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External pass-FET gate driver to switch between adapter and battery power. HGATE High-side synchronous switching MOSFET gate drive output. 15 LGATE Low-side synchronous switching MOSFET gate drive output. 16 PHASE / LX Inductor switching node connection point. Common Symptoms of a Faulty 8681L IC
Includes automatic AC adapter detection, in-rush current limiting, and protections against battery over-voltage, over-current, reverse connection, and thermal shutdown. Jotrin Electronics 8681l ic datasheet
: When the system is ON, the IC automatically allocates all remaining AC adapter current (not used by the system) to the battery charger to minimize charging time. External pass-FET gate driver to switch between adapter
Defines the valid supply voltage (2.2V to 7.5V) and input voltage thresholds (VIH, VIL) for proper logic level interpretation. 16 PHASE / LX Inductor switching node connection point
: High-side and low-side gate driver connections engineered to toggle external N-channel MOSFET switches that drive the inductor power stage.
Understanding the : A Guide to Laptop Battery Charging Controllers
: The computer can easily change charging limits through software.