Mfr Part #:

BQ29330DBT

Mfr Name: NA

The Texas Instruments BQ29330DBT is a 2 to 4-cell Lithium-Ion battery protection Analog Front End (AFE). It features an I2C communication interface and supports cell balancing.

✓ Total Stock: 374 pcs

$ Price Range: $2.77

BQ29330DBT Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
PROSOFT ELECTRONICS ✓ Non-Authorised Inventory information	374 pcs On Request	374 pcs	On Request	1	On Request	On Request	07+	On Request	On Request

BQ29330DBT Specifications Quick View

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Category	New Products
Manufacturer Name	NA
Features	Cell balancing, FET drive, High-side driver, I2C support, LDO output, Multi-cell support, Overcurrent in charging protection, Overcurrent in discharging protection, Separate MCU requirement, Short-current detection
Lead Style	Gull Wing
Length	530 mm
Operating Temperature	-40 °C / 110 °C
Thickness	3600 µm
Width	10.2 mm

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BQ29330DBT Description

Short technical summary and product information.

The BQ29330DBT from Texas Instruments is an Analog Front End (AFE) IC designed for 2, 3, and 4-series cell Lithium-ion or Lithium-Polymer battery pack protection. It operates within a supply voltage range of 4.5 V to 28 V and features an I2C-compatible interface for communication.

Key electrical features include integrated 2.5-V and 3.3-V low dropout regulators (LDOs), cell balancing capabilities, FET drive for charge and discharge control, and support for multi-cell configurations. The device also provides overcurrent and short-circuit protection in both charging and discharging modes, along with a watchdog timer and Power-On Reset (POR) for host control.

Packaged in a 30-pin TSSOP, the BQ29330DBT is suitable for applications requiring robust battery management and protection. Its typical operating current is low at 100 µA, making it efficient for battery-powered devices. The operating temperature range is from -40 °C to 110 °C.

BQ29330DBT Quick Information

Product Type: Battery Protection AFE

Series: BQ29330

Canonical Name: BQ29330DBT Lithium-Ion Battery Protection AFE

Subcategory: Battery Monitors & Balancers

BQ29330DBT Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BQ29330DBT Estimated Pricing

Qty	Low	High
1+	$2.77	$2.77

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

BQ29330DBT Features

Supports 2 to 4 series Li-ion cells.
I2C communication interface included.
Integrated 2.5V and 3.3V LDOs.
Provides cell balancing and FET drive.
Wide 4.5V to 28V supply voltage range.

BQ29330DBT Applications

Ideal for notebook and laptop battery packs.
Used in portable power tool battery management.
Suitable for medical device battery protection.
Works in UPS battery management systems.
Designed for consumer electronics Li-Ion packs.

BQ29330DBT FAQs

6 frequently asked questions generated from this part’s specifications.

What is the maximum number of series cells supported by the BQ29330DBT?

The BQ29330DBT supports a maximum of 4 series cells.

What is the operating voltage range for the BQ29330DBT?

The operating voltage range is from 4.5 V to 28 V.

What type of communication interface does the BQ29330DBT use?

The BQ29330DBT uses an I2C communication interface.

What are the integrated LDO output voltages?

The BQ29330DBT has integrated 2.5-V and 3.3-V LDO outputs.

What is the operating temperature range for this device?

The operating temperature range is -40 °C to 110 °C.

What package type is the BQ29330DBT supplied in?

The BQ29330DBT is supplied in a TSSOP package.