cl525 doc.# dsfp-cl525 a052013 general description the cl525 is a fxed, linear current regulator designed for driving leds at 25ma. with a maximum rating of 90v, it is able to withstand transients without the need for additional transient protection circuitry. it is ideally suited for applications employing single or multiple leds. the minimum dropout voltage of 1.0v accommodates extra leds, permits lower supply voltages, and provides more effcient operation. the cl525 is offered in to-252(d-pak) and to-92 packages. typical application circuit linear, fixed constant current led driver features ? 25ma 10% constant current drive ? 1.0v dropout ? 90v rating for transient immunity ? temperature compensated ? 4.75 - 90v supply range applications ? specialty lighting ? low voltage signage control v in 4.75 ? 90v out gnd vdd 100n f 20ma 20ma cl525 supertex inc. supertex inc. www .supertex.com
2 cl525 doc.# dsfp-cl525 a052013 absolute maximum ratings parameter value supply voltage, v dd -0.5v to +100v output voltage, v out -0.5v to +100v operating junction temperature -40c to +125c storage temperature -65c to +150c absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these conditions is not implied. continuous operation of the device at the absolute rating level may affect device reliability. all voltages are referenced to device ground.. sym parameter min typ max units conditions v dd supply voltage 4.75 - 90 v --- v out voltage at out pin 1 1.0 - 90 v --- t j junction temperature -40 - 125 o c --- c dd v dd bypass capacitor 100 - - nf --- recommended operating conditions (all voltages with respect to gnd pin) pin confgurations yy = year sealed ww = week sealed l = lot number = ?green? packaging si yyww cl525k4 lllllll yy = year sealed ww = week sealed = ?green? packaging si cl 525 yyww to-92 to-252 (d-pak) vdd out gnd to-92 to-252 (d-pak) product marking out vdd gnd package may or may not include the following marks: si or package may or may not include the following marks: si or part number package options packing cl525k4-g to-252 (d-pak) 2000/reel cl525n3-g to-92 1000/bag cl525n3-g p002 to-92 2000/reel cl525n3-g p003 to-92 2000/reel cl525n3-g p005 to-92 2000/reel cl525n3-g p013 to-92 2000/reel cl525n3-g p014 to-92 2000/reel ordering information typical thermal resistance package ja to-252 (d-pak) 81 o c/w* to-92 132 o c/w* notes: 1. thermal considerations may limit voltage to less than 90v. * mounted on jedec test pcb (2s 2p) -g denotes a lead (pb)-free / rohs compliant package refer to p0xx tape & reel specs for p002, p003, p005, p013, and p014 to-92 taping specifcations and winding styles supertex inc. www .supertex.com
3 cl525 doc.# dsfp-cl525 a052013 electrical characteristics (over recommended operating conditions. t a = 25 o c unless otherwise specifed. all voltages with respect to gnd pin ) sym parameter min typ max units conditions i dd current into vdd pin - - 1.0 ma --- i out current into out pin 22.5 25 27.5 ma 1.0v < v out < 90v - - 27.5 v out <1.0v i out(off) current into out pin with vdd pin open - - 10 a v dd = open v dd(off) voltage at vdd to shut off led current - - 1.0 v i out < 10a t on vdd applied on time - - 100 s --- t off vdd removed off time - - 100 s --- temperature effects application circuits switched led control v in 4.75 ? 90v out gnd vdd i out 100n f 25ma 1.02 1.00 0.98 0.96 0.94 0.92 -50 0 50 100 150 junction temperature ( o c) current (normalized to 25 o c at v out = 1.0v) 120 25 -40 v out = 90v, 100m s v out = 1.0v seperate led supply (v out may be higher or lower than v dd .) control v in out gnd vdd 25ma v dd supertex inc. www .supertex.com
4 cl525 doc.# dsfp-cl525 a052013 application circuits (cont.) ground referenced leds control v in out gnd vdd 100nf 25ma pin description pin # name description to-252 d-pak (k4) to-92 (n3) 1 1 vdd supply voltage for the cl525. bypass locally with a 100nf capacitor to ground. 3 2 out constant current output (sink). 4 3 gnd circuit common. i led = i out + i dd v led + 4.75v v in v led + 90v supertex inc. www .supertex.com
5 cl525 doc.# dsfp-cl525 a052013 3-lead to-252 d-pak package outline (k4) note: 1. although 4 terminal locations are shown, only 3 are functional. lead number 2 was removed. 1 2 3 4 l4 l5 b b2 e d1 e1 l1 l seating plane a1 gauge plane d e vi ew b front v iew side v iew rear v iew vi ew b 1 h c2 a l3 l2 b3 note 1 symbol a a1 b b2 b3 c2 d d1 e e1 e h l l1 l2 l3 l4 l5 1 dimen- sion (inches) min .086 .000* .025 .030 .195 .018 .235 .205 .250 .170 .090 bsc .370 .055 .108 ref .020 bsc .035 .025* .045 0 o 0 o nom - - - - - - .240 - - - - .060 - - - - - max .094 .005 .035 .045 .215 .035 .245 .217* .265 .182* .410 .070 .050 .040 .060 10 o 15 o jedec registration to-252, variation aa, issue e, june 2004. * this dimension is not specifed in the jedec drawing. drawings not to scale. supertex doc. #: dspd-3to252k4, version e041309. supertex inc. www .supertex.com
6 (the package drawing(s) in this data sheet may not refect the most current specifcations. for the latest package outline information go to http://www.supertex.com/packaging.html .) cl525 doc.# dsfp-cl525 a052013 3-lead to-92 package outline (n3) symbol a b c d e e1 e e1 l dimensions (inches) min .170 .014 ? .014 ? .175 .125 .080 .095 .045 .500 nom - - - - - - - - - max .210 .022 ? .022 ? .205 .165 .105 .105 .055 .610* jedec registration to-92. * this dimension is not specifed in the jedec drawing. ? this dimension differs from the jedec drawing. drawings not to scale. supertex doc.#: dspd-3to92n3, version e041009. seating plane 1 2 3 front v iew side v iew bottom v iew e1 e d e1 l e c 1 2 3 b a supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such appl ications unless it receives an adequate ?product liability indemnification insurance agreement.? supertex inc. does not assume responsibility for use of devices described, and limits its liabilit y to the replacement of the devices determined defective due to workmanship. no responsibility is assumed for possible omissions and inaccuracies. circuitry and specifications are subject to change without notice. for the latest product specifications refer to the supertex inc. (website: http//www .supertex.com) ?2013 supertex inc. all rights reserved. unauthorized use or reproduction is prohibited. supertex inc. 1235 bordeaux drive, sunnyvale, ca 94089 t el: 408-222-8888 www .supertex.com
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