cl2 doc.# dsfp-cl2 c071012 features ? 5.0 to 90v operating range (v a-b ) ? 20ma 10% at 5.0 - 90v ? 0.01%/c typical temperature coeffcient ? available in to-243aa (sot-89), to-25 2 (d-pak), & to-92 packages ? can be parallel ed for higher current applications ? led driver ? industrial lamp indicators ? signage ? accent lighting ? automotive ? constant current source ? constant current sink general description the supertex cl2 is a high voltage, temperature compensated, constant current source. the device is trimmed to provide a constant current of 20ma10% at an input voltage of 5.0 - 90v. the device can be used as a two terminal constant current source or constant current sink. a typical application for the cl2 is to drive leds with a constant current of 20ma. multiple cl2s can also be used in parallel to provide higher currents such as 40ma, 60ma or 80ma. the device is available in to-243aa (sot-89), to-252 (d-pak), and to-92 packages. typical application circuit simple 90v, 20ma, temperature compensated constant current led driver ic va vb up to 90v + v led(total) + v led(total) - va vb functional circuit diagram cl2 i led <20ma control circuit and t emperature compensation 100nf supertex inc. supertex inc. www .supertex.com
2 cl2 doc.# dsfp-cl2 c071012 absolute maximum ratings parameter value operating voltage, v a-b 100v operating junction temperature, t j -40c to +125c storage temperature, t s -55c 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. typical thermal characteristics package power dissipation @t a = 25 o c (w) ja ( o c/w) to-252 2.0* 81* to-92 0.6 132 to-243aa 1.3* 133* pin confgurations * mounted on fr4 board; 25mm x 25mm x 1.57mm sym parameter min typ max units conditions v a-b operating voltage 5.0 - 90 v --- i a-b current regulation 18.0 20 22 ma v a-b = 5.0v - 90v , a-b 7 i a-b psdxril - 0.01 - %/ o c v a-b = 45v, t j = -40 o c to +100 o c t j operating junction temperature -40 - 125 o c --- r a-b dynamic resistance - 300 - n --- electrical characteristics (t a = 25c unless otherwise specifed) yy = year sealed ww = week sealed l = lot number = ?green? packaging si yyw w cl2 llllll l yy = year sealed ww = week sealed = ?green? packaging si cl 2 yyww cl2w w = code for week sealed = ?green? packagin g to-252 (d-pak) (k4) to-92 (n3) to-92 (n3) to-243aa (sot-89) (n8) to-252 (d-pak) (k4) to-243aa (sot-89) (n8) product marking nc va vb va n/c vb va n/c vb vb package may or may not include the following marks: si or package may or may not include the following marks: si or package may or may not include the following marks: si or -g indicates package is rohs compliant (green) refer to p0xx tape & reel specs for p002, p003, p005, p013, and p014 to- 92 taping specifcations and winding styles part number package options packing cl2k4-g to-252 (d-pak) 2000/reel cl2n3-g to-92 1000/bag cl2n3-g p002 to-92 2000/reel cl2n3-g p003 to-92 2000/reel cl2n3-g p005 to-92 2000/reel cl2n3-g p013 to-92 2000/reel cl2n3-g p014 to-92 2000/reel CL2N8-G to-243aa (sot-89) 2000/reel ordering information supertex inc. www .supertex.com
3 cl2 doc.# dsfp-cl2 c071012 output current vs voltage temperature characteristics 0. 98 0. 99 1. 00 1. 01 1. 02 1. 03 -5 5- 35 -1 55 25 45 65 85 105 125 145 te mperature (c) current, normalized to 25c 5.0v 45v 90v 0 5 10 15 20 25 01 02 03 04 05 06 07 08 09 0 100 v a-b i a-b (ma) functional circuit diagram equivalent block diagram va control circuit and t emperatur e compensation vb 20ma 10% va vb supertex inc. www .supertex.com
4 cl2 doc.# dsfp-cl2 c071012 cl2 for higher current cl2 for multiple led strings vb va cl2 up to 90v +v led(total) vb va vb va vb va + +v led(total) - 100nf i led ~20ma i led ~20ma i led ~20ma i led ~20ma cl2 cl2 cl2 vb va cl2 up to 90v +v led(total) vb va i led ~60ma vb va + _ v led(total ) 100nf cl2 cl2 supertex inc. www .supertex.com
5 cl2 doc.# dsfp-cl2 c071012 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 cl2 doc.# dsfp-cl2 c071012 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. www .supertex.com
7 cl2 (the package drawings 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 .) doc.# dsfp-cl2 c071012 3-lead to-243aa (sot-89) package outline (n8) symbol a b b1 c d d1 e e1 e e1 h l dimensions (mm) min 1.40 0.44 0.36 0.35 4.40 1.62 2.29 2.00 ? 1.50 bsc 3.00 bsc 3.94 0.73 ? nom - - - - - - - - - - max 1.60 0.56 0.48 0.44 4.60 1.83 2.60 2.29 4.25 1.20 jedec registration to-243, variation aa, issue c, july 1986. ? this dimension differs from the jedec drawing drawings not to scale . supertex doc. #: dspd-3to243aan8, version f111010. b b1 d d1 e h e1 c a 1 2 3 e e1 t op vi ew side v iew l 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 liability 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) ?2012 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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