Hi all,
I'm having a strange issue with MCP73831/2. I'm charging my LiPo at 220mAh with 4.7K RProg.
So, once I'm done, it charges the battery well for a few days and sometimes even weeks. Then suddenly out of the blue it blows up, and when I diagnose it, it shows that VBat and GND have a short circuit.
Sometimes it occurs when its charging, and sometimes it occurs out of the blue when it's simply connected to the battery, and not charging.
My circuit design follows the example circuit given by Microchip, and has 4.7uF as bypass between VDD and GND as well as between VBAT and GND.
Please help.
I'm attaching a pic of our circuit to this thread.