BQ24105RHLR

TEXAS INSTRUMENTS  BQ24105RHLR.  芯片, 充电管理, 锂离子/聚合物, 20-QFN

The is a standalone synchronous switch-mode Li-ion Charger with 2A FET. It targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status and charge termination. The system-controlled version provides additional inputs for full charge management under system control. The bqSWITCHER™ 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.

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High-accuracy voltage and current regulation

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High-side battery current sensing

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Battery temperature monitoring

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Automatic sleep mode for low power consumption

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Reverse leakage protection prevents battery drainage

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Thermal shutdown and protection

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Built-in battery detection

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Green product and no Sb/Br

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.