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TUSB7340 数据表(PDF) 29 Page - Texas Instruments |
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TUSB7340 数据表(HTML) 29 Page - Texas Instruments |
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29 / 122 page  7.2.2.5 5-V VBUS Options There are two options that can be implemented to generate the 5-V source; the first one is using a 5-V regulator, and the second one is using the IDE power connector. 5V VBUS OPTIONS NOTE: USE LOW ESR CAP NOTE: USE LOW ESR CAP OPTION 1: 5V REGULATOR OPTION 2: 5V FROM IDE CONNECTOR VSENSE BOOT PH REG_5V BOARD_12V IDE_5V IDE_5V REG_5V BOARD_5V J27 NOPOP 1 2 L1 15uH_NF R37 3.16K_NF 1% C78 0.01uF_NF +5V GND0 GND1 +12V J5 IDE_PW R_CONN 4 3 2 1 + C73 330uF_NF R36 10K_NF 1% D6 MBRS540T3_NF C75 0.01uF_NF C74 0.01uF_NF J26 HDR2X1 M .1 1 2 C76 22uF C77 22uF_NF U6 TPS5450_NF BOOT 1 NC 2 NC_ 3 VSENSE 4 ENA 5 GND 6 VIN 7 PH 8 Figure 7-7. Reference Design 5 www.ti.com TUSB7320, TUSB7340 SLLSE76Q – MARCH 2011 – REVISED MARCH 2024 Copyright © 2024 Texas Instruments Incorporated Submit Document Feedback 29 Product Folder Links: TUSB7320 TUSB7340 |
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