描述 Description

NT1793 is an accurate secondary battery protection IC for 3/4-cell Lithium-Ion/Lithium-Polymer battery packs, on which a precise voltage detection circuit with a specific reference is embedded.NT1793 monitors individual cell voltages. If any cell voltage reaches or goes over the specified voltage for a period longer than the delay time set, NT1793 activates an external MOSFET to blow the three-terminal protection fuse, permanently disabling the battery pack.For the delay time control, NT1793 provides a built-in internal delay circuit (1.8sec) and an external capacitor whichever will be activated according to the situation.

特性 Features

*SecondaryProtectionfor3-or4-Cell
*HighAccuracyOverChargeSenseVoltage:25mV
*ProgrammableDelayTime,orOptionalInternalDelayTime(1.8sectypically)
*HighInput-VoltageDevice
-AbsoluteMaximumRating:40V
-OperatingVoltageRange:5.5Vto26V
*LowPowerConsumption:At3.5Vforeachcell:3.3μAmax.(+25℃)
*Package:NMSOP-8L,UMSOP-8L

應(yīng)用 Application

*NotebookPCs*PortableInstrumentatio
? *MedicalandTestEquipment