Микросхемы и комплектующие BQ24123RHLTG4

Зарядное устройство для 2-элементной литий-ионной , Li-Pol батареи, 16В вход, 8.4В/2A зарядка, QFN-20

The BQ24123RHLTG4 is a synchronous switch-mode 2-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.

• Enhanced EMI performance
• High-accuracy voltage and current regulation
• High-side battery current sensing
• Battery temperature monitoring
• Automatic sleep mode for low power consumption
• Reverse leakage protection prevents battery drainage
• Thermal shutdown and protection
• Built-in battery detection
• Green product and no Sb/Br

Области применения

Управление Питанием, Медицинское, Переносные Устройства, Аудио, Промышленное, Потребительская Электроника Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.