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Brian Chu writes:
Batteries often serve as the main energy source for portable electronic devices. Although they depend on batteries, portable consumer electronic products, such as GPS devices and multi-media players, often consume energy directly from an ac-dc wall adapter or accessory power adapter (or “Auto Adapter”) when the battery is low or the device is in a stationary mode. Due to their cost effectiveness over their useful life, rechargeable batteries are often used for the power source of the portable electronic device. Attributes such as “relatively high energy density” and “maintenance free” make Lithium-Ion (Li-Ion) batteries popular in the portable consumer electronic products. Refer to the application note, AN1088, “Selecting the Right Battery System For cost Sensitive Portable Applications While maintaining Excellent Quality” (DS01088) for characteristics of Li-Ion batteries. Some examples of how to properly design with Li-Ion batteries will be discussed in this application note.
Designing A Li-Ion Battery Charger and Load Sharing - [Link]
One Response to “MCP73837 – Designing A Li-Ion Battery Charger with Load Sharing”
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September 18th, 2012 at 6:40 pm
We’re designing a gadget that will be powered by 2 AAA ni-mh batteries, and we want to be able to charge them by usb port. Looking in the datasheet of MAX712 we find out we could use it, but it says is necessary at least 6V (usb port only delivers 5,5V). Which alternative can we use?
Sincerely, @Rachel from Dc Adapter