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BQ25121 - Highly Integrated Battery Charge Management Solution

Download the BQ25121 datasheet PDF. This datasheet also covers the BQ25120 variant, as both devices belong to the same highly integrated battery charge management solution family and are provided as variant models within a single manufacturer datasheet.

General Description

The bq2512x 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

  • 1 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 100mA LDO Output (Load Switch by 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (BQ25120-etcTI.pdf) that lists specifications for multiple related part numbers.

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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
BQ25125 Highly Integrated Battery Charger
bq25100 250-mA Single Cell Li-Ion Battery Chargers
bq25100A 250-mA Single Cell Li-Ion Battery Chargers

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
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community BQ25120, BQ25121 SLUSBZ9C – AUGUST 2015 – REVISED SEPTEMBER 2016 bq2512x 700-nA Low IQ Highly Integrated Battery Charge Management Solution for Wearables and IoT 1 Features •1 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 100mA LDO Output (Load Switch by 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 • Highly Integrated Solution with Small Footprint – 2.5 mm x 2.