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LM2594HVN-ADJ Arkusz danych(PDF) 10 Page - Texas Instruments |
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LM2594HVN-ADJ Arkusz danych(HTML) 10 Page - Texas Instruments |
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10 / 41 page  LM2594, LM2594HV SNVS118C – DECEMBER 1999 – REVISED APRIL 2013 www.ti.com TYPICAL CIRCUIT AND LAYOUT GUIDELINES Fixed Output Voltage Versions CIN — 68 μF, 35V, Aluminum Electrolytic Nichicon “PL Series” COUT — 120 μF, 25V Aluminum Electrolytic, Nichicon “PL Series” D1 — 1A, 40V Schottky Rectifier, 1N5819 L1 — 100 μH, L20 Select components with higher voltage ratings for designs using the LM2594HV with an input voltage between 40V and 60V. Adjustable Output Voltage Versions CIN — 68 μF, 35V, Aluminum Electrolytic Nichicon “PL Series” COUT — 120 μF, 25V Aluminum Electrolytic, Nichicon “PL Series” D1 — 1A, 40V Schottky Rectifier, 1N5819 L1 — 100 μH, L20 R1 — 1 kΩ, 1% CFF — See Application Information Section Figure 20. Typical Circuits and Layout Guides As in any switching regulator, layout is very important. Rapidly switching currents associated with wiring inductance can generate voltage transients which can cause problems. For minimal inductance and ground loops, the wires indicated by heavy lines should be wide printed circuit traces and should be kept as short as possible. For best results, external components should be located as close to the switcher lC as possible using ground plane construction or single point grounding. If open core inductors are used, special care must be taken as to the location and positioning of this type of inductor. Allowing the inductor flux to intersect sensitive feedback, lC groundpath and COUT wiring can cause problems. 10 Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated Product Folder Links: LM2594 LM2594HV |
Podobny numer części - LM2594HVN-ADJ |
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Podobny opis - LM2594HVN-ADJ |
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