unisonic technologies co., ltd t78041 linear integrated circuit www.unisonic.com.tw 1 of 5 copyright ? 2012 unisonic technologies co., ltd qw-r121-010,b vertical deflection output circuit ? description the utc t78041 is a monolithic integrated ic and designed for high-definition tv and crt displays in systems that use a bus control system signal-processing ic. it is intended to directly drive the deflection coil. besides, it offe rs a maximum deflection current of 2.2a peak to peak to suitable for large diameter crts. ? features * low power operation achieved by using integrated charge pump circuit. * vertical output circuit. * thermal protection circuit. * excellent crossove r characteristics. * supports dc coupling. ? ordering information ordering number package packing lead free halogen free t78041l-tb7-t t78041g-tb7-t to-220z7 tube
t78041 linear integrated circuit unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r121-010,b ? pin configurations ? block diagram 7 2 6 3 5 1 flyback generator 4 - + thermal protection power amplifier
t78041 linear integrated circuit unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r121-010,b ? absolute maximum ratings parameter symbol ratings unit supply voltage (pin 2 to pin4) v cc 2 34 v output supply voltage (pin 6 to pin4) v cc 6 70 v output peak current i 5 -1.5~1.5 a power dissipation p d 9 w junction temperature t j 150 operating temperature t opr -20~+85 storage temperature t stg -40~+150 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 oper ation is not implied. ? theraml data parameter symbol ratings unit junction to case jc 3.0 c/w ? electrical characteristics (t a =25 , v cc =24v, unless otherwise specified) parameter symbol test conditions min. typ. max. unit supply voltage v cc 16 24 33 v quiescent current i q 35 - 65 ma recommend biggest peak to peak deflect current i 5 2.2 a output saturated voltage to gnd v 5l i 5 =1.1a 1.5 v output saturated voltage to supply v 5h i 5 =-1.1a 3.5 v pin 3 saturation voltage to gnd v 3l i 3 =20ma 1.8 v pin 3 saturation voltage to gnd (return to sweep the second part) v 3(2) i 3 =-1.1a 3.2 v output middle point voltage v o(mid) 11 12 13 v thermal shutdown temperature 150
t78041 linear integrated circuit unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r121-010,b ? application circuit ac application (single power supply) +v cc 7 2 6 3 5 1 flyback generator 4 - + thermal protection power amplifier deflection coil c f r3 300 0.47 0.22 f r4 r5 r2 c l c s + - v ref 2.2v r1 dc application (double power supply) +v cc 7 2 6 3 5 1 flyback generator 4 - + thermal protection power amplifier deflection coil c f r3 300 0.47 0.22 f r2 v ref + r1 -v ee v ref - field the position adjust
t78041 linear integrated circuit unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r121-010,b utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, oper ating 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 lif e support appliances, devices or systems where malfunction of these products can be reasonably expe cted to result in personal injury. reproduction in whole or in part is prohibited without the prior writ ten 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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