Product - Secondary Protection ICs
Product - Secondary Protection ICs
NT1793
NT1793
| Part Number | Cells Protected | Stack Function | Protection FETs | Protection for | Note | Package | ||
| Over-Voltage | Under-Voltage | Temperature | ||||||
| NT1793 | 3/4-cell | - | Fuse | +/-25mV | - | - | - | NMSOP-8L UMSOP-8L |
Downloads
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Overview
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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. |
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Features
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| *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, UMSOP-8L |
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Applications
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| *Notebook PCs *Portable Instrumentation *Medical and Test Equipment |
