unisonic technologies co., ltd fc8779 preliminary cmos ic www.unisonic.com.tw 1 of 4 copyright ? 2013 unisonic technologies co., ltd qw-r502-981.a silicon monolithic integratde circuit ? description single-phase full-wave motor driver for fan motor. ? features * soft switched drive * built-in lock protection and auto restart function * fg output * include hall bias circuit * thermal shut-down circuit ? ordering information ordering number package packing lead free halogen free fc8779l-sm1-r FC8779G-SM1-R msop-8 tape reel
fc8779 preliminary cmos ic unisonic technologies co., ltd 2 of 4 www.unisonic.com.tw qw-r502-981.a ? pin configuration 1 2 3 4 8 7 6 5 out2 h+ hb h- gnd out1 v cc fg fc8779 ? pin description pin no pin name description 1 out2 h-bridge output connection. 2 h+ hall input+ 3 hb hall bias 4 h- hall input- 5 fg fg signal output terminal 6 v cc supply voltage 7 out1 h-bridge output connection. 8 gnd power gnd. ? block diagram osc lock detection hall bias 500 150k + - + - control tsd + - hb h- h+ gnd v cc out2 out1 fg 500 150k
fc8779 preliminary cmos ic unisonic technologies co., ltd 3 of 4 www.unisonic.com.tw qw-r502-981.a ? absolute maximum rating parameter symbol ratings unit supply voltage v cc 7 v power dissipation (note 2) p d 585 mw output current (note 3) i oma x 1000 ma fg signal output ifg 5 ma fg signal output voltage vfg 7 v operating temperature t opr -40~+105 c storage temperature t stg -55~+150 c junction temperature t jma x 150 c notes: 1. 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. 2. to use at temperature above t a =25c reduce 4.68mw/c (on 70.00 mm1.6mm glass epoxy board). 3. this value is mot to be over pd, v cc =4.0v~6.0v at v cc =2.2v~4.0v, output current tolerance reduces. ? operating conditions parameter symbol ratings unit operating supply voltage range v cc 2.2~6.0 v hall input voltage range vh 0.4~v cc -1.1 v notes: 1. this product is not designed for production against radioactive rays. 2. this document may be strategi c data subject to cocom regulations. ? electrical characteristics (unless otherwise specified t a =25c, v cc =5v) parameter symbol test conditions min typ max unit supply current i cc 5 8 ma input offset voltage vhofs 6 mv output voltage v o i o =250ma upper and lower total 0.32 0.49 v input-output gain gio 45 48 51 db fg low voltage vfgl ifg=3ma 0.3 v input hysteresis voltage vhys 5 10 15 mv lock detection on time ton 0.35 0.50 0.65 sec lock detection off time toff 3.5 5.0 6.5 sec hall bias voltage vhb ihb=-5ma 1.1 1.3 1.5 v
fc8779 preliminary cmos ic unisonic technologies co., ltd 4 of 4 www.unisonic.com.tw qw-r502-981.a ? typical application circuit 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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