NT1742中文资料Secondary Protection ICs数据手册Neotec规格书

描述 Description

NT1742 is an accurate secondary battery protection IC for 2/3/4-cell Lithium-Lon/Lithium-Polymer battery packs, on which a precise voltage detection circuit with a specific reference is embedded.NT1742 monitors individual cell voltages. If any cell voltage reaches or goes over the specified voltage and lasts for a period longer than the delay time set, NT1742 activates an external MOSFET to blow the three-terminal protection fuse, permanently disabling the battery pack.NT1742 has a CTL pin to control the output voltage of the CO pin. The CTL pin can also offer an over-temperature protection via PTC thermistor. If the thermistor temperature exceeds the over-temperature threshold and lasts for a period longer than the delay time, the output pin activates the external MOSFET to blow external fuse.

特性 Features

*2-,3-or4-CellSecondaryProtection
*HighAccuracyOverchargeVoltage:4.225Vto4.50V�b25mV
*LowPowerConsumption:At3.5Vforeachcell:3.5uAmax.(+25℃)
*HighInput-VoltageDevice
-AbsoluteMaximumRating:40V
-OperatingVoltagerange:4.5Vto26V
*OutputControlFunctionwithCTLPin
*OverTemperatureProtectionwithPTCThermistor-Optional
*HighRippleRejectionAbilityforPowerSupply
*Package:TSSOP-8L、DFN-8L

应用 Application

*NotebookPCs*PortableInstrumentatio
• *MedicalandTestEquipment