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BQ25618 - I2C Controlled 1-Cell 1.5-A Battery Charger

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.

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.

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Other Datasheets by Texas Instruments

Part Number Description
BQ25619 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

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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.
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