Document 690-1 Power Inductor – GA3382-BL For NSC LM25037 PWM Controller • Designed for National Semiconductor LM25037 Dual Mode PWM Controller. Shown as L3 on Application Note AN-1861. • 500 Vrms primary to bias and primary to core isolation • Bias winding provides 10 Vdc to the circuit Core material Ferrite Terminations RoHS compliant tin-silver (96.5/3.5) over copper. Other terminations available at additional cost. Weight 9.5 g Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –40°C to +125°C. Tape and reel packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Packaging 175/13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 32 mm pocket spacing, 11.5 mm pocket depth PCB washing Only pure water or alcohol recommended 3 Inductance2 DCR max (Ohm) Part number1 ±10% (µH) pri bias GA3382-BL_ 4.0 0.00950.36 SRF typ (MHz) 30 Isat (A)4 Irms (A)5 10% drop 20% drop 30% drop 20°C rise 40°C rise 16.0 17.0 18.0 1. When ordering, please specify termination and packaging codes: GA3382-BLD Termination: L=RoHS compliant tin-silver (96.5/3.5) over copper. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging:D =13″ machine-ready reel. EIA-481 embossed plastic tape. B=Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 2. Inductance measured at 250 kHz, 0.4 Vrms. 3. DCR for the primary is with the windings connected on parallel. 4. DC current at which inductance drops the specified amount from its value without current. 5. Current that causes the specified temperature rise from 25°C ambient. 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 6.5 8.5 1 2 3 4 7 8 9 10 5 Bias 6 Primary windings to be connected in parallel on the PC board US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] Document 690-1 Revised 09/05/08 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 690-2 Power Inductor – GA3382-BL Inductance vs Current Inductance vs Frequency 100 Inductance (µH) Inductance (µH) 100 10 1 0.1 0.1 10 1 100 10 0 0.1 0.1 100 Frequency (MHz) 1 110 XXXXY 120 0.910 max 23,11 100 90 5 80 GA3382-AL Irms Derating 10 Parts manufactured prior to December 2011 may be marked differently. 6 70 60 0.395 max 10,03 50 40 25°C Percent of rated Irms 10 1 Current (A) 30 0.004 / 0,10 0.791 20,10 1.020 max 25,90 20 10 0 -40 -20 0 20 40 60 80 Ambient temperature (°C) 100 120 140 6 5 0.148 3,76 0.039 1,00 1 10 1.040 26,42 0.148 3,76 Recommended Land Pattern 0.060 1,52 1 inches Dimensions are in mm US +1-847-639-6400 [email protected] UK +44-1236-730595 [email protected] Taiwan +886-2-2264 3646 [email protected] China +86-21-6218 8074 [email protected] Singapore + 65-6484 8412 [email protected] 0.090 2,29 Document 690-2 Revised 09/05/08 © Coilcraft Inc. 2013 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.