Controller IC Chip - 1-4 Cell Li+ Battery SMBus Charge MOFSET BQ07A BQ24707A chip for laptop - Integrated Laptop Chip (Code 1-CHIP0332)

Controller IC Chip - 1-4 Cell Li+ Battery SMBus Charge MOFSET BQ07A BQ24707A chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0332)

The bq24707 and bq24707A devices are high-efficiency, synchronous battery chargers, offering low component count for space-constrained, multi-chemistry battery charging applications. SMBus controlled input current, charge current, and charge voltage DACs allow for very high regulation accuracies that can be easily programmed by the system power management micro-controller. The IC uses the intemal input current register or external ILIM pin to throttle down PWM modulation to reduce the charge current.
The IC provides an IFAULT output to alarm if any MOSFET fault or input over current occurs. This alarm output allows users to turn off input power selectors when the fault occurs. Meanwhile, an independent comparator with internal reference is available to monitor input current, output current, or output voltage. The IC charges one-, two-, three-, or four-series Li+ cells, and is available in a 20-pin, 3.5 x 3.5 mm QFN package.

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% 20x 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-pA Off-State Battery Discharge Current 20-pin 3.5 mm x 3.5 mm QFN Package bq24707: ACOK Delay Default 1.3 s bq24707A: ACOK Delay Default 1.2 ms

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