description ? 125 maximum total temperature operation ? low profile surface mount inductor ? 10.3mm x 10.5mm x 4.0mm shielded drum core ? ferrite core material ? inductance range from 1.5? to 330? ? current range from 10.0 amps to 0.52 amps ? frequency range up to 1mhz applications ? notebook power, portable devices ? wireless modems, adsl line cards ? point of load power supplies ? battery chargers, video cards ? mp3 player, pdas, dvd players ? led driver for notebook computer ? navigation system, lcd backlighting ? buck, boost, or forward inductor environmental data ? storage temperature range: -40 to +125? ? oper ating temperature range: -40 to +125 c (r ange is application specific) ? solder reflow temperature: +260 max. for 10 seconds maxim um packaging ? supplied in tape and reel packaging, 850 per reel dr1040 series low profile power inductors p ar t number rated ocl (1) irms(2) isat (3) dcr ( ) dcr ( ) k-factor inductance h?0% amperes amperes m @20 m @20 (4) (?) (typical) (maximum) dr1040-1r5-r 1.5 1.4 6.50 10.00 6.0 8.1 15.48 dr1040-2r5-r 2.5 2.4 6.10 7.80 7.0 9.0 12.04 dr1040-3r8-r 3.8 3.6 5.50 6.40 9.6 13.0 9.85 dr1040-5r2-r 5.2 5.2 5.40 5.50 14.0 17.0 8.33 dr1040-7r0-r 7.0 6.8 4.50 4.80 17.0 20.0 7.22 dr1040-8r2-r 8.2 8.1 3.98 4.60 24.0 29.0 6.37 dr1040-100-r 10 9.6 3.80 4.40 26.0 35.0 5.70 dr1040-150-r 15 14.9 3.10 3.60 37.0 50.0 4.71 dr1040-220-r 22 21.1 2.50 2.90 54.0 73.0 4.01 dr1040-330-r 33 32.6 2.20 2.45 69.0 93.0 3.28 dr1040-470-r 47 45.8 1.90 2.10 95.0 128 2.78 dr1040-680-r 68 65.3 1.42 1.65 152 183 2.30 DR1040-820-R 82 86.8 1.29 1.47 214 260 2.04 dr1040-101-r 100 101.4 1.25 1.35 225 304 1.90 dr1040-151-r 150 148.3 0.85 1.15 356 430 1.57 dr1040-221-r 220 216.2 0.70 0.92 530 640 1.27 dr1040-331-r 330 323.4 0.52 0.70 810 1090 1.03 (1) open circuit inductance t est p ar ameters: 100khz, 0.25v , 0.0adc. (2) irms: dc current for an approximate ? t of 30 without core loss. derating is necessar y f or a c currents. pcb layout, trace thickness and width, air-flow, and pro ximity of other heat gener ating components will aff ect the temper ature r ise .it is recommended that the temperature of the part not exceed 125 under worst case oper ating conditions v erified in the end application. (3) isat amperes peak f or appro ximately 35% rolloff (@25 c) (4) k-f actor : used to deter mine b p-p f or core loss (see g raph). b p-p = k*l* ? i, b p-p(mt), k: (k factor from table), l: (inductance in ?), ? i (p eak to peak ripple current in amps). (5) p ar t number definition: dr1040-xxx-r dr1040 = product code and size; -xxx = inductance value in uh; r = decimal point; if no r is present, third char acter = # of zeros. -r suffix = rohs compliant rohs 2002/95/ec
dr1040 series low profile power inductors core loss 0. 001 0. 01 0. 1 1 10 1 10 100 1000 bp-p (mt) c o r e l o s s ( w ) 1 0 0khz 20 0khz 3 0 0k hz 5 0 0khz 1 mhz b 1 wwlly r x xx a1 1 2. 0 24.0 +/-0.3 1.5 dia min a 1.75 a 4.0 us er direction of feed ao 16.0 2.0 a1=10.6 m m bo=11.0 mm ao=10.8 m m 1.5 dia +0.1/-0.0 bo ko section a-a ko=4.2 mm b1=10.5 mm parts packaged on 13" diameter reel, 850 parts per reel. packaging information d imensions are in millimeters. x xx = inductance value in uh. r = decimal point. if no r is present third character = # of zeros. wwllyy = date code, r = revision level. wwll y r xxx 10.5 max top view 1 2 10.3 max side view 4.0 max bottom view 7.7 +/- 0.3 1.2 +/- 0.15 (2 pcs) 1 3 .0 +/- 0.1 2 r eco m mended pcb layout 3 .2 2 plcs 1 0. 5 ref 1.6 2 plcs schem ati c 2 1 mechanical diagrams
60.0% % o f o c l 1 20.0% 10 0.0% 80.0% 40.0% 20.0% 0.0% 0.0% 20 .0% 40 .0% 60 .0% 8 0.0% 1 0 0.0% 1 20.0% 1 40.0% 1 60.0% % of isat ocl vs. isat -40 d eg.c +25 deg.c +85 deg.c inductance characteristics dr1040 series low profile power inductors temperature rise vs. loss 0 20 40 60 80 100 120 0 0.2 0.4 0.6 0.8 1 1.2 tot al loss (w) t e m p e r a t u r e r i s e ( c ) visit us on the web at www.cooperbussmann.com 1225 brok en sound pkwy . suite f boca raton, fl 33487 t el: +1-561-998-4100 toll free: +1-888-414-2645 fax: +1-561-241-6640 this bulletin is intended to present product design solutions and technical information that will help the end user with design applications. cooper electronic technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. cooper electronic technologies also reserves the right to change or update, without notice, any technical information contained in this bulletin. once a product has been selected, it should be tested by the user in all possible applications. life support policy: cooper electronic technologies does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the company. life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. pm-4147 3/07 cooper electronic technologies 2007
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