The IP2326 is a boost charging chip for 2-cell/3-cell series lithium batteries that supports 15W fast charging.

Features:
15W synchronous switching boost charging
Boost charging efficiency of 94%
Built-in power MOSFET
Integrated charging balancing circuit
Supports fast charging input request; can request fast charging input based on battery voltage to improve charging efficiency
Adjustable constant voltage charging via external resistors
Pin-configurable for 2-series or 3-series lithium battery charging
Charging current adjustable via external resistor
Automatically requests fast charging input based on battery voltage
Automatically adjusts input current, adaptive to adapter load
Supports NTC temperature protection during charging
Input over-voltage and under-voltage protection, adjustable via external resistors
Charging timeout protection, adjustable via external resistors
Supports LED charging status indication
500KHz switching frequency, supports 2.2μH inductor
Output over-current, over-voltage, and short-circuit protection
IC over-temperature protection
Input voltage tolerance up to 25V
ESD 4KV
QFN24 package

Applications:
Charging for 2-series/3-series lithium batteries/lithium-ion batteries

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