SMT POWER INDUCTORS Power Beads - PA314xAHL Series Coupled Inductor 8mm Coupled Inductors for Volterra Gen2.5 Applications For use only with Volterra chipsets Coupled Inductors enable: • Phase ripple current reduction due to AC magnetic field cancellation within the inductor core. • Improved efficiency due to lower peak currents • Reduction in required output capacitance Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C Part Number Number of Coupled Phases Series Inductance (nH +/- 15%) PA3142AHL 2 100 PA3143AHL 3 150 Equivalent Transient (nH) 4 200 PA3145AHL 5 250 Imax Peak3 per Phase (Adc) Open Circuit Inductance4,5 per Phase (nH) Phase 1 (2-1) Phase 2 (4-3) Phase 3 (6-5) Phase 4 (8-7) Phase 5 (10-9) na na na na na 200nH Min at 0Adc (25C) 150nH Min at 25Adc (25C) 100nH Min at 23Adc (105C) 50 PA3144AHL Irms_TDC (Adc) 40 110 200nH Min at 0Adc (25C) 150nH Min at 25Adc (25C) 100nH Min at 23Adc (105C) 200nH Min at 0Adc (25C) 150nH Min at 25Adc (25C) 100nH Min at 23Adc (105C) DCR per Phase6 (mΩ) 0.25 Typical 0.30 Max na 200nH Min at 0Adc (25C) 150nH Min at 25Adc (25C) 100nH Min at 23Adc (105C) Notes: 1. The series inductance is the inductance when all phases are tied in series and is measured and verified in production at 100khz, 100mVrms: (ie: for PA3144AHL: Inductance (2-7) with (1-4 and 3-6 and 5-8 shorted) ) 4. The open-circuit inductance per phase is the measured inductance across each phase when all other phases are open circuit. Open circuit inductance is measured at 100kHz, 100mVrms. The open circuit inductance is equal to the magnetizing inductance per phase (Lm) plus the equivalent transient inductance (Lk). The open circuit inductance values at 25C (0Adc and 26 Adc) are measured and verified during production. 2. In a non-coupled multi-phase topology, the power supply sees the same inductance during transient and steady-state conditions. As a result, any attempt to lower the inductance to improve transient response has the 5. All elevated temperature measurements were verified during design but are not measured during production negative result of increasing ripple and peak currents throughout the system during steady-state operation. and therefore are for reference only. However, in a coupled inductor multi-phase topology, the interaction of magnetic fields from each phase enables an overall reduction in ripple current during steady-state operation and a lower equivalent inductance 6. DCR is measured between points a and b as shown on the mechanical drawing. during transient operation. The equivalent transient inductance per phase, as listed, represents the actual value of inductance (Lk) that would be required in an non-coupled topology to realize the same transient perfor7. Optional tape and reel packaging can be ordered by adding a T suffix to the part number (ie: PA3144AHL mance. The equivalent inductance per phase can be calculated as series inductance divided by the number of becomes PA3144AHLT). Pulse complies to the industry standard tape and reel specification EIA481. The tape phases. For more information on the operation of the coupled inductor topology, please contact Volterra. and reel for this product has the following dimensions: PA3142AHL: W=32.0, Po =16.0, Ko = 8.0 3. The rated current (Irms_TDC) is the continuous current which results in a 55° C rise of the component temperature PA3143AHL: W=44.0, Po = 16.0, Ko =7.6 above the ambient temperature (Conditions: Ta=55° C; 200LFM airflow; Tested on a Volterra evaluation board). PA3144AHL: W=56.0, Po=16.0, Ko=7.6 The peak current (Imax) is the current which causes a 20% reduction of the leakage inductance compared to no PA3145AHL: W=72, Po=16.0, Ko=8.0 load conditions at 105° C. 1 pulseelectronics.com P715.D (9/13) SMT POWER INDUCTORS Power Beads - PA314xAHL Series Coupled Inductor Mechanicals PA3142AHL PULSE PA3142AHL * All Dimensions in mm. Unless stated otherwise the tolerance on the listed dimensions are: .X ±0.2 .XX ±0.10 Schematic PRIMARY SUGGESTED LAND PATTERN Mechanicals PA3143AHL * All Dimensions in mm. Unless stated otherwise the tolerance on the listed dimensions are: .X ±0.2 .XX ±0.10 Schematic PRIMARY SUGGESTED LAND PATTERN FINAL OUTLINE 2 pulseelectronics.com P715.D (9/13) SMT POWER INDUCTORS Power Beads - PA314xAHL Series Coupled Inductor Mechanicals 8X 3.1 PA3144AHL 8x 2.7 ± 0.2mm 4X 3.6 35.5 ± 0.5 11.3 4 2 7.0 6 3 1 8 5 7 4.38x 6.16 ± 0.20mm 10.5 ± 0.5 9.0 18.0 8.0 MAX 27.0 .127 8 SURFACES * All Dimensions in mm. Unless stated otherwise the tolerance on the listed (9.0mm) dimensions are: .X ±0.2 4x 9.0mm .XX ±0.10 10.16 ± 0.10mm 1 2 3 4 5 6 7 8 Schematic 3x 3.5mm 9.0mm 4.0mm 3.1mm 4.3mm 8x 7.0mm 4X 3.70 3 1 9.90 ±0.25 5 7.0mm 8X 3.1 3.6mm 8x 4.0mm 4X 3.6 7 11.3 6.0 4 6 6 3 1 6.0 2 4 2 7.0 8 5 4.3 7 9.0 8 18.0 8X 2.40 27.0 9.00 18.0 SUGGESTED LAND PATTERN TOLERANCE ON PADS = ± 0.05 27.0 ±0.3 FINAL OUTLINE 4X 3.70 Mechanicals 3 1 9.90 ±0.25 5 7 PA3145AHL 6.0 * All Dimensions in mm. Unless stated otherwise the tolerance on the listed dimensions are: .X ±0.2 .XX ±0.10 6.0 4 2 6 8 8X 2.40 9.00 Schematic 18.0 27.0 ±0.3 PRIMARY SUGGESTED LAND PATTERN FINAL OUTLINE 3 pulseelectronics.com P715.D (9/13) SMT POWER INDUCTORS Power Beads - PA314xAHL Series Coupled Inductor DCR Measurement Location PA314XHL a 1 b 2 For More Information Pulse Worldwide Headquarters 12220 World Trade Drive San Diego, CA 92128 U.S.A. Pulse Europe Zeppelinstrasse 15 71083 Herrenberg Germany Tel: 858 674 8100 Fax: 858 674 8262 Tel: 49 7032 7806 0 Fax: 49 7032 7806 12 Pulse China Headquarters B402, Shenzhen Academy of Aerospace Technology Bldg. 10th Kejinan Road High-Tech Zone Nanshan District Shenzen, PR China 518057 Tel: 86 755 33966678 Fax: 86 755 33966700 Pulse North China Room 2704/2705 Super Ocean Finance Ctr. 2067 Yan An Road West Shanghai 200336 China Pulse South Asia 135 Joo Seng Road #03-02 PM Industrial Bldg. Singapore 368363 Pulse North Asia 3F No. 198, Zhongyuan Road Zhongli City Taoyuan County (32068) Taiwan Tel: 86 21 62787060 Fax: 86 2162786973 Tel: 65 6287 8998 Fax: 65 6287 8998 Tel: 886 3 4356768 Fax: 886 3 4356823 Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. © Copyright, 2013. Pulse Electronics, Inc. All rights reserved. 4 pulseelectronics.com P715.D (9/13)