2-cell Li-ion Battery Protection IC with High-accuracy Overcurrent Detection Designed for Smartphone and Tablet PC

Nisshinbo Micro Devices has introduced the new two-cell Li-ion/polymer battery protection IC NB7200 that features the industry-leading high-accuracy overcharge, over-discharge, and discharge overcurrent detection and improved current detection accuracy by using an external resistor. Major features of this device include charge/discharge overcurrent detectors with high accuracy of ±1.0 mV. Lower-resistance of sense resistor by overcurrent detector achieves heat reduction on the board, and low consumption current and low standby current achieve longer driving time with batteries of small capacity.

Features

• Overcharge detection voltage range of each cell: 4.2 V to 4.8V, Accuracy: ±15 mV

• Overdischarge detection voltage range of each cell: 2.0 V to 3.2 V, Accuracy: ±35 mV

• Industry-leading High-accuracy Two-step Discharge Overcurrent Detection

• High-accuracy Short-circuit Detection Voltage

• High-accuracy 0 V battery Charging Inhibition Voltage

• A leadless and ultra-small package, DFN1616-8-GM (1.6 × 1.6 × 0.4 mm) is adopted.

Applications

• Smart Phone, Tablet PC

• Cleaner