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BQ25125 - Highly Integrated Battery Charger

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.

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

Part Number Description
BQ25120 Highly Integrated Battery Charge Management Solution
bq25120A Highly Integrated Battery Charge Management Solution
BQ25121 Highly Integrated Battery Charge Management Solution
bq25100 250-mA Single Cell Li-Ion Battery Chargers
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Full PDF Text Transcription

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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.
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