Hi,
I am designing a handheld portable device which incorporates a DSK C6713.
The device will be powered by rechargeable batteries and would ideally be recharged when the main supply is connected to. And while the batteries are charging, the board is powered by the mains. Just like the battery management for a laptop. The device is currently powered by 4AA batteries. How would one go about in the battery management design to allow such a recharging management similar to that of a laptop.
In addition, could I use bq27520? However, i require a voltage input of 5V and a current rating that would allow me to use the device for at least 5 hours on a single charge.
Would my battery options be restricted should i use bq27520? As it seems only for a single cell lithium ion battery. And these batteries usually only have 3.6 V. Higher voltages battery have lower current rating.
Any advice?
cheers