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Product attributes Property Value
Manufacturer Texas Instruments
Product Series
Packaging Cut Tape (CT) | Tape & Reel (TR)
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1
Current - Charging Constant - Programmable
Programmable Features -
Fault Protection Over Temperature, Over Voltage
Charge Current - Max 2.5A
Battery Pack Voltage 3.7V
Voltage - Supply (Max) 6V
Interface I2C
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 49-UFBGA, DSBGA
Supplier Device Package 49-DSBGA (2.8x2.8)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Texas Instruments BQ24168YFFT is a compact single-cell Lithium Ion/Polymer battery charger with I2C interface. It delivers up to 2.5A charge current for 3.7V batteries, ideal for wearables and portable electronics. The device features Over Temperature and Over Voltage protection, ensuring safe and reliable charging. Its ultra-small 49-UFBGA package is perfect for space-constrained designs, and the -40°C to 85°C range supports diverse applications.

  • Ultra-compact: 49-UFBGA package saves critical board space in miniaturized devices.
  • Digital control: I2C interface enables precise charging parameter adjustment.
  • Fast charging: Up to 2.5A current reduces charging time significantly.
  • Safety features: Over Temperature and Over Voltage protection prevent damage.
  • Wide temperature operation: Reliable from -40°C to 85°C for versatile use.

Compact Wearables

Charge single-cell Lithium Ion/Polymer batteries in smartwatches and fitness bands, using the tiny 49-UFBGA package and I2C control for precise charging.

Portable Audio Devices

Power wireless earbuds and portable speakers with 2.5A charging capability, ensuring quick recharge cycles with Over Voltage protection.

Handheld Gaming Consoles

Support 3.7V battery packs in portable gaming devices, delivering reliable performance in a space-saving package.

Medical Wearables

Enable safe charging in insulin pumps and health monitors that require compact size and robust Over Temperature protection.

Smart Home Sensors

Operate from -40°C to 85°C, making it ideal for outdoor or unconditioned environments where temperature extremes are common.

Q: What battery chemistry does it support?
A: It supports Lithium Ion/Polymer batteries.
Q: How many cells can it charge?
A: It is designed for a single cell (1 cell).
Q: What is the maximum charge current?
A: The maximum charge current is 2.5A.
Q: What is the battery pack voltage?
A: The battery pack voltage is 3.7V.
Q: What fault protection is available?
A: It includes Over Temperature and Over Voltage protection.
Q: What interface does it use?
A: It uses an I2C interface.
Base Product Number : BQ24168
2.5A 3.7V 49-UFBGA Battery Charger I2C Lithium Ion/Polymer Single Cell
Q: What battery chemistry does it support?
A: It supports Lithium Ion/Polymer batteries.
Q: How many cells can it charge?
A: It is designed for a single cell (1 cell).
Q: What is the maximum charge current?
A: The maximum charge current is 2.5A.
Q: What is the battery pack voltage?
A: The battery pack voltage is 3.7V.
Q: What fault protection is available?
A: It includes Over Temperature and Over Voltage protection.
Q: What interface does it use?
A: It uses an I2C interface.