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BQ24120 Datasheet Li-ion/li-polymer Charger

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design bq24120, bq24123, bq24125 SLUS688H – MARCH 2006 – REVISED NOVEMBER 2015 bq2412x Single-Chip Switched-Mode, Li-Ion,.

General Description

The bqSWITCHER™ series are highly integrated Liion and Li-polymer switched-mode charge management devices 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, in a small, thermally enhanced QFN package.

The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage.

Key Features

  • 1 Enhanced EMI Performance.
  • Integrated Power FETs For Up To 2-A Charge Rate.
  • Suitable For 1-, 2-, or 3-Cell Li-Ion and Li-Polymer Battery Packs.
  • Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle.
  • High-Accuracy Voltage and Current Regulation.
  • Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions.
  • 20-V Absolut.

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