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TPS65982ABZBHR датащи(PDF) 40 Page - Texas Instruments |
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TPS65982ABZBHR датащи(HTML) 40 Page - Texas Instruments |
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40 / 121 page ![]() Time (5 Ps/div) -2 -1 0 0 2 1 4 2 6 3 8 4 10 5 12 6 D004 I VBUS VBUS 1/RPP5V VREV5V0 IREV5V0 I V 40 TPS65982 SLVSD02D – MARCH 2015 – REVISED JUNE 2019 www.ti.com Product Folder Links: TPS65982 Submit Documentation Feedback Copyright © 2015–2019, Texas Instruments Incorporated Figure 21. 5V Switch I-V Curve 9.3.3.3 PP_5V0 Current Sense The current from PP_5V0 to VBUS is sensed through the switch and is available to be read digitally through the ADC. 9.3.3.4 PP_5V0 Current Limit The current through PP_5V0 to VBUS is limited to ILIMPP5V and is controlled automatically by the digital core. When the current exceeds ILIMPP5V, the current-limit circuit activates. Depending on the severity of the over- current condition, the transient response will react in one of two ways: Figure 22 and Figure 23 show the approximate response time and clamping characteristics of the circuit for a hard short while Figure 24 shows the shows the approximate response time and clamping characteristics for a soft short with a load of 2 Ω. Figure 22. PP_5V0 Current Limit with a Hard Short |
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