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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 Current, Timer, Voltage
Fault Protection Over Current, Over Temperature, Over Voltage
Charge Current - Max 1A
Battery Pack Voltage 4.52V (Max)
Voltage - Supply (Max) 13.5V
Interface I2C, USB
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 24-WFQFN Exposed Pad
Supplier Device Package 24-WQFN (4x4)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Texas Instruments BQ25619RTWT is a 1A single-cell Lithium Ion/Polymer battery charger supporting a maximum battery voltage of 4.52V. It features both I2C and USB interfaces for flexible system integration and control. The device is equipped with over-current, over-temperature, and over-voltage protection. Housed in a 24-WFQFN package, it is designed for space-efficient, high-performance portable electronics.

  • High Voltage Support: Regulates up to 4.52V, enabling the use of high-energy-density battery cells.
  • Dual Interface: Offers both I2C and USB interfaces for maximum design flexibility.
  • Reliable Protection: Over Current, Over Temperature, and Over Voltage protection ensures safe charging in all conditions.
  • Efficient Power Management: The switch-mode architecture provides high efficiency, reducing heat generation.

High-Voltage Single-Cell Devices

Devices using high-voltage Li-Ion cells (up to 4.52V) can maximize their energy capacity with the BQ25619RTWT's precise voltage regulation.

USB-Powered Consumer Electronics

Smartphones and tablets can benefit from the integrated USB interface for simple power path management and the I2C interface for system-level control.

Portable Speakers

These devices require robust charging from USB sources; the BQ25619RTWT's 1A charge current and protection features ensure safe and reliable operation.

Digital Cameras

Cameras with high-capacity single-cell batteries can be charged efficiently, with the I2C interface allowing for status reporting to the camera's display.

Handheld Gaming Devices

The combination of USB and I2C interfaces makes this charger flexible for various system architectures in portable gaming hardware.

Q: What battery chemistry is supported?
A: It is designed for Lithium Ion/Polymer batteries.
Q: How many cells does it charge?
A: It supports a single-cell (1) configuration.
Q: What is the maximum charge current?
A: The maximum charge current is 1A.
Q: What is the maximum battery voltage?
A: The maximum battery regulation voltage is 4.52V.
Q: What interfaces are available?
A: It supports both I2C and USB interfaces.
Q: What fault protections are included?
A: It includes Over Current, Over Temperature, and Over Voltage protection.
Base Product Number : BQ25619
1A 24-WFQFN 4.52V Battery Charger I2C Lithium Ion/Polymer Switch-Mode Battery Charger USB
Q: What battery chemistry is supported?
A: It is designed for Lithium Ion/Polymer batteries.
Q: How many cells does it charge?
A: It supports a single-cell (1) configuration.
Q: What is the maximum charge current?
A: The maximum charge current is 1A.
Q: What is the maximum battery voltage?
A: The maximum battery regulation voltage is 4.52V.
Q: What interfaces are available?
A: It supports both I2C and USB interfaces.
Q: What fault protections are included?
A: It includes Over Current, Over Temperature, and Over Voltage protection.