NT1793-A1M1中文資料新德科技數(shù)據(jù)手冊(cè)PDF規(guī)格書

Descriptions

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.

Features

? Secondary Protection for 3- or 4-Cell

? High Accuracy Over Charge Sense Voltage: ? 25mV

? Programmable Delay Time, or Optional Internal

Delay Time (1.8sec typically)

? High Input-Voltage Device

Absolute Maximum Rating: 40V

Operating Voltage Range: 5.5V to 26V

? Low Power Consumption:

At 3.5V for each cell: 3.3μA max. (+25℃)

?Package: NMSOP-8L

Applications

? Notebook PCs

? Portable Instrumentation

? Medical and Test Equipment