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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM3532 датащи(PDF) 35 Page - Texas Instruments |
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LM3532 датащи(HTML) 35 Page - Texas Instruments |
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35 / 52 page  LM3532 www.ti.com SNVS653E – JULY 2011 – REVISED AUGUST 2015 8.2.2 Detailed Design Procedure Table 21. Suggested Application Circuit Component List CURRENT/VOLTAGE COMPONENT MANUFACTURER'S PART NUMBER VALUE SIZE RATING (RESISTANCE) L COILCRAFT 10 µH 3.9 mm x 3.9 mm x 1.7 mm 1 A (RDC = 0.2 Ω) LPS4018-103ML COUT Murata 1 µF 0805 50 V GRM21BR71H105KA12L CIN Murata 2.2 µF 0603 10 V GRM188R71A225KE15D 8.2.2.1 Inductor Selection The LM3532 is designed to work with a 10-µH to 22-µH inductor. When selecting the inductor, ensure that the saturation rating is high enough to accommodate the applications peak inductor current . The inductance value must also be large enough so that the peak inductor current is kept below the LM3532's switch current limit. See Maximum Output Power for more details. Table 22 lists various inductors that can be used with the LM3532. The inductors with higher saturation currents are more suitable for applications with higher output currents or voltages (multiple strings). The smaller devices are geared toward single string applications with lower series LED counts. Table 22. Suggested Inductors MANUFACTURER PART NUMBER VALUE SIZE CURRENT RATING DC RESISTANCE TDK VLS252010T-100M 10 µH 2.5 mm × 2 mm × 1 mm 590 mA 0.712 Ω TDK VLS2012ET-100M 10 µH 2 mm × 2 mm × 1.2 mm 695 mA 0.47 Ω TDK VLF301512MT-100M 10 µH 3.0 mm × 2.5 mm × 1.2mm 690 mA 0.25 Ω TDK VLF4010ST-100MR80 10 µH 2.8 mm × 3 mm × 1 mm 800 mA 0.25 Ω TDK VLS252012T-100M 10 µH 2.5 mm × 2 mm × 1.2mm 810 mA 0.63 Ω TDK VLF3014ST-100MR82 10 µH 2.8 mm × 3 mm × 1.4mm 820 mA 0.25 Ω TDK VLF4014ST-100M1R0 10 µH 3.8 mm × 3.6 mm × 1.4 mm 1000 mA 0.22 Ω Coilcraft XPL2010-103ML 10 µH 1.9 mm × 2 mm × 1 mm 610 mA 0.56 Ω Coilcraft LPS3010-103ML 10 µH 2.95 mm × 2.95 mm × 0.9 mm 550 mA 0.54 Ω Coilcraft LPS4012-103ML 10 µH 3.9mm × 3.9mm × 1.1mm 1000 mA 0.35 Ω Coilcraft LPS4012-223ML 22 µH 3.9 mm × 3.9 mm × 1.1 mm 780 mA 0.6 Ω Coilcraft LPS4018-103ML 10 µH 3.9 mm × 3.9 mm × 1.7 mm 1100 mA 0.2 Ω Coilcraft LPS4018-223ML 22 µH 3.9 mm × 3.9 mm × 1.7 mm 700 mA 0.36 Ω Copyright © 2011–2015, Texas Instruments Incorporated Submit Documentation Feedback 35 Product Folder Links: LM3532 |
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