bq24715J

www.ti.com bq24715J SLUSBQ1 – AUGUST 2013 2-3 Cell NVDC-1 Battery Charger Controller Check for Samples: bq24715J FEATURES 1 6-24V Input SMBus NVDC-1 2-3S Battery Charger Controller System Instant-on Operation with No Battery or Deeply Discharged Battery Ultra-Fast Transient Response of 100 µs Ultra-Low Quiescent Current of 500 µA and High PFM Light Load Efficiency 80% at 20mA load to Meet Energy Star and ErP Lot6 Switching Frequency: 600 kHz, 800 kHz, 1MHz Programmable System/Charge Voltage (16 mV/step), Input/Charge Current (64 mA/step) with High Accuracy – ±0.5% Charge Voltage Regulation – ±3% Input/Charge Current Regulation – ±2% 40x Input/16x Discharge Current Monitor Output Support Battery LEARN Function Maximize CPU Performance with Deeply Discharged Battery or No Battery Integrated NMOS ACFET and RBFET Driver 20-pin 3.5 x 3.5 mm2 QFN Package APPLICATIONS Ultrabook, Notebook, and Tablet PC Industrial and Medical Equipment Portable Equipment DESCRIPTION The bq24715J is a NVDC-1 synchronous battery charge controller with low quiescent current, high light load efficiency for 2S or 3S Li-ion battery charging applications, offering low component count. The power path management allows the system to be regulated at battery voltage but does not drop below the programmable system minimum voltage. The device provides N-channel ACFET and RBFET drivers for the power path management. It also provides driver of the external P-channel battery FET. The lo...