Battery Protection IC

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CW1031 3 Channel Secondary Protection IC


The CW1031 series products are highly integrated secondary protection ICs for 3 lithium‐ion and lithium polymer battery packs connected in series.CW1031 provides overcharge protection for battery pack by measure the voltage.


• 3 cells application

• Overcharge protection 

Threshold from 4.100V to 4.500V, 25mV steps, ±25mV accuracy

• Internal Overcharge Protection Delay Time

• Overcharge Delay Counter Reset Time

• Open wire protection

• Low power dissipation 

Normal working 4μA    (25)

• Package type: SOT23‐6


• Field Note Book

• Tablet PC

• E‐Tools

 Backup power supply

• Or other lithium‐ion or lithium polymer battery packs

Application Circuits

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