Document 667-1 Dual Inductor for Class D – GA3416-CL • • • • Dual inductor for use in Class D output filter Designed for low distortion and the best sound quality Shielded surface mount package contains both coils Additional mounting pads for excellent board adhesion Core material Ferrite Terminations RoHS compliant tin-silver over copper (leads), gold over nickel over phos bronze (additional mounting pads). Other terminations available at additional cost. Weight 7.8 g Ambient temperature –40°C to +125°C with Irms current, +125°C to +165°C with derated current Storage temperature Component: –40°C to +165°C. 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 200/13″ reel Plastic tape: 32 mm wide, 0.4 mm thick, 20 mm pocket spacing, 12.45 mm pocket depth PCB washing Only pure water or alcohol recommended Part number1 GA3416-CL_ Maximum power (W)2 2 Ohm 4 Ohm Inductance3 load load ±10% (µH) 28 60 DCR max4 (Ohms) SRF typ5 (MHz) 0.021 23.6 10.0 1. When ordering, please specify termination, and packaging codes: GA3416-CLD Termination: L = RoHS compliant tin-silver over copper (leads), gold over nickel over phos bronze (additional mounting pads. 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 (200 parts per full reel). 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. Maximum power into specified load that causes a 40°C temperature rise. Measured at 1 kHz with a 14.4 Vdc supply for the 2-Ohm load and a 21 Vdc supply for the 4-Ohm load. Refer to Output Power table for typical output conditions. Tested using the TAS5414A Evaluation Board from Texas Instruments. 3. Inductance measured at 500 kHz, 0.5 Vrms, 0 Adc using an Agilent/ HP 4284A impedance analyzer. 4. DCR measured on a micro-ohmmeter. 5. SRF measured using Agilent/HP 8753D network analyzer. 6. Total harmonic distortion + noise measured at 23 W into a 2-Ohm or 4-Ohm load at 1 kHz with a 21 Vdc supply. 7. DC current at which the inductance drops the specified amount from its value without current. 8. Current applied to windings connected in series that causes the specified temperature rise from 25°C ambient. 9. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. THD+N6 (%) <0.1 9.1 9.3 9.5 Irms (A)8 20°C 40°C rise rise 3.0 4.3 Output Power Power typ (W) Temperature rise from 25°C (°C) Load THD+N Test condition 21 25 17.0 20.0 4 Ohm 4 Ohm 1% 10% 1 kHz, 14.4 Vdc 1 kHz, 14.4 Vdc 44 54 30.7 35.0 4 Ohm 4 Ohm 1% 10% 1 kHz, 21 Vdc 1 kHz, 21 Vdc 33 40 46.5 51.6 2 Ohm 2 Ohm 1% 10% 1 kHz, 14.4 Vdc 1 kHz, 14.4 Vdc Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Isat (A)7 10% 20% 30% drop drop drop Document 667-1 Revised 09/25/09 Document 667-2 Class D Dual Inductor – GA3416-CL L vs Current ESR vs Frequency Equivalenet Series Resistance (Ohms) Inductance (µH) 100 10 1 0.1 10 1 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1 100 10 Current (A) Current Derating Dot indicates pin 1 100 GA3416-CL CCI XXXX 120 110 1000 1 0.535 max 13,59 2 4 90 0.610 max 15,50 80 70 3 60 50 0.520 max 13,21 40 30 20 25°C Percent of rated current 100 Frequency (kHz) Isat Irms 10 0 -40 -20 0 20 40 Recommended Land Pattern 0.004 /0,10 60 80 100 120 140 160 180 0.045 1,15 Ambient temperature (°C) 2 3 0.10 2,54 0.089 2,25 0.098 2,5 0.34 8,6 0.07 1,78 1 4 2 3 0.11 2,79 CL 1 0.16 4,06 4 Pads provided for mounting stability only 0.26 6,6 0.12 3,05 0.13 3,3 0.187 4,76 CL Dimensions are in inches mm Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2009 Document 667-2 Revised 09/29/09