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BQ24172 Datasheet Li-ion And Li-polymer Stand-alone Battery Charger

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq24170, bq24172 SLUSAD2C – NOVEMBER 2010 – REVISED APRIL 2015 bq2417x 1.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The bq2417x device is a highly integrated standalone Li-Ion and Li-Polymer switched-mode battery charger with two integrated N-channel power MOSFETs.

The device offers a constant-frequency synchronous PWM controller with high-accuracy regulation of input current, charge current, and voltage.

The bq2417x closely monitors the battery pack temperature to allow charge only in a preset temperature window.

Key Features

  • 1 1.6-MHz Synchronous Switched-Mode Charger with 4-A Integrated N-MOSFETs.
  • Up to 94% Efficiency.
  • 30-V Input Rating with Adjustable Overvoltage Protection.
  • 4.5-V to 17-V Input Operating Voltage Range.
  • Battery Charge Voltage.
  • bq24170: 1-, 2-, or 3-Cell with 4.2 V/Cell.
  • bq24172: Adjustable Charge Voltage.
  • High Integration.
  • Automatic Power Path Selector Between Adapter and Battery.
  • Dynamic Power Management.

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