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Product attributes Property Value
Manufacturer Texas Instruments
Product Series
Packaging Cut Tape (CT) | Tape & Reel (TR)
Function Battery Protection
Battery Chemistry Lithium Ion
Number of Cells 2 ~ 4
Fault Protection Over Voltage
Interface -
Operating Temperature -40°C ~ 110°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-VDFN Exposed Pad
Supplier Device Package 8-SON (3x3)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Texas Instruments BQ29443DRBR is a dedicated Battery Protection IC for Lithium Ion battery packs. It is designed to monitor and protect 2 to 4 series-connected cells, specifically providing Over Voltage protection. This IC is housed in a compact 8-VDFN Exposed Pad package and is rated for a wide operating temperature range from -40°C to 110°C, making it a robust choice for demanding applications.

  • High-Temperature Tolerance: Operates reliably up to 110°C, suitable for high-stress environments.
  • Precise Over Voltage Protection: Dedicated to preventing overvoltage conditions in multi-cell packs.
  • Wide Temperature Range: Functions from -40°C to 110°C, covering industrial and automotive-like conditions.
  • Compact Solution: The 8-VDFN package minimizes PCB space requirements.

Power Tool Battery Packs

The BQ29443DRBR is well-suited for 2 to 4 cell Lithium Ion packs in power tools, providing critical Over Voltage protection to prevent cell damage during charging.

Electric Bicycles (E-Bikes)

In e-bike battery packs, this IC ensures each cell remains within safe voltage limits, enhancing the safety and lifespan of the battery system.

Portable Electronics

For laptops and other portable devices with multi-cell batteries, the BQ29443DRBR offers a compact protection solution with a wide operating temperature range.

UPS Systems

Uninterruptible Power Supplies using Lithium Ion batteries can benefit from the Over Voltage protection and high-temperature tolerance (up to 110°C) of this IC.

Garden Equipment

Battery-powered lawn mowers and trimmers require robust protection. This IC's wide temperature range makes it suitable for outdoor use in various climates.

Q: What is the function of the BQ29443DRBR?
A: It is a Battery Protection IC designed for Lithium Ion batteries.
Q: How many cells does this protection IC support?
A: It supports 2 to 4 series-connected Lithium Ion cells.
Q: What fault protection does it provide?
A: It provides Over Voltage protection.
Q: What is the operating temperature range?
A: The operating temperature range is -40°C to 110°C (TA).
Q: What package is the BQ29443DRBR available in?
A: It is available in an 8-VDFN Exposed Pad package.
Base Product Number : BQ29443
2-4 Cells 8-VDFN Battery Management Battery Protection BMS Lithium Ion Over Voltage Texas Instruments
Q: What is the function of the BQ29443DRBR?
A: It is a Battery Protection IC designed for Lithium Ion batteries.
Q: How many cells does this protection IC support?
A: It supports 2 to 4 series-connected Lithium Ion cells.
Q: What fault protection does it provide?
A: It provides Over Voltage protection.
Q: What is the operating temperature range?
A: The operating temperature range is -40°C to 110°C (TA).
Q: What package is the BQ29443DRBR available in?
A: It is available in an 8-VDFN Exposed Pad package.