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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 Current, Over Temperature, Over Voltage
Charge Current - Max 4.5A
Battery Pack Voltage 4.2V
Voltage - Supply (Max) 17V
Interface I2C
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Supplier Device Package 24-VQFN (4x4)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Texas Instruments BQ24190RGER is a highly integrated single-cell Lithium Ion/Polymer battery charger with an I2C interface. It supports charge currents up to 4.5A and a battery voltage of 4.2V. The device includes comprehensive fault protection against overcurrent, overtemperature, and overvoltage conditions. Packaged in a 24-VFQFN with exposed pad, it is designed for space-constrained portable electronics requiring fast, safe charging.

  • Fast Charging: Up to 4.5A charge current reduces charge time for high-capacity cells.
  • Digital Control: I2C interface allows dynamic adjustment of charge parameters.
  • Comprehensive Safety: Overcurrent, overvoltage, and overtemperature protections ensure reliable operation.
  • Industrial Temperature Range: Operates from -40°C to 85°C for versatile deployment.

Tablets and Laptops

With 4.5A charge current and I2C control, the BQ24190RGER is well-suited for tablets and ultrabooks with single-cell Li-Ion batteries requiring fast charging and system communication.

Portable Power Tools

For compact cordless screwdrivers and small power tools using 1S packs, this charger's high current capability reduces downtime between uses.

Smart Home Hubs

Smart speakers and home automation hubs with internal backup batteries benefit from the I2C interface for precise charge management and status reporting.

Wireless Speakers

Portable Bluetooth speakers with large 1S cells can leverage the 4.5A charge rate for rapid recharging, while overvoltage protection ensures safe operation.

Handheld GPS Devices

Outdoor handheld GPS units require reliable charging; the -40°C to 85°C range supports use in cold climates.

Q: What battery chemistry is supported?
A: The BQ24190RGER supports Lithium Ion/Polymer batteries.
Q: How many cells can it charge?
A: It is designed for single-cell (1) configurations.
Q: What is the maximum charge current?
A: The maximum charge current is 4.5A.
Q: What is the battery regulation voltage?
A: The battery voltage is 4.2V.
Q: What interface is used for control?
A: It features an I2C interface for configuration and monitoring.
Q: What protections are built in?
A: It includes Over Current, Over Temperature, and Over Voltage protection.
Base Product Number : BQ24190
24-VFQFN 4.2V 4.5A Battery Charger BQ24190 I2C Lithium Ion/Polymer Switch-Mode Charger
Q: What battery chemistry is supported?
A: The BQ24190RGER supports Lithium Ion/Polymer batteries.
Q: How many cells can it charge?
A: It is designed for single-cell (1) configurations.
Q: What is the maximum charge current?
A: The maximum charge current is 4.5A.
Q: What is the battery regulation voltage?
A: The battery voltage is 4.2V.
Q: What interface is used for control?
A: It features an I2C interface for configuration and monitoring.
Q: What protections are built in?
A: It includes Over Current, Over Temperature, and Over Voltage protection.