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BQ24168

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I2C 1cell 2.5A Buck battery charger with dual-input, Power Path and 6.5V OVP

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Data sheet

BQ24168

ACTIVE
Data sheet Order now

Product details

Number of series cells 1 Charge current (max) (A) 2.5 Vin (max) (V) 6 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 4.2 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 2.5 Vin (max) (V) 6 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 4.2 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFF) 49 9 mm² 3 x 3 VQFN (RGE) 24 16 mm² 4 x 4
  • High-efficiency switched-mode charger with separate power path control
    • Instantly start up system from a deeply discharged battery or no battery
  • Compatible with MaxLife™ technology for faster charging when used in conjunction with BQ27530
  • Dual input, integrated FET charger for up to 2.5-A charging
    • 20-V input rating, with overvoltage protection (OVP)
      • 6.5 V for USB input up to 1.5 A
      • 10.5 V for IN input (BQ24160, BQ24160A, BQ24161, BQ24163) up to 2.5 A
      • 6.5 V for IN input (BQ24168) up to 2.5 A
  • Safe and accurate battery management functions
    • 1% battery regulation accuracy
    • 10% charge current accuracy
  • Charge parameters programmed using I2C interface
  • Voltage-based, NTC monitoring input
    • JEITA compatible (BQ24160, BQ24160A, BQ24161B, BQ24163, BQ24168)
  • Available in small 2.8-mm × 2.8-mm 49-ball WCSP or 4-mm × 4-mm VQFN-24 packages
  • High-efficiency switched-mode charger with separate power path control
    • Instantly start up system from a deeply discharged battery or no battery
  • Compatible with MaxLife™ technology for faster charging when used in conjunction with BQ27530
  • Dual input, integrated FET charger for up to 2.5-A charging
    • 20-V input rating, with overvoltage protection (OVP)
      • 6.5 V for USB input up to 1.5 A
      • 10.5 V for IN input (BQ24160, BQ24160A, BQ24161, BQ24163) up to 2.5 A
      • 6.5 V for IN input (BQ24168) up to 2.5 A
  • Safe and accurate battery management functions
    • 1% battery regulation accuracy
    • 10% charge current accuracy
  • Charge parameters programmed using I2C interface
  • Voltage-based, NTC monitoring input
    • JEITA compatible (BQ24160, BQ24160A, BQ24161B, BQ24163, BQ24168)
  • Available in small 2.8-mm × 2.8-mm 49-ball WCSP or 4-mm × 4-mm VQFN-24 packages

The BQ24160, BQ24160A, BQ24161, BQ24161B, BQ24163, and BQ24168 are highly integrated single-cell Li-ion battery charger and system power path management devices targeted for space-limited, portable applications with high-capacity batteries. The single-cell charger has dual inputs which allow operation from either a USB port or a higher-power input supply (that is, AC adapter or wireless charging input) for a versatile solution. The two inputs are fully isolated from each other and are easily selectable using the I2C interface.

The power path management feature allows the BQ2416xx to power the system from a high-efficiency DC-DC converter while simultaneously and independently charging the battery. The power path management architecture enables the system to run with a defective or absent battery pack and enables instant system turnon even with a totally discharged battery or no battery.

The BQ24160, BQ24160A, BQ24161, BQ24161B, BQ24163, and BQ24168 are highly integrated single-cell Li-ion battery charger and system power path management devices targeted for space-limited, portable applications with high-capacity batteries. The single-cell charger has dual inputs which allow operation from either a USB port or a higher-power input supply (that is, AC adapter or wireless charging input) for a versatile solution. The two inputs are fully isolated from each other and are easily selectable using the I2C interface.

The power path management feature allows the BQ2416xx to power the system from a high-efficiency DC-DC converter while simultaneously and independently charging the battery. The power path management architecture enables the system to run with a defective or absent battery pack and enables instant system turnon even with a totally discharged battery or no battery.
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Technical documentation

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Type Title Date
* Data sheet BQ2416xx 2.5-A, Dual-Input, Single-Cell Switched-Mode Li-Ion Battery Charger with Power Path Management and I2C Interface datasheet (Rev. H) PDF | HTML 28 Jul 2022
Application note Building your own Battery Simulator 14 Oct 2013
Application note Selecting the Correct bq2416x Host Controlled Device (Rev. A) 04 Oct 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

BQ24168EVM-721 — Bq24168EVM-721 Evaluation Module

The bq24160/161/163/168 evaluation module is a complete charger module for evaluating compact,flexible, high-efficiency, USB-friendly, switch-mode charge management solution for single-cell, Li-ion and Li-polymer batteries used in a wide range of portable applications. The bq24160/161/163/168 (...)

User guide: PDF
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Application software & framework

TI-CHARGER-GUI — GUI software for use with USB2ANY & battery charging evaluation modules

The TI-CHARGER-GUI offers a web-based or standalone graphical user interface to assist in the process of evaluating, designing with, configuring or testing battery charger products. The software provides full access to registers and an easy interface to send and sequence commands.
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DSBGA (YFF) 49 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian
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