Part Number | Cells Protected | Stack Function | Protection FETs | Protection for | Note | Package | ||
Over-Voltage | Under-Voltage | Temperature | ||||||
NT1724 | 2-cell | - | N-MOS | +/-20mV | +/-50mV | - | - | SOT-23-6 |
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 |