BQ40Z50RSMR The Texas Instruments BQ40Z50RSMR is a multi-function battery management IC designed for 1-4 series Li-ion or Li-Polymer battery packs. It supports SMBus communication and offers advanced features for accurate battery monitoring.
Mfr Part #:

BQ40Z50RSMR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ40Z50RSMR is a multi-function battery management IC designed for 1-4 series Li-ion or Li-Polymer battery packs. It supports SMBus communication and offers advanced features for accurate battery monitoring.
Total Stock: 2,230 pcs
$ Price Range: $2.22

BQ40Z50RSMR Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,574 pcs
1574 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
656 pcs
656 pcs On Request 1 On Request On Request 16+ On Request On Request

BQ40Z50RSMR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Capacity (max)
Battery Capacity (min)
Battery Chemistry
Cell Balancing
Fault Protection
Features
Function
Interface
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
Supplier Package

BQ40Z50RSMR Description

Short technical summary and product information.

The BQ40Z50RSMR from Texas Instruments is an integrated circuit designed for advanced battery pack management. It is suitable for 1-series, 2-series, 3-series, and 4-series Li-ion or Li-Polymer battery configurations.

 

Key electrical specifications include support for a battery capacity range from 100 mAh to 65000 mAh and communication via the SMBus interface. The device incorporates features such as cell balancing (external and internal), the patented Impedance Track™ algorithm for accurate charge measurement, integrated protection features, SHA-1 authentication, and Turbo Mode support.

 

This IC operates within a temperature range of -40°C to 85°C. It provides comprehensive protection against over current, over temperature, over/under voltage, and short circuits. The BQ40Z50RSMR is housed in a 32-VQFN (4x4 mm) package with an exposed pad, requiring surface mounting.

 

Its functionality makes it ideal for applications requiring precise battery state-of-charge monitoring and robust protection, such as portable electronics, power tools, and electric vehicles.

BQ40Z50RSMR Quick Information

Product Type: Battery Management IC
Canonical Name: BQ40Z50RSMR 1-4 Series Li-Ion Battery Pack Manager
Subcategory: Battery Pack Manager

BQ40Z50RSMR Compliance

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

BQ40Z50RSMR Estimated Pricing

Qty Low High
1+ $2.22 $2.22

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

BQ40Z50RSMR Features

  • Manages 1-4 series Li-ion/Li-Polymer battery packs.
  • Accurate charge measurement with Impedance Track™.
  • Supports SMBus communication interface.
  • Integrated protection features for voltage and current.
  • Operates from -40°C to 85°C.

BQ40Z50RSMR Applications

  • Ideal for portable electronic devices.
  • Suitable for power tool battery packs.
  • Used in electric vehicle battery systems.
  • Enables precise battery monitoring.

BQ40Z50RSMR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the BQ40Z50RSMR?

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

What battery chemistries does the BQ40Z50RSMR support?

It supports Lithium Ion/Polymer battery chemistries.

How many series cells can the BQ40Z50RSMR manage?

It can manage 1 to 4 series cells.

What communication interface does the BQ40Z50RSMR use?

The communication interface is SMBus.

What types of fault protection are included?

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

What are the key features of the BQ40Z50RSMR?

Key features include cell balancing, Impedance Track™ algorithm, Integrated Protector, SHA-1 Authentication, and Turbo Mode.

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