Product 產品介紹
Product 產品介紹
NT1724
NT1724
Part Number Cells Protected Overvoltage Threshold(v) Protection FETs Protection for Shutdown Current(uA) Package
Undervoltage Overcurrent Short-circuit
NT1724 2s-cell +/-20mV N-MOS +/-50mV DOC: +/-10mV, COC: +/-20mV +/-100mV <0.1uA SOT-23-6
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Overview
The NT1724 series are the 2-cell protection IC for lithium-ion/lithium-polymer rechargeable battery pack. The high accuracy voltage, current detector and delay time circuit are built in NT1724 series with state-of-art design and process.

To minimize power consumption, NT1724 series activates power-down function when an over-discharge event is detected (for power-down function “available” version).

Besides, NT1724 series performs protection functions with six external components for miniaturized PCB.
Features
High Accuracy
* Over-charge Detection : 20mV
* Over-discharge Detection : 50mV
* Discharge over-current Detection : 10mV
* Charge over-current Detection : 20mV
* Load short-circuiting Detection : 100mV
* High withstand voltage
* Absolute Maximum Rating: 40V
* Operating voltage range: 2.5V to 10V
* Low power consumption:
* Supply current : 3.2uA typ. (Ta=+25℃)
* Power-down current: 0.1uA max. (Ta=+25℃)
* Delay times are generated by an internal circuit.
* Power-down function “available” / “unavailable” is
selectable.
* 0 V battery charging function “available” / “unavailable” is
selectable.
* Package: SOT-23-6
Applications
Lithium-ion rechargeable battery pack
* Lithium-polymer rechargeable battery pack