unisonic technologies co., ltd tl432c linear integrated circuit www.unisonic.com.tw 1 of 3 copyright ? 2011 unisonic technologies co., ltd qw-r103-022.g 1.24v precision adjustable shunt reference regulators ? description the utc tl432c is a three-terminal adjustable shunt regulator highly accurate 1.24v band gap reference with 1%, 2% tolerance. the device offers thermal stability, wide operating current (50ma) and an exten ded temperature range of 0 to 85c for operation in power supply applications. the utc tl432c offers a wide operating voltage range of up to 12v and is an excellent choice for voltage refer ence requirements in an isolated feedback circuit for 3.0v ~ 3.3v switching mode power supplies. the tight tolerance guarantees a lower design cost for the power supply manufacturer by virtually eliminating the need for an extra power supply manufacturing process of the power supply. ? features *temperature-compensated: 50ppm/c *internal amplifier with 50ma capability *nominal temperature range extended to 85c *low frequency dynamic output impedance:<150m ? *low output noise ? ordering information ordering number pin assignment lead free halogen free 1 2 3 4 5 6 7 8 package packing tl432cl-ab3-r tl432cg-ab3-r r a k - - - - - sot-89 tape reel tl432cl-ae3-r tl432cg-ae3-r k r a - - - - - sot-23 tape reel tl432cl-af5-r TL432CG-AF5-R x x k r a - - - sot-25 tape reel tl432cl-t92-b tl432cg-t92-b r a k - - - - - to-92 tape box tl432cl-t92-k tl432cg-t92-k r a k - - - - - to-92 bulk tl432cl-s08-r tl432cg-s08-r kaaxxaar sop-8 t ape reel note: pin code: c: cathode a: anode r: reference x: no connection
tl432c linear integrated circuit unisonic technologies co., ltd 2 of 3 www.unisonic.com.tw qw-r103-022.g ? marking information package marking sot-23 432c 1 2 3 l: lead free g: halogen free sot-25 5 4 3 432c 21 l: lead free g: halogen free ? block diagram 1.24v cathode(k) anode(a) reference(r) + - + -
tl432c linear integrated circuit unisonic technologies co., ltd 3 of 3 www.unisonic.com.tw qw-r103-022.g ? absolute maximum ratings parameter symbol ratings unit cathode-anode reverse breakdown v ka 15 v anode-cathode forward current i ak 1 a operating cathode current i ka 50 ma reference input current i ref 1 ma junction temperature t j 125 c operating temperature t opr -40 ~ +85 c storage temperature t stg -40 ~ +150 c note: absolute maximum ratings are those values be yond which the device coul d be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? recommended operating conditions parameter symbol ratings unit cathode voltage v ka v ref ~ 15 v cathode current i k 5 ~ 10 ma ? thermal data parameter symbol rating unit sot-23/sot-25 350 c/w to-92 100 c/w sop-8 150 c/w junction to ambient sot-89 ja 220 c/w ? electrical characteristics (t j =25c , v ka =v ref, i k =10ma, unless otherwise specified.) parameter symbol test conditions min typ max unit 1% 1.228 1.240 1.252 v reference input voltage 2% v ref i k =10ma, v k =v ref 1.215 1.240 1.265 v line regulation v ref v k =1.24 ~ 15v 10 26 mv load regulation v ref i k =5 ~ 50ma 6 15 mv temperature deviation v ref -40 < t j < 85c 2 6 mv reference input current i ref 3 6 a reference input current temperature coefficient i ref -40 < t j < 85c 0.3 0.6 a minimum cathode current for regulation i k(min) 0.6 1 ma off state leakage i ka(off) v ref =0v, v ka =15v 500 na utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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