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bq25895 - I2C Controlled Single Cell 5-A Fast Charger

Description

The BQ25895 is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Lipolymer battery.

The devices support high input voltage fast charging.

Features

  • High efficiency 5-A, 1.5-MHz switch mode buck charge.
  • 93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge current.
  • Optimize for high voltage input (9 V to 12 V).
  • Low Power PFM Mode for light load operations.
  • Boost Mode operation with adjustable output from 4.5 V to 5.5 V.
  • Selectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output.
  • 93% Boost efficiency at 5 V at 1 A output.
  • Integrated control to s.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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BQ25895 SLUSC88C – MARCH 2015 – REVISED OCTOBER 2022 BQ25895 I2C Controlled Single Cell 5-A Fast Charger with MaxChargeTM for High Input Voltage and Adjustable Voltage 3.1-A Boost Operation 1 Features • High efficiency 5-A, 1.5-MHz switch mode buck charge – 93% Charge efficiency at 2 A and 91% charge efficiency at 3 A charge current – Optimize for high voltage input (9 V to 12 V) – Low Power PFM Mode for light load operations • Boost Mode operation with adjustable output from 4.5 V to 5.5 V – Selectable 500-KHz to 1.5-MHz boost converter with up to 3.1-A output – 93% Boost efficiency at 5 V at 1 A output • Integrated control to switch between charge and Boost Mode • Single input to support USB input and adjustable high voltage adapters – Support 3.