- NT1674 -

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Product 产品介绍 - Protection ICs

NT1674

NT1674

Part Number	Cells Protected	Stack Function	Protection FETs	Protection for			Note	Package
				Over-Voltage	Under-Voltage	Temperature
NT1674	8~20-cell (Extra R)	V	N-MOS	+/-25mV	+/-50mV	V	-	LQFP-80L

相关资料下载

NT167xA_DS_V1.06.pdf

Overview
The NT1672/NT1673/NT1674 series are the 4~20-cell protection IC with temperature protection for lithium-ion /lithium-polymer /lithium-iron phosphate rechargeable battery pack. The high accuracy voltage, current detector and delay time circuits are built in NT1672/NT1673/NT1674 series with state-of-the-art design and process. The NT1672/NT1673/NT1674 series have three types of discharge overcurrent protection and one type of charge overcurrent protection. The NT1672/NT1673/NT1674 series have three types of over- temperature during charging, over-temperature during discharging and under-temperature during charging protection.
Features
High accuracy voltage detection circuit Overcharge detection : ±25mV Over-discharge detection : ±50mV Discharge overcurrent-1 detection : ±10% Discharge overcurrent-2 detection : ±10% Load short-circuiting detection : ±10% Charge overcurrent detection : ±8mV/±10mV Temperature detection : ±3℃/±4℃ Low power consumption Supply current: 6.6uA max. (Ta=+25℃) Delay times of overcharge, load short-circuiting, charge overcurrent and over/under-temperature are generated by an internal circuit (fixed). Delay times of over-discharge, discharge overcurrent-1 and -2 are controlled by external capacitors. 0V battery charge available or unavailable function Built-in breaking wire detector function Package: 48 pin LQFP、64 pin LQFP、80 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

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