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BQ25887 - 2-A Boost-Mode Battery Charger

Description

The BQ25887 is a highly-integrated 2-A boost switchmode battery charge management device for 2-cell (2s) Li-Ion and Li-polymer battery.

The BQ25887 has I2C control with cell balancing, no OTG, and no power path.

Features

  • 1 High-efficiency 2-A, 1.5MHz switch mode boost charger.
  • 93.4% Charge efficiency at 5V adapter, 7.6-V battery, 1-A charge.
  • Optimized for USB input and 2-cell Li-Ion battery.
  • Selectable low power PFM mode for light load operation.
  • Single input to support USB input adapters.
  • Supports 3.9 V.
  • 6.2 V input voltage range with 20-V absolute maximum input voltage rating.
  • Input current limit (500 mA to 3.3 A with 100mA resolution) to.

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Full PDF Text Transcription

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Product Folder Order Now Technical Documents Tools & Software Support & Community BQ25887 SLUSD89A – FEBRUARY 2019 – REVISED MAY 2019 BQ25887 I2C Controlled 2-Cell, 2-A Boost-Mode Battery Charger With Cell Balancing For USB Input 1 Features •1 High-efficiency 2-A, 1.5MHz switch mode boost charger – 93.4% Charge efficiency at 5V adapter, 7.6-V battery, 1-A charge – Optimized for USB input and 2-cell Li-Ion battery – Selectable low power PFM mode for light load operation • Single input to support USB input adapters – Supports 3.9 V – 6.2 V input voltage range with 20-V absolute maximum input voltage rating – Input current limit (500 mA to 3.3 A with 100mA resolution) to support USB2.0, USB3.0 standard adapters – Maximum power tracking by input voltage limit up-to 5.
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