bq24707A

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design bq24707, bq24707A SLUSA78C – JULY 2010 – REVISED JULY 2015 bq24707x 1-4 Cell Li+ Battery SMBus Charge Controller With Independent Comparator and Advanced Circuit Protection 1 Features 1 SMBus Host-Controlled NMOS-NMOS Synchronous Buck Converter With Programmable 615 kHz, 750 kHz, and 885 kHz Switching Frequency Real-Time System Control on ILIM Pin to Limit Charge Current 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 Output Accuracy Programmable Adapter Detection and Indicator Independent Comparator With Internal Reference Integrated Soft-Start Integrated Loop Compensation AC Adapter Operating Range 5 V to 24 V 15-µA Off-State Battery Discharge Current 20-pin 3.5 mm × 3.5 mm QFN Package bq24707: ACOK Delay Default 1.3 s bq24707A: ACOK Delay Default 1.2 ms 3 Description The bq24707 and bq24707A devices are highefficiency, synchronous battery chargers, offering low component count for space-constrained, multichemistry battery charging applications. SMBus controlled input current, charge current, and charge voltage DACs allow...