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TPS62684 Datasheet(PDF) 20 Page - Texas Instruments |
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TPS62684 Datasheet(HTML) 20 Page - Texas Instruments |
20 / 27 page TPS62684 SLVSAC5 – APRIL 2014 www.ti.com Thermal, Lifetime Information and Maximum Output Current (continued) (5) Proper PCB layout with a focus on thermal performance results in a reduced junction-to-ambient thermal resistance RθJA and thereby reduces the device junction temperature, TJ. The maximum peak output current of 1600mA for TPS62684 is defined by its internal current limit. The maximum dc output current over lifetime (100k hours at TJ= 105°C) is 890mA. The device can supply peak output currents above 890mA, so long as there are corresponding output currents below 890mA such that the average output current remains below 890mA, while keeping the junction temperature below 105°C. Operating at output currents above 890mA at junction temperatures above 105°C reduces the lifetime by electromigration effects. For output currents above 960mA, a minimum supply voltage of 3.85V is recommended. 20 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: TPS62684 |
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