SMT Power Inductors Power Beads - 2 - Phase Coupled Inductors for Notebook Vcore Halogen Free For use only with Volterra VT13xx chipset Height: 4.0mm Max Footprint:11.8mm x 11.4mm Max (PA2143NL) 9.9mm x 10.0mm Max (PA2156NL) Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C 7 Leakage1 Inductance (nH ±20%) Part Number Open Circuit2 Inductance (Lm+Lk) (1-4) (2-3) Coupling2 Ratio (TYP) 31 200 200 3 31 240 240 4 Irated/Phase3 (Adc) DCR/Phase (mW Nom) Saturation Current4 (Adc @25°C) 2*Lk Lm+Lk Heating Current5 per Phase (Adc) .26±10% >40 18 35 .36±13% >40 9 28 (1-4) (2-3) PA2143NL - 11.8MM x 11.4MM x 4.0MM MAX PA2143NL 50 PA2156NL - 9.9MM x 10.0MM x 4.0MM MAX PA2156NL 50 NOTES: 1. The leakage inductance (Lk) is equivalent to the phase inductance in a non-coupled design. The leakage inductance represents the actual inductance that would be required in an non-coupled design to achieve the same transient performance. Only the value of 2*Lk (ie: series leakage inductance) can be measured directly. The value of 2*Lk is measured between pins (1-2) with (4,3) shorted. 2. The open circuit inductance (Lm+Lk) can be measured directly on either pins (1-4) or pins (2-3). The value of Lm/Lk defines the coupling ratio. 3. The Irated/phase represents the DC current per phase that the coupled inductor can tolerate (with a 5Adc/phase imbalance) before saturating. 4. The heating current (Idc) is the DC current required to raise the component temperature by approximately 40C. The components performance varies depending on the system conditions. 5. In high volt*time applications, additional heating in the component can occur due to core losses in the inductor which may neccessitate derating the current in order to limit the temperature rise of the component. To determine the approximate total losses (or temperature rise) for a given application, the coreloss and temperature rise curves can be used. 6. The temperature of the component (ambient plus temperature rise) must be within the stated operating temperature range. 7. Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (i.e. PA2143NL becomes PA2143NLT). Pulse complies with industry standard tape and reel specification EIA481. The tape and reel for this product has a width (W=24mm), pitch (Po=16mm) and depth (Ko=4.1mm) Mechanicals Schematics PA2143NL �� � ���� ��� ����� ��������� ����������������� ���� ����� ��� ���� ���� ���� ���� � ���� ���� �������������������� Weight . . . . . . . . . . . . . . 2.1 grams Tape & Reel . . . . . . . . . . 1000/reel Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 ���� ���� ��� �� USA 215 781 6400 � � � ����������� ����� � �� �� ���� ��� �� ����� � ���� ���� ���� ���� Germany 49 7032 7806 0 1 � ���� �� ���� � �������� � ��������� ���� ���� Singapore 65 6287 8998 pulseelectronics.com Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768 P657.C (04/11) SMT Power Inductors Power Beads - 2 - Phase Coupled Inductors for Notebook Vcore Mechanicals Schematics PA2156NL .378 ±.012 9.60 ±.30 4 3 .100 2.5 .02 0.5 ��������� 4X .382 ±.012 9.70 ±.30 PA2156NL 1 2 � � � .08 2.03 Weight . . . . . . . . . . . . . . 2.1 grams Tape & Reel . . . . . . . . . . 1000/reel Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 .142 3.60 .142 3.60 ����������� ����� � �� �� ���� ��� .147 ±.010 3.75 ±.25 .08 2.0 �� ����� � .05 1.3 .08 4X 2.1 USA 215 781 6400 .313 7.9 � Germany 49 7032 7806 0 2 Singapore 65 6287 8998 pulseelectronics.com Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768 P657.C (04/11) SMT Power Inductors Power Beads - 2 - Phase Coupled Inductors for Notebook Vcore 400 350 300 PA2156NL (Lm+Lk) PA2156NL PA2156NL (2*Lk) For More Information Pulse Worldwide Headquarters 12220 World Trade Dr. San Diego, CA 92128 U.S.A. Pulse Europe Einsteinstrasse 1 D-71083 Herrenberg Germany Tel: 858 674 8100 Fax: 858 674 8262 Tel: 49 7032 7806 0 Fax: 49 7032 7806 135 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 Tel: 86 21 62787060 Fax: 86 2162786973 Tel: 65 6287 8998 Fax: 65 6287 8998 Pulse North Asia 3F, No. 198 Zhongyuan Road Zhongli City Taoyuan County 320 Taiwan R. O. C. Tel: 886 3 4356768 Fax: 886 3 4356823 (Pulse) Fax: 886 3 4356820 (FRE) 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, 2011. Pulse Electronics, Inc. All rights reserved. 3 pulseelectronics.com P657.C (04/11)