pm-130 l o w p r o f i l e s h i e l d e d d r u m ( s d 8 3 2 8 ) description ?125 maximum temperature operation ?low profile surface mount inductor ? 8.3mm x 9.5mm x 3.0mm shielded drum core ?ferrite core material ?inductance range from 2.7 h to 100? ?current range from 6.6 amps to 0.8 amps ?frequency range up to 1mhz applications ?buck or boost inductor ?noise filtering output filter chokes ?notebook power/display ?lcd monitors/displays/televisions ?battery chargers, lcd bias supplies ?battery and industrial power systems ?computer, dvd players ?portable power devices, dc-dc converters environmental data ? stor age temper ature r ange: -40 c to +125 ?operating temperature range: -40 to +125? (range is application specific) ?solder reflow temperature: +260 max. for 10 seconds maximum p ackaging ?supplied in tape and reel packaging, 1280 per reel sd8328 series low profile power inductors part number rated ocl (1) irms(2) isat (3) dcr ( ) dcr ( ) k-factor inductance ? 30% amperes amperes m @20 m @20 (4) (?) (typical) (maximum) sd8328-2r5-r 2.5 2.7 6.6 4.5 12 15.6 43 sd8328-3r3-r 3.3 3.4 6.1 4.0 14 18.0 33 sd8328-4r7-r 4.7 5.0 4.5 3.6 19 24.7 23 sd8328-7r3-r 7.3 7.6 3.4 2.9 30 39 15 SD8328-100-R 10 9.1 3.3 2.6 36 45 11 sd8328-150-r 15 14.5 2.35 2.0 53 69 7.2 sd8328-220-r 22 21.1 1.85 1.7 76 99 4.9 sd8328-330-r 33 31.9 1.45 1.4 120 156 3.3 sd8328-470-r 47 44.9 1.30 1.2 150 194 2.3 sd8328-680-r 68 64.2 0.98 1.0 220 286 1.6 sd8328-101-r 100 97.0 0.80 0.8 330 430 1.1 (1) open circuit inductance test parameters: 100khz, 0.1v, 0.0adc. (2) ir ms: dc current f or an approximate ? t of 40 without core loss. derating is necessar y f or a c currents . pcb la y out, tr ace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. it is recommended that the temper ature of the par t not e xceed 125 under worst case oper ating conditions v er ified in the end application. (3) isat amperes peak for approximately 35% rolloff (@25) (4) k-factor: used to determine b p-p for core loss (see graph). b p-p = k*l* ? i, b p-p(mt), k: (k factor from table), l: (inductance in ?), ? i (p eak to peak r ipple current in amps). (5) part number definition: sd8328-xxx-r sd8328 = product code and siz e; -xxx = inductance v alue in uh; r = decimal point; if no r is present, third char acter = # of z eros . -r suffix = rohs compliant ro hs 2002/95/ec dimensions are in millimeters. xxx = inductance value in uh. r = decimal point. if no r is present third character = # of zeros. wwllyy = date code, r = revision level. recomme nded pcb lay out schem atic 1 2 9.5 max 8.3 max 3.0 max 2.5 typ 1.2 typ 6.3 typ xxx wwlly r top view f ront v iew b ott om view 5.7 2.9 1.8 1 2 left view mec hanical dia grams
pm-131 l o w p r o f i l e s h i e l d e d d r u m ( s d 8 3 2 8 ) sd8328 series low profile power inductors core loss 100khz 200 khz 300khz 500khz 1mhz 0.0001 0.001 0.01 0.1 1 10 1101 0 01 0 00 bp- p ( mt) c o r e l o s s ( w ) wwlly r x xx 12.0 a1 ao 16.0 user d ire cti on of feed 4.0 a 1.75 a 1 .5 dia min 7.5 1.5 dia +0.1/-0.0 b 1 secti on a-a ko bo ao=9. 5 mm bo=10 .0 mm a1=8. 5 mm b1=9. 7 mm ko=3 .2 mm 2.0 parts packaged on 13" diameter reel, 1,280 parts per reel. packaging information
pm-132 l o w p r o f i l e s h i e l d e d d r u m ( s d 8 3 2 8 ) ocl vs. i sat 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% 0.0% 20.0% 40.0% 60.0% 80.0% 100 .0% 120 .0% % isat % o c l +85 de g.c +25 de g.c -40 d eg.c inductance characteristics sd8328 series low profile power inductors temperature rise vs. loss 0 2 0 40 6 0 80 1 00 120 1 40 1 60 0 .0 0.2 0.4 0 .6 0 .8 1 .0 tota l powe r l oss (w) t e m p e r a t u r e r i s e ( o c )
|
