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TPS40490MHRHDT Fiches technique(PDF) 11 Page - Texas Instruments |
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TPS40490MHRHDT Fiches technique(HTML) 11 Page - Texas Instruments |
11 / 38 page TPS40490 www.ti.com SLVSCB4 – OCTOBER 2013 TYPICAL CHARACTERISTICS (continued) Figure 7. Switching node signals 24Vin, Vo=12V, 0A Figure 8. Switching node signals 24Vin, Vo=12V, 6A Ch1 (yellow): Vgate_high (measured on FET), Ch1 (yellow): Vdrive_external), Ch2 (blue): switching node Ch3 (purple): Vout, Ch4 (green): Vin Ch2 (blue): switching node, Ch3 (purple): Vgate_low (measured on FET), Ch4 (green): Load current Figure 9. Detailed fall time plots, 24Vin, Vo=12V 6A out Figure 10. Detailed rise time plots, 24Vin, Vo=12V 6A out Ch1 (yellow): Vgate_high (measured on FET), Ch1 (yellow): Vgate_high (measured on FET), Ch2 (blue): switching node Ch3 (purple): Vgate_low Ch2 (blue): switching node Ch3 (purple): Vgate_low (measured on FET), Ch4 (green): Load current. (measured on FET), Ch4 (green): Load current. Figure 11. Sw node 1.8MHz Figure 12. Sw node 4.7MHz operation 22Vin Vo=4.7V, Io=6A Ch1 (yellow): Switching node, Ch2 (blue): Vout Ch3 (purple): COMP, Ch4 (green): Load current. Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: TPS40490 |
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