 | Author | Message | | | karen8023 | | Posted: Fri Jul 04, 2008 9:59 am Post subject: MM1206 MM1217 MM1238 datasheet | | | | Joined: 19 May 2008 Posts: 69 | MM1206 MM1217 MM1238 datasheet: http://www.chinaicmart.com/series-MM1/MM1206.html
This IC is for protecting a lithium ion battery from overcharging, excess discharging, and overcurrent. If abnormalities occur during charging and excess voltage is applied, it has a function that turns off the external FET switch when voltage is applied to each battery beyond a specified time (overcharging detection). It also has a function that turns off the external FET switch when the voltage for each battery falls below a set voltage, to prevent excess discharge when discharging the battery (discharging detection). At that time, the IC is switched to low current consumption mode. Also, when there is a large current flow due to shorting or other reasons, there is a function for turning off the external FET switch (overcurrent detection). These functions comprise a protection circuit, with few external parts, for lithium ion batteries. | |
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