ET-LM393 www.estek.com.cn copyright @ estek electronics co., ltd version 0.2 27 july 2011 1 dual differential comparators ? description ? features ? pin description ? applications ? low supply current drain independent of the supply voltage. ? low input biasing current. ? low input offset current. ? low input offset voltage. ? input common-mode voltage range includes gnd. ? differential input voltag e range equal to the power supply voltage. ? low output saturation voltage. ? output voltage compatible with ttl, mos and cmos logic. ? battery charger ? cordless telephone ? switching power supply ? dc-dc module ? motherboard ? communication equipment the ET-LM393 consists of two independent voltage comparators. these were designed specifically to operate from a single power supply over a wide range of voltages. operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. the outputs can be connected to other open-collector outputs to achieve wired-and relationships. sop-8 dip-8
ET-LM393 www.estek.com.cn copyright @ estek electronics co., ltd version 0.2 27 july 2011 2 ? ordering information part number operating temperature range package packing lm393ki sop-8 tape & reel lm393ji -40 o c ~ +125 o c dip-8 tube ? absolute maximum ratings symbol parameter value unit v cc power supply voltages +36 or 18 v v idr input differential voltage range 36 v v icr input common mode voltage range -0.3 ~ +36 v t j junction temperature 150 o c t stg storage temperature (t a =+25 o c) -60~150 o c t l lead temperature, 1mm from case for 10 senconds 260 o c ? thermal characteristics symbol parameter package typical value unit sop-8 160 ja thermal resistance from junction to ambient in free air. (measured with the component mounted on a high effective thermal conductivity test board in free air.) dip-8 125 o c/w
ET-LM393 www.estek.com.cn copyright @ estek electronics co., ltd version 0.2 27 july 2011 3 ? electrical characteristics (t a =25 c, v cc =5.0v, unless otherwise noted .) symbol parameter test condition * min. typ. max. unit 25 o c - 2.0 5.0 v io input offset voltage v cc =5v to 30v v ic =v icr min v o =1.4v full range - - 9.0 mv 25 o c - 2 50 i io input offset current v o =1.4v full range - - 150 na 25 o c - -25 -250 i ib input bias current v o =1.4v full range - - -400 na 25 o c - - v cc -1.5 v icr common-mode input voltage range ** full range - - v cc -2.0 v a vd large-signal differential voltage amplification v cc =15v, r l 15k ? v o =1.4v to 11.4v 25 o c 50 200 - mv/v v cc =15v, v id =1v 25 o c - 0.1 50 i oh high-level output current v cc =30v, v id =1v full range - - 1 ma 25 o c - 150 400 v ol high-level output voltage i ol =4ma, v id =-1.0v full range - - 700 mv i ol low-level output current v ol =1.5v, v id =-1.0v 25 o c 6.0 - - ma v cc =5.0v 25 o c - 0.8 1.0 ma i cc supply current r l = v cc =30v full range - 1 2.5 ma * full range (min. to max.) is -40 o c to +125 o c, all characteristics are measured with zero common-mode input voltage unless otherwise specified. ** the voltage at either input or common-mode should not be allowed to go negative by more than 0.3v. the upper end of the common-mode voltage range is v cc -1.5v, but either or both inputs can go to 30v without damage. ? switching characteristics (v cc =5v, t a =25 o c) parameter test conditions min. typ. max. unit 100-mv input step with 5-mv overdrive - 1.3 - response time rl connected to 5v through 5.1k ? , cl=15pf * (see note 1) ttl-level input step - 0.3 - us * c l includes probe and jig capacitance. note 1: the response time specified is the interval be tween the input step function an d the instant, when the output crosses 1.4v.
ET-LM393 www.estek.com.cn copyright @ estek electronics co., ltd version 0.2 27 july 2011 4 ? typical characteristics
ET-LM393 www.estek.com.cn copyright @ estek electronics co., ltd version 0.2 27 july 2011 5 ? package information sop-8
ET-LM393 www.estek.com.cn copyright @ estek electronics co., ltd version 0.2 27 july 2011 6 ? package information dip-8
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