ksd-i0b002-002 1 sl432xm programmable voltage reference ?? description the sl432 series are 3-terminal precision shunt regulators that are programmable over a wide voltage range of 1.24v to 16v with 0.5%, 1.0%, 2.0% tolerance. the sl432 series have a low dynamic impedance of 0.25 ? . these features make the sl432 series an excellent replaceme nt for zener diodes in numerous applications circuits that require a precision reference voltage. features ? programmable output voltage from 1.24v to 16v ? voltage reference tolerance : 0.5%, 1.0%, 2.0% ? cathode current capability of 80 ? to 30ma ordering information type no. marking package code sl432xm sl432 to-92m : grade => none:2% , a:1% , b:0.5% outline dimensions ( unit : mm ) s s e e m m i i c c o o n n d d u u c c t t o o r r symbol functional block diagram 1 2 3 3.90~4.10 2.90~3.10 14.00~15.00 0.62 max. 2.15 typ. 0.54 max. 1.27 typ. 1.27 typ. 2.20~2.40 0.45 max. pin connections 1. reference 2. anode 3. cathode ref reference(r) + - v ca thode (k) anode(a) =1.24v
ksd-i0b002-002 2 sl432xm absolute maximum ratings [ta=25 ] characteristic symbol rating unit cathode to anode voltage v ka 18 v cathode current i k 30 ma reference input current i ref 3 ma power dissipation p d 400 mw junction temperature t j 150 operating temperature range t opr -40 ~ +85 storage temperature range t stg -55 ~ +150 recommended operating conditions rating characteristic symbol min. max. unit cathode to anode voltage v ka v ref 16 v cathode current i k 0.1 25 ma electrical characteristics (ta=25 , unless otherwise noted.) characteristic symbol condition min. typ. max. unit sl432bm 1.234 1.246 sl432am 1.228 1.252 reference voltage (fig.1) v ref v ka =v ref , i k =10ma sl432m 1.215 1.240 1.265 v reference input voltage deviation over temperature (fig.1, note1,2) ? v ref v ka =v ref , i k =10ma @ -40 ? c ta 85 ? c - 10 20 mv ? v ref v ref =v ref(16v) -v ref ratio of delta reference input voltage to delta cathode voltage (fig.2) ? v ka i k =10ma vref v ka 16v v ka =v ka(16v) -v ref - -1.0 -2.7 mv/v reference current (fig.2) i ref i k =10ma r1=10k ? , r2= - 1.0 1.5 reference input current deviation over temperature (fig.2, note 1,2) ? i ref i k =10ma r1=10k ? , r2= @ -40 ? c ta 85 ? c - 0.04 0.08 minimum cathode current for regulation i k(min) v ka =v ref - 80 100 off-state cathode current (fig.3) i k(off) v ka =16v, v ref =0v - 5 50 na dynamic impedance (fig.1, note3) z ka v ka =v ref , f 1.0khz 0.1ma i k 25ma - 0.25 0.4 ?
ksd-i0b002-002 3 sl432xm 1 ref 2 1 ref ka r i + ) r r + 1 ( v = v note. 1. ambient temperature range: t low = -40 , t high = 85 2. the deviation parameters v ref and i ref are defined as the difference betwee n the maximum value and minimum value obtained over the full operating ambient temperature range that applied. the average temperature coefficien t of the reference input voltage, ref v is defined as: t ? ) 10 ) 25 = t ( v v ? ( = ) ppm ( v a 6 a ref ref ref ref v can be positive or negative depending on whether v ref min or v ref max occurs at the lower am bient temperature, refer to fig. 8 example : v ref = 10mv and the slope is positive, v ref @ 25 = 1.24v t a = 125 / ppm 65 = 125 10 ) 241 . 1 010 . 0 ( = ) ppm ( v 6 ref 3. the dynamic impedance z ka is defined as: k ka ka i ? v ? = when the device is operating with two external resistors, r1 and r2, (refer to fig.2) the total dynamic impedance of the circui t is given by: ) r r + 1 ( = 2 1 ka ' ka fig. 1 test circuit for v ka =v ref fig. 2 test circuit for v ka >v ref fig. 3 test circuit for i k(off) ? v ref = v ref max ? v ref min ? t a = t 2 ? t 1 ambient temperature ka input r1 r2 v v ka input i k(off) i ref i k ka v input i k
ksd-i0b002-002 4 sl432xm electrical characteristics curves (continue) cathode voltage v ka [v] 0.0 20 0.1 0.3 0.2 0 16 8 0.4 off-state cathode current i k(off) [a] 12 4 v ref =0v, ta=25c 2.0 cathode current i ka [ a] 0 0 0.5 1.0 300 50 -0.5 -1 1.5 250 200 - 50 150 100 -10 fig.4 i k vs v ka (1) fig.5 i k vs v ka (2) fig.6 i k(off) vs v ka i 20 1.5 10 - 10 1.0 cathode current i k [ma] 0 cathode voltage v ka [v] 2.0 0.5 -0.5 -1 0 30 v ka =v ref ta=25c cathode voltage v ka [v] v ka =v ref ta=25c fig.8 v ref vs t a 50 0 1.30 -25 1.26 75 25 100 1.28 1.22 1.24 1.20 -50 reference input voltage v ref [v] ambient temperature t a [ ? c] v ka =v ref , i k =10ma v ref(min) v ref(typ) v ref(max) fig.7 v ref / v ka vs t a 50 0 0.0 -25 -0.2 75 25 100 -0.1 -0.4 -0.3 -0.5 -50 ratio of delta reference input voltage to delta cathode voltage v ref / v ka [mv/v] ambient temperature t a [ ? c] v ref v ka 16v, i k =10ma fig.9 p d vs t a ambient temperature t a [ ? c] 100 50 500 25 300 125 75 150 400 100 200 0 0 power dissipation p d [mw]
ksd-i0b002-002 5 sl432xm electrical characteristics curves unstable regions v ka r 1 [k ? ] r 2 [k ? ] a, b v ref 0 a 10v 10 1.415 r2 cl 0 gnd r1 output the auk corp. products are intended for the use as components in general electronic equipment (office and co mmunication equipment, m easuring equipment, home appliance, etc.). please make sure that you consult with us before you use these auk corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to th e welfare of human life(atomi c energy control, airplane, spaceship, transportation, co mbustion control, all types of safety device, etc.). auk corp. cannot accept liability to any damage which may occur in case these auk corp. products were used in the mentioned equi pments without prior consultation with auk corp.. specifications mentioned in this publicati on are subject to change without notice. fig.10 stability boundary conditions i k fig.11 test circuit for fig. 10 ? ?
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