BQ24120RHLTG4

Зарядное устройство для 1-элементной литий-ионной, Li-Pol батареи, 16В вход, 4.2В/2А зарядка, QFN-20.

The BQ24120RHLTG4 is a synchronous switch-mode 1-cell Li-ion Charger with 2A FET and enhanced EMI performance. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status and charge termination. It charges the battery in three phases: conditioning, constant current and constant voltage. Charge is terminated based on user-selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. It automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode when VCC supply is removed.