pm-45 high current (hc8lp) description ? 155c maximum temperature operation ? low profile surface mount inductors designed for higher speed switch mode applications requiring low voltage, and high current ? design utilizes high temperature powder iron material with a non-organic binder to eliminate thermal aging ? inductance range from 0.17 uh to 47.9 uh ? current range from 29 amps to 1.8 amps ? frequency range 1khz to 500khz applications ? next generation processors ? high current dc-dc converters ? vrm, multi-phase buck regulator ? pc workstations, routers, servers ? telecom soft switches, base stations environmental data ? storage temperature range: -40c to +155c ? operating temperature range: -40c to +155c (range is application specific) ? solder reflow temperature: +260c max. for 10 seconds max. packaging ? supplied in tape and reel packaging, 800 parts per reel part rated ocl (1) irms (2) isat (3) isat (4) dcr (m ) volts (5) number inductance nominal amperes amperes amperes max. @ sec (vs) h + /-20% h (typ.) 15% rolloff 30% rolloff 20c (ref.) hc8lp-r15-r 0.15 0.170 29.0 31 56 1.40 7.8 hc8lp-r39-r 0.39 0.430 20.2 19 34 2.80 4.7 HC8LP-R75-R 0.75 0.830 15.6 13.5 24 4.70 3.4 hc8lp-1r2-r 1.2 1.35 12.4 10.1 18.7 7.50 2.6 hc8lp-1r9-r 1.9 1.92 10.1 8.7 15.5 11.5 4.1 hc8lp-2r6-r 2.6 2.67 8.3 7.4 13.1 17.1 4.8 hc8lp-3r5-r 3.5 3.56 6.9 6.4 11.4 24.5 5.6 hc8lp-4r5-r 4.5 4.57 6.5 5.6 10.0 27.6 6.3 hc8lp-5r6-r 5.6 5.71 5.5 5.1 9.0 38.9 7.1 hc8lp-6r9-r 6.9 6.98 5.2 4.6 8.1 42.8 7.8 hc8lp-8r2-r 8.2 8.37 4.5 4.2 7.4 58.0 8.6 hc8lp-100-r 10.0 9.90 4.3 6.8 3.8 62.9 9.3 hc8lp-150-r 15.0 15.20 3.4 3.1 5.5 99.4 11.6 hc8lp-220-r 22.0 21.70 2.8 2.6 4.6 149 13.7 hc8lp-330-r 33.0 32.10 2.3 2.1 3.8 224 16.8 hc8lp-470-r 47.0 47.90 1.8 1.7 3.1 344 20.3 1) open circuit inductance test parameters: 100khz, 1.0v, 0.0adc 2) irms: dc current for an approximate dt of 40c without core loss. derating is necessary for ac currents. pcb layout, trace thickness and width, air-flow, and prox- imity of other heat generating components will affect the temperature rise. it is rec- ommended that the temperature of the part not exceed 155c under worst case operating conditions verified in the end application. 3) isat amperes peak for approximately 15% rolloff (@20c) 4) isat amperes peak for approximately 30% rolloff (@20c) 5) applied volt-time product (v-s) across the inductor. this value represents the applied v-s at operating frequency necessary to generate additional core loss which contributes to the 40c temperature rise. de-rating of the irms is required to prevent excessive temperature rise. the 100% v-us rating is equivalent to a ripple current ip-p of 20% of isat (30% rolloff option). part number definition: hc8lp-xxx-r hc8lp = product code and size xxx = inductance in h. r = decimal point. if no r is present third character = # of zeros. -r suffix indicates rohs compliant hc8lp series power inductors rohs 2002/95/ec
pm-46 high current (hc8lp) hc8lp series power inductors 1.75 11.5 24.0 +/-0.3 user direction of feed 11.2 hc8-xxx wwllyy r section a-a a a ko bo ao 1.5 dia +0.1/-0.0 1.5 dia min 4.0 2.0 16.0 ko=4.3 mm bo=11.2 mm ao=10.4 mm 13" dia. eia-481 compliant reel. packaging information: parts packaged on a 800 parts per reel. packaging information dimensions in millimeters wwllyy = date code, r = revision level mechanical diagrams 10.4 max 10.4 max hc8lp-xxx wwll yy r top view 10.9 max b max c l aref 3.95 2 plcs ref front view b max mm 1r2 3.3 r39 r75 r15 pn 3.5 3.5 3.5 front view dimesional table a ref mm 2.1 2.1 2.1 2.1 1r9 thru 470 2.7 3.5 2.70 0.55 (2 x) side view 3.5 typ 2plcs 3.0 typ 2plcs 4.0 typ recommended pcb pad layout schematic 1 2
pm-47 high current (hc8lp) hc8lp series power inductors ocl vs isat 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 % of isat %ofocl rolloff core loss irms derating with core loss 92 93 94 95 96 97 98 99 100 10 30 50 70 90 110 130 150 170 190 % applied volt-u seconds % of irms specified from zero ripple application (maximum) 100khz 200khz 300khz 400khz 500khz
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