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Switch-mode lithium-ion battery charger

Switch-mode lithium-ion battery charger
More and more lithium-ion batteries are being used in all kinds of appliances. These require a battery charger and for this Maxim’s MAX745 is ideal. It provides all the functions necessary for charging such batteries or packs of them. It provides a regulated charging current of up to 4 A without getting hot, and a regulated voltage with a total error at the battery terminals of only ±0.75%. It uses low-cost, 1% resistors to set the output voltage, and a lowcost n-channel MOSFET as the power switch.
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