PA3142AHL PULSE | Alldatasheet
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P715.D (9/13) pulseelectronics.com 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%) Equivalent Transient (nH) Irms_TDC (Adc) 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) DCR per Phase6 (mΩ) PA3142AHL 2 100 50 40 110 200nH Min at 0Adc (25C) 150nH Min at 25Adc (25C) 100nH Min at 23Adc (105C) na na na
0.25 Typical
0.30 Max
200nH Min at 0Adc (25C) 150nH Min at 25Adc (25C) 100nH Min at 23Adc (105C) na na PA3144AHL 4 200 200nH Min at 0Adc (25C) 150nH Min at 25Adc (25C) 100nH Min at 23Adc (105C) na PA3145AHL 5 250 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) ) 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 negative result of increasing ripple and peak currents throughout the system during steady-state operation. 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 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 perfor- mance. The equivalent inductance per phase can be calculated as series inductance divided by the number of phases. For more information on the operation of the coupled inductor topology, please contact Volterra. 3. The rated current (Irms_TDC) is the continuous current which results in a 55° C rise of the component temperature above the ambient temperature (Conditions: Ta=55° C; 200LFM airflow; Tested on a Volterra evaluation board). The peak current (Imax) is the current which causes a 20% reduction of the leakage inductance compared to no load conditions at 105° C. 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. 5. All elevated temperature measurements were verified during design but are not measured during production and therefore are for reference only. 6. DCR is measured between points a and b as shown on the mechanical drawing. 7. Optional tape and reel packaging can be ordered by adding a T suffix to the part number (ie: PA3144AHL becomes PA3144AHLT). Pulse complies to the industry standard tape and reel specification EIA481. The tape and reel for this product has the following dimensions: PA3142AHL: W=32.0, Po =16.0, Ko = 8.0 PA3143AHL: W=44.0, Po = 16.0, Ko =7.6 PA3144AHL: W=56.0, Po=16.0, Ko=7.6 PA3145AHL: W=72, Po=16.0, Ko=8.0
P715.D (9/13) pulseelectronics.com SMT POWER INDUCTORS Power Beads - PA314xAHL Series Coupled Inductor PA3142AHL PA3143AHL Mechanicals PRIMARY SUGGESTED LAND PATTERN PRIMARY SUGGESTED LAND PATTERN Mechanicals Schematic Schematic PULSE PA3142AHL * All Dimensions in mm. Unless stated otherwise the tolerance on the listed dimensions are: .X ±0.2 .XX ±0.10 * All Dimensions in mm. Unless stated otherwise the tolerance on the listed dimensions are: .X ±0.2 .XX ±0.10 FINAL OUTLINE
P715.D (9/13) pulseelectronics.com SMT POWER INDUCTORS Power Beads - PA314xAHL Series Coupled Inductor PA3144AHL Mechanicals Mechanicals Schematic Schematic PA3145AHL 35.5 ± 0.5
8 SURFACES
.127 8x 6.16 ± 0.20mm 10.5 ± 0.5 10.16 ± 0.10mm 8x 2.7 ± 0.2mm 8.0 4.0mm 9.0mm 3.1mm 7.0mm 3.6mm 4.3mm 8x 7.0mm 3x 3.5mm4x 9.0mm 8x 4.0mm (9.0mm) MAX 12 34 56 78 8X 3.1 4X 3.6 9.0 4.3 18.0 27.0 7.011.3 46 82 35 71 9.90 ±0.254X 3.70 8X 2.40 46 82 6.0 6.0 9.00 18.0 27.0 ±0.3 8X 3.1 4X 3.6 9.0 4.3 18.0 27.0 7.011.3 46 82 35 71 9.90 ±0.254X 3.70 8X 2.40 46 82 6.0 6.0 9.00 18.0 27.0 ±0.3 * All Dimensions in mm. Unless stated otherwise the tolerance on the listed dimensions are: .X ±0.2 .XX ±0.10 * All Dimensions in mm. Unless stated otherwise the tolerance on the listed dimensions are: .X ±0.2 .XX ±0.10 SUGGESTED LAND PATTERN FINAL OUTLINE FINAL OUTLINE TOLERANCE ON PADS = ± 0.05 PRIMARY SUGGESTED LAND PATTERN
P715.D (9/13) pulseelectronics.com SMT POWER INDUCTORS Power Beads - PA314xAHL Series Coupled Inductor For More Information Pulse Worldwide Headquarters
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#03-02 PM Industrial Bldg. Singapore 368363 Tel: 65 6287 8998 Fax: 65 6287 8998 Pulse North Asia 3F No. 198, Zhongyuan Road Zhongli City Taoyuan County (32068) Taiwan 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. DCR Measurement Location a b PA314XHL