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Product attributes Property Value
Manufacturer Texas Instruments
Product Series bqSWITCHER™
Packaging Cut Tape (CT) | Tape & Reel (TR)
Battery Chemistry Lithium Ion/Polymer
Number of Cells 1
Current - Charging Constant - Programmable
Programmable Features Current, Timer
Fault Protection Over Temperature, Over Voltage
Charge Current - Max 2A
Battery Pack Voltage 4.2V
Voltage - Supply (Max) 16V
Interface -
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 20-VFQFN Exposed Pad
Supplier Device Package 20-VQFN (3.5x4.5)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Texas Instruments BQ24108RHLR is a high-efficiency switch-mode battery charger for single-cell Lithium Ion and Lithium Polymer batteries. It supports a charge current up to 2A and a battery regulation voltage of 4.2V. The device includes over-temperature and over-voltage protection and is housed in a compact 20-VFQFN package, suitable for space-limited portable electronics.

  • High Charge Current: Supports up to 2A, enabling faster charging cycles for single-cell batteries.
  • Dual Chemistry Support: Compatible with both Lithium Ion and Lithium Polymer cells, offering design flexibility.
  • Comprehensive Protection: Over-voltage and over-temperature protection enhance system safety and battery lifespan.
  • Space-Saving Package: The 20-VFQFN package is ideal for compact, portable device designs.

Smartphones and Tablets

The BQ24108RHLR's 2A charge current and 4.2V target make it ideal for fast charging of single-cell Li-Ion batteries in modern handheld devices.

Portable Power Banks

This switch-mode charger efficiently charges the internal single-cell battery of power banks, enabling higher current with less heat generation.

Bluetooth Speakers

For portable audio equipment, this IC provides a reliable charging solution for the embedded 4.2V Li-Polymer battery.

Digital Cameras

The compact VFQFN package and high charge current are well-suited for space-constrained camera designs that require quick battery top-ups.

Wearable Devices

Its small footprint and support for Li-Polymer chemistry make it a candidate for charging batteries in smartwatches and fitness trackers.

Q: What battery chemistries are supported?
A: It supports Lithium Ion and Lithium 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 2A.
Q: What is the target battery voltage?
A: The target battery voltage is 4.2V.
Q: What protections are included?
A: It includes Over Temperature and Over Voltage protection.
Q: What is the package type?
A: It comes in a 20-VFQFN Exposed Pad package.
Base Product Number : BQ24108
1 Cell 2A 4.2V Battery Charger Lithium Ion Lithium Polymer Switch-Mode Charger VFQFN-20
Q: What battery chemistries are supported?
A: It supports Lithium Ion and Lithium 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 2A.
Q: What is the target battery voltage?
A: The target battery voltage is 4.2V.
Q: What protections are included?
A: It includes Over Temperature and Over Voltage protection.
Q: What is the package type?
A: It comes in a 20-VFQFN Exposed Pad package.