unisonic technologies co., ltd ua7524 linear integrated circuit www.unisonic.com.tw 1 of 5 copyright ? 2011 unisonic technologies co., ltd qw-r114-002.ea power factor controller ? description the utc ua7524 provides the necessary features to implement the electronic ba llast control and s.m.p.s application for designing active power factor correction circuit ? features * internal self-starting * micro power start up mode * included under voltage lockout circuit * internal 2% reference * high output current: peak 500ma dip-8 sop-8 ? ordering information ordering number package packing lead free halogen free ua7524l-d08-t ua7524g-d08-t dip-8 tube UA7524L-S08-R ua7524g-s08-r sop-8 tape reel ua7524l-s08-t ua7524g-s08-t sop-8 tube
ua7524 linear integrated circuit unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r114-002.ea ? block diagram - - + +
ua7524 linear integrated circuit unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r114-002.ea ? absolute maximum ratings (t a = 25 ) parameter symbol ratings unit supply voltage v cc 20 v peak driver output current i o ( peak ) 500 ma detect clamping diode current i det 10 ma output clamping diode current i o ( cd ) 10 ma junction temperature t j +125 c operating temperature t opr -20~+85 c storage temperature t stg -40~+150 c note 1. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only an d functional device operat ion is not implied. 2. the device is guaranteed to meet performance specification within 0 ~+70 operating temperature range and assured by design from -20 ~+85 . ? electrical characteristics (t a = 25 , all voltage referenced to gnd, unless otherwise specified) parameter symbol test conditions min typ max unit under voltage lockout section start threshold voltage v thr ( st ) 9.2 10 10.8 v uv lockout hysteresis v hys ( uv ) 1.8 2.0 2.2 v supply zener voltage v z 17 v supply current section start-up supply current i start v cc ua7524 linear integrated circuit unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r114-002.ea ? electrical characteristics(cont.) parameter symbol test conditions min typ max unit input low clamp voltage v ic ( l ) i det =0ma 0.95 v input high clamp voltage v ic ( h ) i det =3ma 6.1 7.1 v input current i in 0.8v6v 3 ma output section output voltage(high) v o ( h ) i out =-10ma,v cc =12v 7 9 v output voltage(low) v o ( l ) i out =10ma,v cc =12v 0.8 1.8 v rising time t r c l =1000pf 100 200 ns failing time t f c l =1000pf 90 200 ns self-start section self starting time t ss 12 s note: 1. reference can not be tested on the pkg 2. g v =v o(m) /(v i(m1) *(v i(m2) -v ref ))
ua7524 linear integrated circuit unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r114-002.ea ? application circuit h n f.g 5 7 2 1 4 8 3 6 2a tnr c1 l1 r3 c2 c4 c3 ntc r1 r4 d1 r5 c5 t1 q1 d2 r6 r7 r8 r9 r10 r11 r12 vr1 c6 c7 r2 c10 c11 t2 diac d9 q2 d6 d4 r19 d8 c15 c13 c12 d7 c14 l2 l3 d5 q3 d3 r17 r16 t2 r14 bdi r18 t2 lamp tube 1 c9 c8 r13 lamp tube 1 part list resistor capacitor semiconductor magnetics r1 1.8m c1 0.1 f ic1 utc ua7524 t1 e1-25(pc30):p=70t,s=4t,gap=0.5mm r2 10k c2 0.1 f q1 irf830 t2 d15(gp-5):p=3t,s=13t r3 100k c3 4700pf q2 2sc5039 l1 ee-25(iron power),80mh r4 3.3 ? c4 4700pf q3 2sc5039 l2 ei-25(pc30):150t,gap=0.4mm r5 22k c5 0.1 f d1 1n4004 r7 2.2k c6 0.01 f d2 1n4937 r8 2.2m c7 100 f d3 1n4148 r9 150k c8 0.1 f d4 1n4148 r10 330 ? c9 3300pf d5 fr107 r11 0.75 ? c10 47 f/450v d6 fr107 r12 5.1k c11 0.1 f d7 fr107 r13 1m c12 3300pf d8 fr107 r14 390k c13 3300pf bd1 pbp204 r15 3.9m c14 0.01 f tnr 12g471 r16 5.1 c15 0.01 f diaic 32v r17 27 r18 5.1 r19 27 vr1 5k ntc 10 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 expec ted 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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