usa 858 674 8100 germany 49 7032 7806 0 singapore 65 6287 8998 shanghai 86 21 54643211 / 2 china 86 755 33966678 taiwan 886 3 4641811 www.pulseelectronics.com 1 p685.d (1/11) smt power inductors power beads - pa131xahl series coupled inductors electrical specifications @ 25c operating temperature - 40c to +130c notes: 1. in a non-coupled multi-phase topology, the power supply sees the same induc - tance 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 interac - tion 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 that would be required in an non-coupled topology to realize the same transient performance. this value is achieved by core and winding geometry and is not directly measured by pulse. for more information on the operation of the coupled inductor topology, please contact volterrra. 2. the rated current per phase is based on volterras testing of the pulse coupled inductors. 3. the magnetizing inductance per phase is the measured inductance (at 0adc) across each phase when all other phases are open-circuit. 4. the nominal value of dcr/phase is for reference only. for production testing, the maximum limit is used. gen1.5 coupled inductors (pa131xahl) enables higher efficiency compared to the gen1.0 coupled inductors (pa131xnl) due to lower switching losses in the same package size for use only with volterra chipsets halogen free and rohs compliant pulse part no. number of coupled phases equlavent 1 transient inductance per phase (nh) irated 2 per phase (adc) magnetizing inductance per phase 3 nh min, 0adc dcr/phase 4 (m w ) l1 l2 l3 l4 l5 typ max (1-2) (3-4) (5-6) (7-8) (9-10) PA1312AHL 2 50 40 310 310 ? ? ? 0.425 0.5 pa1313ahl 3 50 40 290 400 290 ? ? pa1314ahl 4 50 40 296 392 392 296 ? mechanical schematic PA1312AHL p a1312ahl ????? ????? ???? ???? ? ????????????? ? ??? ?????????????????????? ????? ????? ???? ???? ????? ????? ?????? ?????? ?????? ?????? weight 4 5 grams tape & reel 650/reel tray 45/tray
p a1314ahl smt power inductors power beads - pa131xahl series coupled inductors mechanical schematic pa1314ahl ????? ????? ???? ???? ?????? ?????? ?????? ?????? ???? ???? ? ?????????? ?? ? ??? ????? ????? ?????????????? ??????? ?????? ?????? ?????? ?????? weight 6 0 grams tape & reel 550/reel tray 30/tray mechanical schematic pa1313ahl p a1313ahl ????? ????? ???? ???? ? ?????????? ?? ? ??? ?????????????????????? ????? ????? ???? ???? ?????? ?????? ?????? ?????? ??????? ?????? ?????? ?????? weight 4 5 grams tape & reel 650/reel tray 45/tray www.pulseelectronics.com 2 p685.d (1/11) 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 pulse and the squarewave logo are trademarks of pulse electronics corporation, registered in the u s and other countries ? copyright, 2010 pulse electronics corporation all rights reserved for more information: pulse north american headquarters 12220 world trade dr san diego, ca 92128 u s a tel: 858 674 8100 fax: 858 674 8262 pulse south asia 150 kampong ampat #07-01/02 ka centre singapore 368324 tel: 65 6287 8998 fax: 65 6280 0080 pulse north asia no 26 kao ching rd yang mei chen taoyuan hsien taiwan, r o c 32667 tel: 886 3 4643715 fax: 886 3 4641911 pulse china headquarters b402, shenzhen academy of aerospace technology bldg 10th kejinan rd high-tech zone nanshan district shenzen, pr china 518057 tel: 86 755 33966678 fax: 86 755 33966700 pulse north china room 1503 xinyin building no 888 yishan rd shanghai 200233 china tel: 86 21 32181071 fax: 86 21 32181396 pulse european headquarters einsteinstrasse 1 d-71083 herrenberg germany tel: 49 7032 7806 0 fax: 49 7032 7806 12
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