unisonic technologies co., ltd 79dxxaa linear integrated circuit www.unisonic.com.tw 1 of 4 copyright ? 2013 unisonic technologies co., ltd qw-r101-042.b 3 terminal 1.5a negative voltage regulator ? description the utc 79dxxaa series of three-terminal negative regulators is available several fi xed output voltage, making them useful in a wide range of applicatio n. each type employs internal current limiting, thermal shut -down, making it essentially indestructible. ? features * output current up to 1.5a * -5v, -12v output voltage available * thermal overload protection ? nordering informatio ordering number package pin assignment packing lead free halogen free 1 2 3 79dxxaal-tm3-t 79dxxaag-tm3-t to-251 g i o tube 79dxxaal-tn3-t 79dxxaag-tn3-t to-252 g i o tube 79dxxaal-tn3-r 79dxxaag-tn3-r to-252 g i o tape reel note: pin assignment : g: g nd i: input o: output
79dxxaa linear integrated circuit unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r101-042.b ? marking information package voltage code marking to-251 to-252 05: - 5v 12:-12v ? block diagram voltage reference protection circuitry gnd output input rsc r 2 r 1 fig.1
79dxxaa linear integrated circuit unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r101-042.b ? absolute maximum ratings (t a =25 ? c) parameter symbol rating unit input voltage v in -35 v output current i out 1.5 a power dissipation p d internally limited w operating temperature t opr 0 ~ +125 ? c storage temperature t stg -65 ~ +150 ? c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device operation is not implied. ? thermal data parameter symbol rating unit junction to ambient ja 112 ? c/w junction to case jc 12.5 ? c/w ? electrical characteristics (i out =0.5a, t j =0 ? c~125 ? c, c i =2.2uf, c o =1uf, unless otherwise specified) for utc 79D05AA (v in =-10v) parameter symbol test conditions min typ max unit output voltage v out t j =25 ? c -4.80 -5.0 -5.20 v v in =-7v~-20v i out =5ma~1.5a, p d Q 15w -4.75 -5.25 v dropout voltage v d i out =1.5a t j =25 ? c 2 v line regulation ? v out v in =-7v~-25v t j =25 ? c 10 100 mv v in =-8v~-12v t j =25 ? c 4 50 mv load regulation ? v out i out =5ma~1.5a t j =25 ? c 10 100 mv i out =250ma~750ma t j =25 ? c 3 50 mv quiescent current i q t j =25 ? c 3 6 ma output noise voltage en f=10hz~100khz t a =25 ? c 100 v output voltage drift ? v out / ? ti out =5ma -0.4 mv/ ? c ripple rejection rr v in =-8v~-18v, f=120hz 54 60 db peak current i peak t j =25 ? c 2.2 a for utc 79d12aa (v in =-18v) parameter symbol test conditions min typ max unit output voltage v out t j =25 ? c -11.52 -12.0 -12.48 v v in =-14.5v~-27v, i out =5ma~1.5a, p d Q 15w -11.40 -12.60 v dropout voltage v d i out =1.5a t j =25 ? c 2 v line regulation ? v out v in =-14.5v~-30v t j =25 ? c 12 240 mv v in =-16v~-22v t j =25 ? c 6 120 mv load regulation ? v out i out =5ma~1.5a t j =25 ? c 12 240 mv i out =250ma~750ma t j =25 ? c 4 120 mv quiescent current i q t j =25 ? c 3 6 ma output noise voltage en f=10hz~100khz t a =25 ? c 200 v output voltage drift ? v out / ? t i out =5ma -0.8 mv/ ? c ripple rejection rr v in =-15v~-25v, f=120hz 54 60 db peak current i peak t j =25 ? c 2.2 a
79dxxaa linear integrated circuit unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r101-042.b ? application circuits utc 79dxxaa 3 1 2 c o 1 f c i 2.2 f -v in -v out fig.1 fixed output regulator utc 79dxxaa 1 23 c i 2.2 f c 3 2.5 f c o 1 f -v out -v in r 1 r 2 fig.2 circuit for increasing output voltage 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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