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BQ25125 - Highly Integrated Battery Charger

General Description

The BQ25125 is a highly integrated battery charge management IC that integrates the most common functions for wearable devices: Linear charger, regulated output, load switch, manual reset with timer, and battery voltage monitor.

Key Features

  • Increases system operation time between charges.
  • Configurable 300-mA buck regulator (1.8 V default).
  • 700-nA (typical) Iq with buck converter enabled (No Load).
  • Configurable load switch or 100-mA LDO output (1.8 V default).
  • Up to 300-mA charge current for fast charging.
  • 0.5% Accurate battery voltage regulation (configurable from 3.6 V to 4.65 V in 10-mV steps).
  • Configurable termination current down to 500 µA.
  • Simple voltage.

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Other Datasheets by Texas Instruments

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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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BQ25125 SLUSDL9A – JUNE 2019 – REVISED JANUARY 2021 BQ25125 Low IQ Highly Integrated Battery Charge Management Solution For Wearables and IoT 1 Features • Increases system operation time between charges – Configurable 300-mA buck regulator (1.8 V default) – 700-nA (typical) Iq with buck converter enabled (No Load) – Configurable load switch or 100-mA LDO output (1.8 V default) – Up to 300-mA charge current for fast charging – 0.5% Accurate battery voltage regulation (configurable from 3.6 V to 4.65 V in 10-mV steps) – Configurable termination current down to 500 µA – Simple voltage based battery monitor – Watchdog timer enabled by default – VDPPM Loop disabled – VINDPM Disabled by default to support low voltage charging • Highly integrated solution with small footprint – 2.5 mm x 2.