unisonic technologies co., ltd uu642 preliminary linear integrated circuit www.unisonic.com.tw 1 of 5 copyright ? 2013 unisonic technologies co., ltd qw-r121-022.a interval and wipe/wash wiper control ic ? description the bipolar integrated circuit utc uu642 is designed as a wiper for automotive application. it includes wipe, wash and internal mode. the utc uu642 is a cost-effective solution for an accurate timing function control. wipe/wash mode has priority over interval mode. interval pause and after-wiping time can be set to fixed values by using resistors in a broad time range. added value can be provided with an individual, continuous adjustment of the interval pause by a potentiometer which may be built into the stalk. for proper operation, it is mandatory to feed the signal of the wiper motor?s park switch into utc uu642 . ? features * after-wiping time: 2s~20s * interval pause: 4s~20s * wipe/wash mode priority * wiper motor?s park switch * relay driver with z-diode * one external capacitor determines all time sequences * interference protection according to vde 0839 or iso/tr 637/1 * load-dump protected ? ordering information ordering number package packing lead free halogen free uu642l-d08-t uu642g-d08-t dip-8 tube UU642L-S08-T uu642g-s08-t sop-8 tube uu642l-s08-r uu642g-s08-r sop-8 tape reel
uu642 preliminary linear integrated circuit unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r121-022.a ? pin configuration 1 2 3 4 8 7 6 5 gnd rt ct int wash park out vs ? pin description pin no. pin name description 1 gnd ground 2 int interval switch 3 ct timing capacitor c 2 4 rt after-wiping time resistance 5 wash wipe/wash switch 6 park park switch for wiper motor 7 out relay control output 8 vs supply voltage terminal 15 ? block diagram v s 8 7 out 6 park 5 wash v ref v ref logic load-dump comparator park switch comparator input comparator v ref v ref wipe/wash comparator interval abc d e f gnd 1 int 2 c t 3 r t 4 comparator
uu642 preliminary linear integrated circuit unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r121-022.a ? absolute maximum rating parameter symbol ratings unit supply voltage t=60s, terminal 15 v bat t 28 v supply current t=2ms i 8 1.5 a t=200ms 150 ma relay control output current (dc) i 7 200 ma relay control output current (dc) t=200ms 1.2 a pulse current (control inputs) t=200ms park switch, s 1 i 6 50 ma wipe/wash switch, s 3 i 5 50 ma interval switch, s 2 i 2 50 ma power dissipation t amb =90c p d 500 mw ambient temperature range t a -40~+85 c storage temperature range t stg -55~+125 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 oper ation is not implied. ? thermal resistance parameter symbol ratings unit junction to ambient dip-8 ja 120 k/w sop-8 160 k/w
uu642 preliminary linear integrated circuit unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r121-022.a ? electrical characteristics (v batt =12v, t a =25c, reference point is pin 8, unless otherwise specified.) parameter symbol test conditions min typ max unit supply voltage v bat t 9 16.5 v supply current i 8 9 ma z-diode limitation v 1 6 v overvoltage threshold current i 1 -94 ma threshold voltage v bat t 37 v relay control output saturation voltage v 7 i 7 =100ma -1.0 v i 7 =200ma -1.5 v leakage current i 7 100 a park switch internal pull-up resistance r 6 r 6 =10k ? 41 k ? switching threshold voltage v 6 -3.1 v protection diode v 6 i 6 =-10ma -0.8 v i 6 =10ma 7.6 v input c t internal resistance r 3 100 ? interval input r 2 =2.7~30k ? protection diode v 2 i 2 =-10ma -0.8 v i 2 =30ma/10ms 5.6 v wash input r 5 =10k ? switching threshold/hysteresis v 5 -1.1/-7.1 v protection diode v i 5 =-10ma -0.87 v i 5 =10ma 8.7 v switching characteristics r 4 =47k ? ~300k ? , i 4 =-150 a interval time t 2 r 3 =0k ? 3.45 s r 3 =10k ? 10.8 s prewash delay t del 80 ms after-wipe-time t 5 r 4 =130k ? 4.7 s
uu642 preliminary linear integrated circuit unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r121-022.a ? typical application circuit r 6 r 5 10k 10k 8 7 6 5 c 1 relay 47f 10v utc uu642 1 2 3 4 r 1 510 2.7k r 2 c 2 22f r 4 r time =130k r 3 s 2 s 1 10k m m s 3 31 15 wiwa park switch wiper motor interval switch water pump 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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