BQ24125RHLR

TEXAS INSTRUMENTS  BQ24125RHLR  芯片, 充电器, 锂离子/锂聚合物, 1A, VQFN20

The is a single chip switchmode Li-ion and Li-polymer Charge Management IC with 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.

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Enhanced EMI performance

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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.