ksi-9039-002 1 a431xm pro g rammable volta g e reference features ? programmable output voltage to 20 volts ? sink current capability of 1.0ma to 100ma ? low dynamic impedance 0.15 ? typical ? temperature compensated for operation over full rated operating temperature ? equivalent full-range temperature coefficient of 50ppm/ c (typical) ? low output noise voltage ordering information type no. marking package code a431xm a431 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 pin connections 1. reference 2. anode 3. cathode functional block diagram 14.0 0.40 4.0 0.1 0.44 ref 0.52 ref 3.0 0.1 1.27 t yp . 2.54 0.1. 3.0 0.1 0.42 typ. 0.7 typ . 1 2 3 3.8 min.
ksi-9039-002 2 a431xm absolute maximum ratings (operating ambient temperature range applies unless other specified) parameter symbol ratings unit cathode to anode voltage v ka 20 v cathode current range(continuous) i k -100 ~+150 ma reference input current range(continuous) i ref -0.05~+10 ma power dissipation p d 500 mw operating temperature range t opr -40~+85 c storage temperature range t stg -65~+150 c recommended operating conditions ratings parameter symbol min. max. unit cathode to anode voltage v ka v ref 20 v cathode current range(continuous) i k 1.0 100 ma electrical characteristics (ambient temperature at 25 c, unless otherwise noted.) parameter symbol condition min. typ. max. unit A431BM 2.482 2.508 reference input voltage (fig. 1, note 1) v ref v ka =v ref , i k =10ma a431am 2.470 2.495 2.520 v deviation of reference input voltage over temperature(fig. 1, note 1,2) ? v ref v ka =v ref , i k =10ma @ta=t low to t high - 7.0 30 mv ratio of change in reference input voltage to the change in cathode voltage(fig. 2) ? v ref ? v ka i k =10ma ? v ka =10v-v ref ? v ka =20v-10v - - 1.2 0.7 2.7 2.0 mv/v reference input current(fig. 2) i ref i k =10ma r1=10k ? , r2= - 1.8 4.0 a deviation of reference input voltage over temperature(fig. 2) ? i ref i k =10ma r1=10k ? , r2= - 0.4 2.5 a minimum cathode current for regulation(fig. 1) i min v ka =v ref - 0.35 1.0 ma off-state cathode current(fig. 3) i off v ka =20v, v ref =0v - 2.7 1000 na dynamic impedance(fig. 1, note 3) z ka v ka =v ref , f 1.0khz i ka =1.0ma-100ma - 0.14 0.5 ? fig. 1 fig. 2 fig. 3 : t low =-40 c, t high =+85 c , : ? v ref = v ref max. - v ref min. , : z ka = ? v ka / ? i k
ksi-9039-002 3 a431xm characteristic diagrams fig. 6 ? v ref vs. t a fig. 7 gv vs. frequency fig. 8 pulse response fig. 5 i min vs. v ka fig. 4 i k vs. v ka
ksi-9039-002 4 a431xm these auk products are intended for usage in general electronic equipments(office and communication equipment, measuring equipm ent, domestic electrification, etc.). please make sure that you consult with us before you use these auk products in equipm- ents which require high quality and/or reliabi lity, and in equipments which could have major impact to the welfare of human life(atom ic energy control, airplane, spaceship, traffic signal, combustion central, all types of safety device, etc.). auk cannot accept liability to any damage which may occur in case these auk products were used in the mentioned equipments without prior consultation with auk.
|
