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전자부품 데이터시트 검색엔진 |
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BM81810MUF-M 데이터시트(PDF) 67 Page - Rohm |
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BM81810MUF-M 데이터시트(HTML) 67 Page - Rohm |
67 / 78 page ![]() BM81810MUF-M . 67/75 TSZ02201-0A3A0AS00510-1-2 © 2020 ROHM Co., Ltd. All rights reserved. 15.May.2020 Rev.001 TSZ22111 • 15 • 001 www.rohm.com EMC Layout Guide Introduce the plan that can design on the PCB as EMC measures. Measures by the board pattern •Wire AVDD line briefly thickly. (1) •Wire the current loop of Boost DC/DC briefly thickly. (2) Measures by the external component •Insert a common mode filter or a beads coil in the AVDD line and form the EMC filter. (3) •Place output capacitor and small capacitor (10pF - 1,000pF) in parallel. (4) •Insert the snubber circuit in SW pin. (Assumed the efficiency becomes worse) (5) (2) Figure 106. EMI Circuit 1 Figure 107. EMI Circuit 2 |
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