik -100 to +150 ma reference input current range iref +0.05 to +10 ma power dissipation pd 770 mw operating temperature range topr 0 to +70 oc storage temperature range tstg -55 to +150 oc absolute maximum ratings(operating temperature range applies, unless otherwise specified) characteristic symbol min typ max unit test conditions DM431 2.440 2.495 2.550 reference input voltage DM431a vref 2.470 2.495 2.520 v vka=vref, ik=10ma DM431b 2.480 2.495 2.510 reference input voltage deviation dvref - 4.0 17 mv vka=vref, ik=10ma over temperature range tmin ta tmax ratio of change in reference input voltage dvref / - -1.4 -2.7 mv/v ik=10ma, dvka=10v-vref to change in cathode to anode voltage dvka - -1.0 -2.0 ik=10ma, dvka=36v-10v reference input current iref - 2.0 4.0 ma ik=10ma, r1=10kw, r2= reference input current deviation diref - 0.4 1.2 ma ik=10ma, r1=10kw, r2= over temperature range tmin ta tmax minimum cathode current for regulation ik(min) - 0.4 1.0 ma vka=vref off-state cathode current i k(off) - 0.1 1.0 ma vka =36v, vref=0 dynamic impedance zka - 0.2 0.5 w vka=vref, f 1.0khz ik=1 to 100ma electrical characteristics(ratings at 25 oc ambient temperature unless otherwise specified) sot-89 dimensions in inches and (millimeters) .063(1.60).055(1.40) .066(1.70).059(1.50) .167(4.25).159(4.05) .016(0.41).014(0.35) .120(3.04) .117(2.96) .181(4.60).173(4.40) .060(1.52).058(1.48) .020(0.51).014(0.36) .102(2.60).095(2.40) 1 2 3
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