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TPS65983B Datasheet(PDF) 39 Page - Texas Instruments |
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TPS65983B Datasheet(HTML) 39 Page - Texas Instruments |
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39 / 117 page ![]() Time (200 Ps/div) 0 0 1 1 2 2 3 3 4 4 5 5 6 6 D006 I VBUS VBUS Time (200 Ps/div) -2 -1 0 0 2 1 4 2 6 3 8 4 10 5 12 6 D005 I VBUS VBUS 39 TPS65983B www.ti.com SLVSDM6A – OCTOBER 2016 – REVISED OCTOBER 2016 Product Folder Links: TPS65983B Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated Figure 24. PP_5V0 Current Limit With a Hard Short (Extended Time Base) Figure 25. PP_5V0 Current Limit With a Soft Short (2 Ω) 9.3.3.5 Internal HV Power Delivery The TPS65983B has an integrated, bi-directional high-voltage switch that is rated for up to 3 Amps of current. The TPS65983B is capable of sourcing or sinking high-voltage power through an internal switch path designed to support USB-PD power up to 20 V at 3 A of current. VBUS and PP_HV are both rated for up to 22 V as determined by Recommended Operating Conditions, and operate down to 0 V as determined by Absolute Maximum Ratings. In addition, VBUS is tolerant to voltages up to 22 V even when PP_HV is at 0 V. Similarly, PP_HV is tolerant up to 22 V while VBUS is at 0 V. The switch structure is designed to tolerate a constant operating voltage differential at either of these conditions. Figure 21 shows a simplified circuit for the switch from PP_HV to VBUS. |
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