MCP73811 for 3.7 V Li-Ion battery

Discussion in 'General Electronics Chat' started by beedees, Nov 6, 2015.

  1. beedees

    Thread Starter Member

    Mar 29, 2015
    37
    0
    Hi everybody!
    I have a 3.7 V Li-Ion battery and I'm looking for the charge circuit. I found this: a Charge Management Controller. But I don't understand if I can use MCP73811 to charge a 3.7 V battery or not.

    Sorry but it's the first time that I deal with this kind of circuit. Thanks to all!
     
  2. Dr.killjoy

    Well-Known Member

    Apr 28, 2013
    1,190
    156
    What kind of battery do you plan on using ??
     
  3. Papabravo

    Expert

    Feb 24, 2006
    10,148
    1,791
    You say you have a Li-Ion battery. The datasheet for the part says it will work with a Li-Ion battery. What exactly do you think might be a problem?

    I suggest that you spend about an hour reading the datasheet carefully. Just like when you read a novel or other work of non-fiction every time you come across a word or concept you don't understand -- track down an answer. Use Google, ask here, or phone a friend.
     
  4. Dr.killjoy

    Well-Known Member

    Apr 28, 2013
    1,190
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    I was only asking cause you can pick up a usb Li-Ion charger for a couple buck on Ebay ..
     
  5. Papabravo

    Expert

    Feb 24, 2006
    10,148
    1,791
    You're absolutely correct. I was responding to the TS/OP who specified in the original post what kind of battery and what kind of chip he was considering. In most cases it is more cost effective to buy simple things already fabricated, unless your goal is to learn something in the process of building something.
     
  6. BR-549

    Well-Known Member

    Sep 22, 2013
    2,004
    394
    The MCP73811 is a Charge Management Controller, not a charging circuit.

    So no......it will not charge your battery.

    You may use it to build a charging circuit, if you are skilled, or if you are bold and daring, and have a little money to spare.

    You will need a bunch of more components to build a charging circuit. And time. And questions.

    If time and money have priority, buy appropriate charger on ebay.

    Why not do both? A cheap charger off of ebay will allow to charge your battery, ‘til you get your charger built.

    Then compare the two. And you have a spare one.
     
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