The CW1051 series products are highly integrated secondary protection ICs for 3 to 5 lithium‐ion and lithium polymer battery cells connected in series.CW1051 provides overcharge protection for battery pack by measuring each cell’s voltage.

Features
-3~5 cells Application
-Overcharge Protection
Threshold from 4.100V to 4.4500V, 5mV steps, ±25mV accuracy
-Internal Overcharge Protection Delay Time
-Overcharge Delay Counter Reset Time
-Open wire protection
-Low power dissipation
Normal working4μA (25°C)
-Package type: MSOP8L, DFN3*4‐8L

Application Field
-Power Tools
-Backup power supply
-Or other lithium‐ion or lithium polymer battery packs