I have this solar light controller which I designed.
It has been working fine for years. I removed it to do some upgrading. I really have not done much to it yet.
I am now reading 5.5V at J2-1 with nothing connected. It is normally an analog input for the solar panel. My VDD is 4.9V. I cannot see how it could be an analog input gone bad with the voltage on the input higher than my VDD voltage.
With the chip pulled I read my input voltage of 12.5V on J2. My input voltage.
I am figuring it is a short under the board. Between my battery voltage connector (J5) and J2. Maybe a solder ball or something that broke loose. Since it was one of my very first projects it is no beyond the realm of possibilities that I got sloppy.
Before I tear the controller apart even more I thought I would get the opinion of the gang to see if my suspicions are warranted. Thanks.
It has been working fine for years. I removed it to do some upgrading. I really have not done much to it yet.
I am now reading 5.5V at J2-1 with nothing connected. It is normally an analog input for the solar panel. My VDD is 4.9V. I cannot see how it could be an analog input gone bad with the voltage on the input higher than my VDD voltage.
With the chip pulled I read my input voltage of 12.5V on J2. My input voltage.
I am figuring it is a short under the board. Between my battery voltage connector (J5) and J2. Maybe a solder ball or something that broke loose. Since it was one of my very first projects it is no beyond the realm of possibilities that I got sloppy.
Before I tear the controller apart even more I thought I would get the opinion of the gang to see if my suspicions are warranted. Thanks.
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