Controller IC Chip - MOFSET BQ24765RUVT BQ24765 chip for laptop - Integrated Laptop Chip (Ref.1-CHIP0347)

Controller IC Chip - MOFSET BQ24765RUVT BQ24765 chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0347)

SMBus-Controlled Multi-Chemistry Battery Charger with Integrated Power MOSFETs

The bq24765 is a high-efficiency, synchronous battery charger with two integrated 30-m0 NMOS power MOSFETs, and an integrated input current comparator, offering low component count for space-constraint, multi-chemistry battery charging applications. 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 using SMBus. The bq24765 has switching frequency of 700 kHz. The bq24765 charges 2, 3 or 4 series Li+ cells, and is available in a 34-pin, 3.50 mm x 7.00 mm VOFN package.

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-pA Battery Current with Adapter Removed - < 1 mA Input DCINA Current When Adapter Present and Charge Disabled 34-pin, 3.50 mm x 7.00 mm QM Package

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