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BQ29443DRBR The Texas Instruments BQ29443DRBR is a battery protection IC designed for 2 to 4-cell Li-Ion battery packs. It offers overvoltage protection and operates over a wide temperature range.
Mfr Part #:

BQ29443DRBR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ29443DRBR is a battery protection IC designed for 2 to 4-cell Li-Ion battery packs. It offers overvoltage protection and operates over a wide temperature range.
✓ Total Stock: 22,780 pcs
$ Price Range: $1.00

BQ29443DRBR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Unit Electronics Co.,Limited ✓
Non-Authorised Inventory information
14,500 pcs
On Request
14500 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
8,280 pcs
On Request
8280 pcs On Request 1 On Request On Request 1219 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BQ29443DRBR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Fault Protection
Function
Maximum Input Voltage
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
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BQ29443DRBR Description

Short technical summary and product information.

The BQ29443DRBR from Texas Instruments is a secondary overvoltage protection IC specifically designed for 2-series, 3-series, or 4-series cell Li-Ion battery packs. It incorporates a high-accuracy precision overvoltage detection circuit to safeguard battery performance and longevity.

 

Key electrical specifications include a maximum input voltage (Vin max) of 28V and a typical operating current of 2 µA. The device provides overvoltage protection with a nominal threshold of 4.5V, and specific battery overvoltage protection limits ranging from 4.475V to 4.525V. The operating temperature range is -40°C to 85°C.

 

This IC is suitable for applications requiring reliable battery protection, such as notebook computers, power tools, and portable equipment. It features an external capacitor-controlled delay timer and a single pin output drive. The package is an 8-SON (3x3) with surface mount mounting type.

 

Designed for second-level protection, the BQ29443DRBR ensures the safety and integrity of Li-Ion battery packs by monitoring cell voltages and initiating protection measures when overvoltage conditions are detected.

BQ29443DRBR Quick Information

Product Type: Battery Protection IC
Canonical Name: BQ29443DRBR Battery Protection IC for 2-4 Cell Li-Ion
Subcategory: Battery Protectors

BQ29443DRBR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BQ29443DRBR Estimated Pricing

Qty Low High
1+ $1.00 $1.00

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ29443DRBR Features

  • Protects 2 to 4-cell Li-Ion batteries.
  • High-accuracy overvoltage detection.
  • Wide operating temperature range.
  • Low typical operating current.
  • Surface mount 8-SON package.

BQ29443DRBR Applications

  • Used in notebook computers.
  • Suitable for power tools.
  • Ideal for portable equipment.
  • Instrumentation applications.

BQ29443DRBR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the BQ29443DRBR?

The operating temperature range is -40°C to 85°C.

What is the maximum input voltage for the BQ29443DRBR?

The maximum input voltage is 28V.

How many series cells can the BQ29443DRBR protect?

It can protect 2, 3, or 4 series cells.

What type of battery chemistry is this IC designed for?

This IC is designed for Lithium Ion battery chemistry.

What is the typical operating current of the BQ29443DRBR?

The typical operating current is 2 µA.

What is the package type for the BQ29443DRBR?

The package is 8-SON (3x3) and 8-VDFN Exposed Pad.

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