bq24765

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq24765 SLUS999A – NOVEMBER 2009 – REVISED NOVEMBER 2015 bq24765 SMBus-Controlled Multi-Chemistry Battery Charger With Integrated Power MOSFETs 1 Features Integrated Power MOSFETs, NMOS-NMOS, Synchronous Buck Converter >95% Efficiency Frequency 700kHz Allows Smaller Inductor (5 mm x 5 mm) Thermal Regulation Loop for Safety, Limit TJ = 120°C Adaptive Driver Dead-time and 99.5% Maximum Effective Duty Cycle High-Accuracy Voltage and Current Regulation – ±0.5% Charge Voltage Accuracy – ±3% Charge Current Accuracy – ±3% Adapter Current Accuracy – ±2% Input Current Sense Amp Accuracy Integration – Integrated Power MOSFETs – Input Current Comparator – Internal Soft-Start Safety – Thermal Regulation Loop and Thermal Shutdown – Dynamic Power Management (DPM) – Power FETs Over Current Protection 7 V–24 V AC/DC-Adapter Operating Range Simplified SMBus Control – Charge Voltage DAC (1.024 V–19.2 V) – Charge Current DAC (128 mA–8.064 A) – Adapter Current Limit DPM DAC (256 mA–11.008 A) Status and Monitoring Outputs – AC/DC Adapter Present With Adjustable Voltage Threshold – Input Current Comparator, With Adjustable Threshold and Hysteresis – Current Sense Amplifier for Current Drawn From Input Source Charge Any Battery Chemistry: Li+, LiFePO4, NiCd, NiMH, Lead Acid (2, 3, and 4 Li-Ion Cells) Charge Enable Pin (CE) Energy Star Low Iq – < 10-μA Battery Current with Adapter R...