NT1770A中文資料新德科技數(shù)據(jù)手冊(cè)PDF規(guī)格書

Description

The NT1770 series are the 2/3/4/5-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 NT1770 series with state-of-the-art

design and process.

The NT1770 series have three types of

discharge over-current protection and one type of

charge over-current protection.

The NT1770 series have three types of overtemperature during charging, over-temperature

during discharging and under-temperature during

charging protection.

Features

? High accuracy voltage detection circuit

? Over-charge detection : ?25mV

? Over-discharge detection : ?80mV

? Discharge over-current-1 detection : ?10

? Discharge over-current-2 detection : ?10

? Load short-circuiting detection : ?10

? Charge over-current detection : ?8mV/?10mV

? Temperature detection : ?4℃

? High withstand voltage

? Absolute maximum rating: 30V

? Operating voltage range: 3.5V to 25V

? Low power consumption

? Supply current: 6.6uA max. (Ta=+25℃)

? Delay times of over-charge, load short-circuiting, charge

over-current and over/under temperature are generated

by an internal circuit (fixed).

? Delay times of over-discharge, discharge over-current-1

and -2 are controlled by external capacitors.

? Built-in breaking wire detector function

? Package: 20 pin TSSOP

? Lead-free, Sn 100, Halogen-free

Applications

? Lithium-ion rechargeable battery pack

? Lithium-polymer rechargeable battery pack

? Lithium-iron phosphate rechargeable battery pack