Seemless battery / external power

M

mat72

New Member

• Apr 10, 2006

• #1

I have a 5V device that can be powered externally or by a li ion battery. When external power is applied, I want to charge the battery.

Is there an off the shelf solution for this?

Thanks,

Matt

 

H

hyedenny

Guest

• Apr 11, 2006

• #2

Are you sure it already doesnt charge it with the external supply?

 

Papabravo

Well-Known Member

• Apr 11, 2006

• #3

Many of the companies which specialize in analog components like Linear Tech, Micrel, Maxim, and National Semiconductor have Li-Ion charging chips.