This lumped-element (SPICE) model data simulates frequency-dependent b

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This lumped-element (SPICE) model data simulates frequency-dependent b

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SPICE Model LPO4812
This lumped-element (SPICE) model data simulates frequency-dependent behavior Coilcraft power inductors within frequency range shown accompanying table each individual inductor. data represents de-embedded measurements, described below. Effects different customer circuit board traces, board materials, ground planes interactions with other components included have significant effect when comparing simulation measurements inductors using other production verification instruments fixtures. value frequency-dependent variable resistor RVAR1 calculated from: RVAR1 shown each value accompanying table. frequency RVAR1 resistance Ohms value frequency-dependent variable resistor RVAR2 calculated from: RVAR2 shown each value accompanying table. frequency RVAR2 resistance Ohms some part numbers, models provided: using variable inductance element (LVAR) other using fixed inductance value (L). Chose whose frequency range best suits your application. value frequency-dependent inductance LVAR calculated from: LVAR shown accompanying table. frequency LVAR inductance
Lumped Element Modeling Method
Measurements were made using impedance analyzer. Fixture compensation performed remove fixture effects. bias current applied measurements. lumped element values were determined optimizing simulation model average measurements. This method results model that represents closely possible typical frequency-dependent behavior component within model frequency range. equivalent lumped element model schematic shown below. Each model should analyzed only input output ports. Conclusions based individual lumped element values erroneous.
Disclaimer
Coilcraft makes every attempt provide accurate measurement data software, representative components, usable format. Coilcraft, however, disclaims warrants relating data software, whether expressed implied, including without limitation implied warranties merchantability fitness particular purpose. Coilcraft cannot will liable special, incidental, consequential, indirect similar damages occurring with data and/ software.
Specifications subject change without notice.
Document 267-1 Revised 02/19/03
SPICE Model Coilcraft LPO4812 Power Inductors
Part number LPO4812-102M LPO4812-152M LPO4812-222M LPO4812-332M LPO4812-472M LPO4812-682M LPO4812-103K LPO4812-153K LPO4812-223K LPO4812-333K LPO4812-473K LPO4812-683K LPO4812-104K LPO4812-154K LPO4812-224K Frequency limit model (MHz) Lower Upper LVAR Coefficients 1000 1070 49.8 1.00 1.00 6500 6500 5950 3280 3280 2360 1840 0.091 0.081 0.092 0.101 0.212 0.282 0.406 0.616 0.880 1.27 1.97 2.74 3.94 6.44 9.70 (pF) 9.80 12.0 7.84 3.95 2.25 1.85 1.39 1.17 1.17 1.04 1.27 1.29 1.16 0.950 1.08 8.36E-05 8.18E-05 1.06E-04 1.06E-04 1.58E-04 5.95E-05 5.95E-05 5.95E-05 4.00E-04 4.95E-04 5.92E-04 1.13E-03 1.22E-03 6.70E-04 1.34E-03 0.395 1.00 0.761 1.50 0.864 2.20 0.814 3.30 1.08 4.70 1.48 6.80 1.70 10.0 3.26 15.0 5.78 22.0 7.22 33.0 13.6 47.0 27.2 68.0 29.6 64.0 89.2 1.40E-02 1.59E-02 3.10E-02 5.14E-02 7.66E-02 8.83E-02 1.92E-01 2.32E-01 2.41E-01 4.81E-01 6.49E-01 8.92E-01 1.45E+00 1.45E+00 2.89E+00 9.33E-06 9.45E-06 8.42E-06 9.59E-06 9.59E-06 9.83E-06 9.83E-06 9.83E-06 9.83E-06 9.83E-06 9.83E-06 9.83E-06 9.83E-06 9.83E-06 9.83E-06 (µH)
Specifications subject change without notice.
Document 267-16 Revised 02/19/03

This lumped-element (SPICE) model data simulates frequency-dependent b

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