Description
The NT1660/NT1662/NT1663/NT1664
series are the 4~20-cell secondary protection IC
for lithium-ion /lithium-polymer /lithium-iron
phosphate rechargeable battery pack. The high
accuracy voltage detector and delay time circuits
are built in NT1660/NT1662/NT1663/NT1664
series with state-of-the-art design and process.

Features
 High accuracy voltage detection circuit
 Overcharge detection : 25mV
 Low power consumption
 Supply current: 6.6uA max. (Ta=+25℃)
 Delay times of overcharge is generated by an internal
circuit (fixed).
 Built-in breaking wire detector function
 Package: 8 pin SOP、20 pin TSSOP、48 pin LQFP
 Lead-free, Sn 100%, Halogen-free

Applications
 Lithium-ion rechargeable battery pack
 Lithium-polymer rechargeable battery pack
 Lithium-iron phosphate rechargeable battery pack