bq24735

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq24735 SLUSAK9B – SEPTEMBER 2011 – REVISED APRIL 2015 bq24735 1- to 4-Cell Li+ Battery SMBus Charge Controller for Supporting Turbo Boost Mode With N-Channel Power MOSFET Selector 1 Features 1 Adapter and Battery Provide Power to System Together to Support Intel® CPU Turbo Boost Mode SMBus Host-Controlled NMOS-NMOS Synchronous Buck Converter With Programmable 615-, 750-, and 885-kHz Switching Frequencies Automatic N-Channel MOSFET Selection of System Power Source From Adapter or Battery Driven by Internal Charge Pumps Enhanced Safety Features for Overvoltage Protection, Overcurrent Protection, Battery, Inductor and MOSFET Short-Circuit Protection Programmable Input Current, Charge Voltage, Charge Current Limits – ±0.5% Charge Voltage Accuracy up to 19.2 V – ±3% Charge Current Accuracy up to 8.128 A – ±3% Input Current Accuracy up to 8.064 A – ±2% 20× Adapter Current or Charge Current Amplifier Output Accuracy Programmable Battery Depletion Threshold, and Battery LEARN Function Programmable Adapter Detection and Indicator Integrated Loop Compensation and Soft Start Real-Time System Control on ILIM Pin to Limit Charge Current AC Adapter Operating Range: 4.5 V to 24 V 5-µA Off-State Battery Discharge Current 0.65 mA (0.8 mA Max) Adapter Standby Quiescent Current 2 Applications Portable Notebook Computers, UMPC, Ultra-Thin Notebooks, and Netbooks Handheld Termin...