BQ20Z45DBTR The Texas Instruments BQ20Z45DBTR is an advanced gas gauge IC designed for Li-Ion and Li-Polymer batteries. It utilizes Impedance Track™ technology for accurate charge monitoring.
Mfr Part #:

BQ20Z45DBTR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ20Z45DBTR is an advanced gas gauge IC designed for Li-Ion and Li-Polymer batteries. It utilizes Impedance Track™ technology for accurate charge monitoring.
Total Stock: 3,928 pcs
$ Price Range: $0.75

BQ20Z45DBTR Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,764 pcs
2764 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request 21+ On Request On Request
Non-Authorised Inventory information
164 pcs
164 pcs On Request 1 On Request On Request 21+ On Request On Request

BQ20Z45DBTR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Authentication Support
Battery Chemistry
CPU
Failure Rate
Fault Protection
Function
Gas Gauging Technology
Mounting Type
Number of Cells
Operating Temperature
Package Description
SBS Compliant
Supplier Device Package
Supplier Package

BQ20Z45DBTR Description

Short technical summary and product information.

The Texas Instruments BQ20Z45DBTR is a single-chip solution for battery pack or in-system installation, providing gas gauging and protection for Li-Ion and Li-Polymer batteries. It supports the Smart Battery Specification (SBS) V1.1 and features patented Impedance Track™ technology for accurate available charge measurement over the battery's lifetime, with less than 1% error.

 

This IC is flexible, supporting configurations for 2 to 4 series Li-Ion or Li-Polymer cells. It includes a powerful 8-bit RISC CPU and an integrated analog front-end (AFE). The device offers a full array of programmable protection features, including over-current, over-temperature, over/under-voltage, and short-circuit protection, maximizing functionality and safety while minimizing external component count.

 

Designed for surface mounting, the BQ20Z45DBTR comes in a 38-TSSOP package. It operates within a temperature range of -40°C to 85°C. The device also supports SHA-1 authentication and lifetime data logging, making it suitable for applications requiring robust battery management and safety.

 

Key specifications include its multi-function controller capability, support for Lithium Ion/Polymer chemistries, and fault protection against various electrical anomalies. The Impedance Track™ technology continuously analyzes battery impedance for superior gas-gauging accuracy, accounting for discharge rate, temperature, and cell aging.

BQ20Z45DBTR Quick Information

Product Type: Gas Gauge IC
Series: Impedance Track™
Canonical Name: BQ20Z45DBTR Gas Gauge and Protection IC
Subcategory: Battery Management

BQ20Z45DBTR Compliance

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

BQ20Z45DBTR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

BQ20Z45DBTR Features

  • Accurate gas gauging with Impedance Track™.
  • Supports 2 to 4 series Li-Ion/Polymer cells.
  • Comprehensive programmable protection features.
  • 8-Bit RISC CPU with ultralow power modes.
  • Surface mount 38-TSSOP package.

BQ20Z45DBTR Applications

  • Accurate battery state-of-charge monitoring.
  • Smart battery pack integration.
  • Portable medical equipment.
  • Test and measurement devices.
  • Notebook PC battery management.

BQ20Z45DBTR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the BQ20Z45DBTR?

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

What type of batteries does the BQ20Z45DBTR support?

It supports Lithium Ion and Lithium Polymer batteries.

How many series cells can the BQ20Z45DBTR configure?

It can be configured for 2 to 4 series cells.

What is the package type for the BQ20Z45DBTR?

The package type is 38-TSSOP.

What fault protection is included in the BQ20Z45DBTR?

It includes protection against over current, over temperature, over/under voltage, and short circuit.

What is the primary function of the BQ20Z45DBTR?

Its primary function is as a multi-function controller for battery gas gauging and protection.

Does the BQ20Z45DBTR support specific gas gauging technology?

Yes, it supports Impedance Track™ technology for gas gauging.

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