+ Post New Thread
Results 1 to 3 of 3
  1. #1
    Newbie level 3
    Points: 258, Level: 3

    Join Date
    Jun 2018
    Posts
    3
    Helped
    0 / 0
    Points
    258
    Level
    3

    Charge Management Controller problem

    Hi,
    I have designed a battery charging circuit with MCP73831 chip, after testing it for about 4h i ended with a swollen battery, this is the circuit i used
    Click image for larger version. 

Name:	Untitled.png 
Views:	3 
Size:	13.4 KB 
ID:	155961
    the battery i'am using is 3.7v, 200mAh
    Click image for larger version. 

Name:	45e380b9-05d3-4987-9a3b-64130b998cf2.jpg 
Views:	2 
Size:	73.0 KB 
ID:	155962
    the VDD is 4.8v, could anyone help me to found the problem ?
    Thanks.

    •   AltAdvertisement

        
       

  2. #2
    Super Moderator
    Points: 260,253, Level: 100
    Awards:
    1st Helpful Member

    Join Date
    Jan 2008
    Location
    Bochum, Germany
    Posts
    45,447
    Helped
    13829 / 13829
    Points
    260,253
    Level
    100

    Re: Charge Management Controller problem

    Which MCP73831-X variant are you using? Does the selected Vreg fit the battery specification?



    •   AltAdvertisement

        
       

  3. #3
    Newbie level 3
    Points: 258, Level: 3

    Join Date
    Jun 2018
    Posts
    3
    Helped
    0 / 0
    Points
    258
    Level
    3

    Re: Charge Management Controller problem

    i'm using MCP73831-2, i mesured the output voltage and it is 4.2v



--[[ ]]--