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BQ3055DBT The BQ3055DBT from Texas Instruments is a multi-function battery management IC designed for 2 to 4 series Li-Ion or Li-Polymer cells. It features an SMBus interface and operates over a wide temperature range.
Mfr Part #:

BQ3055DBT

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The BQ3055DBT from Texas Instruments is a multi-function battery management IC designed for 2 to 4 series Li-Ion or Li-Polymer cells. It features an SMBus interface and operates over a wide temperature range.
✓ Total Stock: 3,912 pcs
$ Price Range: $10.02

BQ3055DBT 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
3,710 pcs
On Request
3710 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
202 pcs
On Request
202 pcs On Request 1 On Request On Request 11+ 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.

BQ3055DBT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Fault Protection
Function
Interface
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
Supplier Package
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BQ3055DBT Description

Short technical summary and product information.

The Texas Instruments BQ3055DBT is a fully integrated, single-chip solution for managing 2-series, 3-series, and 4-series cell Li-Ion and Li-Polymer battery packs. It provides advanced gas gauging, protection, and authentication features.

 

This device measures and maintains accurate records of available capacity, voltage, current, and temperature, reporting critical parameters to the system host controller via an SMBus v1.1 interface. Key electrical specifications include support for 2-4 series cells and a battery chemistry compatibility with Lithium Ion/Polymer.

 

Designed for surface mount installation, the BQ3055DBT comes in a 30-TSSOP package. It operates within an environmental range of -40°C to 85°C. The IC offers integrated cell balancing and a range of programmable protection features, including over current, over temperature, and over/under voltage protection.

 

Additional features include SHA-1 authentication and sophisticated charge algorithms like JEITA Enhanced Charging and Adaptive Charging. Low-power modes are also supported, with sleep current consumption below 76 µA.

BQ3055DBT Quick Information

Product Type: Battery Management IC
Canonical Name: BQ3055DBT Battery Pack Manager
Subcategory: Battery Pack Managers

BQ3055DBT Compliance

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

BQ3055DBT Estimated Pricing

Qty Low High
1+ $10.02 $10.02

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

BQ3055DBT Features

  • Manages 2-4 series Li-Ion/Li-Polymer battery packs.
  • Provides advanced CEDV gas gauging.
  • Includes integrated cell balancing.
  • Offers SHA-1 authentication.
  • Operates from -40°C to 85°C.

BQ3055DBT Applications

  • Ideal for multi-cell battery pack monitoring.
  • Suitable for portable electronic devices.
  • Used in power tool battery management.
  • Applicable for electric vehicle battery systems.

BQ3055DBT FAQs

7 frequently asked questions generated from this part’s specifications.
What battery chemistries does the BQ3055DBT support?

The BQ3055DBT supports Lithium Ion and Li-Polymer battery chemistries.

How many series cells can the BQ3055DBT manage?

It can manage 2 to 4 series cells.

What is the communication interface for the BQ3055DBT?

The communication interface is SMBus.

What is the operating temperature range for the BQ3055DBT?

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

What type of package is the BQ3055DBT in?

The BQ3055DBT is available in a 30-TSSOP package.

Does the BQ3055DBT offer cell balancing?

Yes, it features internal cell balancing.

What fault protection features are included?

It includes protection against Over Current, Over Temperature, Over/Under Voltage, and Short Circuit.

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