technical data 1 low voltage adjustable precision shunt regulator pin connections cathode anode reference features ? precise reference voltage to 1.24v ? guaranteed 1% reference voltage tolerance ? sink current capability, 80 a to100ma ? quick turn-on ? adjustable output voltage, v o =v ref to 15v ? 0.2 typical output impedance applications ? linear regulator ? adjustable supplies ? switching power supplies ? battery charger ? instrumentation ? computer disk drives TL432 block diagram
TL432 2 absolute maximum ratings symbol parameter symbol rating unit pad # description v ka cathode voltage v ka 18 v 1 ref i k continuous cathode current range i k 100 ma 2 anode i ref reference current range i ref 3 ma 3 cathode tj operating junction temperature range tj - 40 to 150 c electrical characteristics t a = 25c ( unless otherwise noted) TL432 symbol parameter test conditions min typ max unit v rff reference voltage v ka = v ref , l k =10ma (fig. 1) t a =25c 1.228 1.240 1.252 v v dev v ref temp deviation t a =full range(see note1) v ka = v ref , l k =10ma(fig. 1) 10 25 mv v ref / v ka ratio of change in v ref to change in cathode voltage ! k =10ma, v ka =15v to v ref (fig. 2) -1 -2.7 mv / v i ref reference input current i k =10ma, r 1 =10k r 2 = (fig.2) 0.5 1.0 a i ref(dev) i ref temp deviation t k =full range (see note 1), r 1 =10k , r 2 = , i k =10ma (fig. 2) 0.05 0.3 a ik(off) off-state cathode current v ref =0 v,(fig.3) v k =15v 0.04 0.5 a zka dynamic output impedance v ka =v ref , i k =1ma to 100ma f 1khz (fig. 1) 0.2 0.4 i k ( min ) minimum operating current v ka =v ref (fig. 1) 60 80 a notes: 1. full temperature range is -40c to 105c for TL432
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TL432 package dimensions to-92 6
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