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TPS65982ABZBHR датащи(PDF) 72 Page - Texas Instruments |
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TPS65982ABZBHR датащи(HTML) 72 Page - Texas Instruments |
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72 / 121 page ![]() VIN_3V3 Valid Check BUSPOWERZ VBUS Present Configure for VBUS Power Check BUSPOWERZ Enable PP_HV as SINK Enable PP_EXT as SINK No ≤2.4 V Yes Load App Code No Yes >2.4 V I C Initiated 2 ≤0.8 V > 0.8 V 72 TPS65982 SLVSD02D – MARCH 2015 – REVISED JUNE 2019 www.ti.com Product Folder Links: TPS65982 Submit Documentation Feedback Copyright © 2015–2019, Texas Instruments Incorporated Device Functional Modes (continued) Figure 65. Dead-Battery Condition Flow Diagram 9.4.5 Application Code The TPS65982 application code is stored in an external flash memory. The flash memory used for storing the TPS65982 application code may be shared with other devices in the system. The flash memory organization shown in Figure 66 supports the sharing of the flash as well as the TPS65982 using the flash without sharing. The flash is divided into two separate regions, the Low Region and the High Region. The size of this region is flexible and only depends on the size of the flash memory used. The two regions are used to allow updating the application code in the memory without over-writing the previous code. This ensures that the new updated code is valid before switching to the new code. For example, if a power loss occurred while writing new code, the original code is still in place and used at the next boot. |
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