technical data KK432 low voltage adjustable precision shunt regulator features: ? precise reference vo ltage to 1.24 v ? guarante ed 1% reference volta ge tolerance ? sink current capabilit y, 80 a to1 00ma ? quick turn-on ? adjustable output voltage, v o =v ref to 15v ? 0.2 ? typical output impedance applications ? linear regulator ? adjustable supplies ? switching power supp lies ? battery ch arger ? instrumentation ? computer disk drives block diagram 1
KK432 absolute maximum ratings sy m b o l p a r a m e t e r sy mbol ra t i n g u n i t pad # desc rip t io n v ka catho de voltage v ka 1 8 v 1 r e f i k contin uou s cathode cu rre nt ran ge i k 1 0 0 m a 2 ano d e i ref refe ren c e cu rre nt ran ge i ref 3 m a 3 c a t h o d e tj ope r ating ju nction tempe r atu r e ran ge tj - 40 to 150 c electrical characteristics t a = 25c ( unless otherw ise noted) KK432 sy mbol parameter test conditi ons m i n t y p m a x unit v rff refe ren c e vo ltage v ka = v ref , l k =10ma (fig. 1) t a =25 c 1.228 1 . 2 4 0 1 . 2 5 2 v v dev v ref temp deviation t a = f u ll r a ng e(s e e n o te 1) v ka = v ref , l k =10ma(fig. 1 ) 1 0 2 5 mv ? v ref / ? v ka ratio of ch an ge in v ref to cha nge in ca thode voltage ! k =10ma, v ka = 15v to v ref (fig. 2) - 1 - 2 . 7 mv / v i ref refe ren c e in put cu rre nt i k =10ma, r 1 =10 k ? r 2 = (fig.2 ) 0 . 5 1 . 0 a i ref(d ev) i ref temp deviation t k =full ran ge (see note 1), r 1 =10k ? , r 2 = , i k =10ma (fig. 2) 0 . 0 5 0 . 3 a ik(off) off-state cath ode current v ref =0 v,(fig.3) v k =15v 0 . 0 4 0 . 5 a zka dynami c out put impeda nce v ka =v ref , i k =1ma to 100ma f 1khz (fig. 1) 0 . 2 0 . 4 ? i k ( min ) minimum o p eratin g cu rre nt v ka =v ref (fig. 1) 6 0 8 0 a notes: 1. full temperature rang e is -40 c to 105 c for kk 432 2
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