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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