SLG59M1639V

AI生成コンテンツ: Li-Ion battery charging differs significantly from Lead-Acid charging by eliminating the Float phase and requiring charging current to drop to zero after Absorption. Shortening or skipping Absorption can improve Li-Ion battery life. Slow charging enhances capacity, and deeply discharged batteries need a trickle charge before bulk charging. For energy harvesting systems with low power loads, prioritizing extended battery life over full charge is beneficial. Incorporating Li-Ion charging into a boost converter design involves adding a resistor and a GreenFET controlled by GreenPAK logic. Battery voltage monitoring with analog comparators enables efficient charge control, optimizing energy use and battery longevity. Design files include GreenPAK Designer project files and schematics.

AI生成コンテンツ: Extending the maximum operating current of GreenFET load switches can be achieved by using two lower-current devices in parallel, maintaining protection features and reducing overall RDSON. Parallel operation balances current sharing due to low RDSON variation in Renesas's MOSFET design. Examples include using pairs of SLG59H1006V and SLG59M1714V devices, with detailed operational waveforms and recommended PCB layouts provided. High-current single devices like SLG59M1568V are also covered. The document includes application diagrams, oscilloscope captures, and design guidelines for high-current load switch applications.

AI生成コンテンツ: Multiplexing two power rails to a common output is achieved using Renesas’ GreenFET load switches, specifically the dual-channel SLG59M1639V or single-channel SLG59M1748C devices. These switches handle 1.5V to 5V power rails up to 2-2.2A, provide true reverse current blocking, and fast detection to prevent voltage drops and reverse current flow. Proper control of ON signals ensures smooth switchover between power sources, minimizing transient disturbances. Increasing load capacitance or resistance can reduce voltage drop during switching. This solution suits consumer electronics like tablets and smartphones, enabling seamless switching between internal batteries and external power supplies.