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BQ25619 - I2C Controlled 1-Cell 1.5-A Battery Charger

Download the BQ25619 datasheet PDF. This datasheet also covers the BQ25618 variant, as both devices belong to the same i2c controlled 1-cell 1.5-a battery charger family and are provided as variant models within a single manufacturer datasheet.

General Description

The BQ25618/619 integrates charge, boost converter and voltage protection in a single device.

It offers the industry's lowest termination current for switching chargers to charge wearable devices by full battery capacity.

Key Features

  • Single chip solution to charge wearable accessories from adapter or battery.
  • High-efficiency, 1.5MHz, synchronous switch-mode buck charger.
  • 95.5% charge efficiency at 0.5A and 94.5% efficiency at 1A.
  • ±0.5% charge voltage regulation (10mV step).
  • I2C programmable JEITA profile of charge voltage, current and temperature thresholds.
  • Low termination current with high accuracy 20mA±10mA.
  • Small inductor form factor of 2.5 x 2.0 x 1.0mm3.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (BQ25618-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
BQ25618 I2C Controlled 1-Cell 1.5-A Battery Charger
bq25600 I2C Controlled 3.0-A Single Cell Battery Charger
bq25600C I2C Controlled 3.0-A Single Cell Battery Charger
bq25600D I2C Controlled 3.0-A Single Cell Battery Charger
bq25601 1-Cell 3-A Buck Battery Charger

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.

View original datasheet text
BQ25618, BQ25619 SLUSDF8F – JUNE 2019 – REVISED FEBRUARY 2025 BQ25618/619 I2C Controlled 1-Cell 1.5A Battery Charger with 20mA Termination and 1A Boost Operation 1 Features • Single chip solution to charge wearable accessories from adapter or battery • High-efficiency, 1.5MHz, synchronous switch-mode buck charger – 95.5% charge efficiency at 0.5A and 94.5% efficiency at 1A – ±0.5% charge voltage regulation (10mV step) – I2C programmable JEITA profile of charge voltage, current and temperature thresholds – Low termination current with high accuracy 20mA±10mA – Small inductor form factor of 2.5 x 2.0 x 1.0mm3 • Boost mode with output from 4.6V to 5.