DR1040 Series Low Profile Power Inductors Description RoHS 2002/95/EC * 125C 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 1.5H to 330H * 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, PDA's, DVD players * LED driver for notebook computer * Navigation system, LCD backlighting * Buck, Boost, or Forward inductor Environmental Data * Storage temperature range: -40C to +125C * Operating temperature range: -40C to +125C (range is application specific) * Solder reflow temperature: +260C max. for 10 seconds maximum Part Number OCL (1) H30% Irms(2) Amperes Isat (3) Amperes 1.4 2.4 3.6 5.2 6.8 8.1 9.6 14.9 21.1 32.6 45.8 65.3 86.8 101.4 148.3 216.2 323.4 6.50 6.10 5.50 5.40 4.50 3.98 3.80 3.10 2.50 2.20 1.90 1.42 1.29 1.25 0.85 0.70 0.52 10.00 7.80 6.40 5.50 4.80 4.60 4.40 3.60 2.90 2.45 2.10 1.65 1.47 1.35 1.15 0.92 0.70 (1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc. (2) Irms: DC current for an approximate T of 30C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 125C under worst case operating conditions verified in the end application. (3) Isat Amperes peak for approximately 35% rolloff (@25C) DCR () m @20C (Typical) 6.0 7.0 9.6 14.0 17.0 24.0 26.0 37.0 54.0 69.0 95.0 152 214 225 356 530 810 DCR () m @20C (Maximum) 8.1 9.0 13.0 17.0 20.0 29.0 35.0 50.0 73.0 93.0 128 183 260 304 430 640 1090 K-factor (4) 15.48 12.04 9.85 8.33 7.22 6.37 5.70 4.71 4.01 3.28 2.78 2.30 2.04 1.90 1.57 1.27 1.03 (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 H), I (Peak to peak ripple current in Amps). (5) Part Number Definition: DR1040-xxx-R DR1040 = Product code and size; -xxx = Inductance value in uH; R = decimal point; If no R is present, third character = # of zeros. -R suffix = RoHS compliant PM-59 SHIELDED DRUM (DR1040) DR1040-1R5-R DR1040-2R5-R DR1040-3R8-R DR1040-5R2-R DR1040-7R0-R DR1040-8R2-R DR1040-100-R DR1040-150-R DR1040-220-R DR1040-330-R DR1040-470-R DR1040-680-R DR1040-820-R DR1040-101-R DR1040-151-R DR1040-221-R DR1040-331-R Rated Inductance (H) 1.5 2.5 3.8 5.2 7.0 8.2 10 15 22 33 47 68 82 100 150 220 330 Packaging * Supplied in tape and reel packaging, 850 per reel DR1040 Series Low Profile Power Inductors Mechanical Diagrams TOP VIEW SIDE VIEW RECOMMENDED PCB LAYOUT BOTTOM VIEW 10.5 max 3.0 +/- 0.1 4.0 max 1 XX X wwll y R 2 1 10.3 max 1.6 2 plcs 2 3.2 2 plcs 1.2 +/- 0.15 (2 Pcs) SCHEMATI C 1 2 10.5 Ref 7.7 +/- 0.3 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. Packaging Information 1.5 dia +0.1/-0.0 1.5 dia min 4.0 2.0 A 1.75 12.0 Bo B1 Ko 24.0 +/-0.3 XXX wwlly R A1 16.0 Ao SECTION A-A Bo=11.0 mm User direction of feed A1=10.6 mm B1=10.5 mm Parts packaged on 13" Diameter reel, 850 parts per reel. Ko=4.2 mm Core Loss 1MHz 500kHz 300kHz 200kHz 10 100kHz 1 Core Loss (W) SHIELDED DRUM (DR1040) A Ao=10.8 mm 0. 1 0. 01 0. 001 1 10 100 Bp-p (mT) PM-60 1000 DR1040 Series Low Profile Power Inductors Temperature Rise vs. Loss Temperature Rise(C) 120 100 80 60 40 20 0 0 0.2 0.4 0.6 0.8 1 1.2 Total Loss (W) Inductance Characteristics OCL vs. Isat 120.0% 100.0% SHIELDED DRUM (DR1040) % of OCL 80.0% 60.0% 40.0% -40 Deg.C +25 Deg.C +85 Deg.C 20.0% 0.0% 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% 140.0% 160.0% % of Isat PM-61