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BQ27541DRZR The Texas Instruments BQ27541DRZR is a single-cell Li-Ion battery fuel gauge designed for battery pack integration. It offers accurate fuel gauging using Impedance Track technology.
Mfr Part #:

BQ27541DRZR

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ27541DRZR is a single-cell Li-Ion battery fuel gauge designed for battery pack integration. It offers accurate fuel gauging using Impedance Track technology.
✓ Total Stock: 3,288 pcs
$ Price Range: $0.75

BQ27541DRZR Available from 4 distributors

✓ Authorised
✓ Non-Authorised
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.

BQ27541DRZR 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
Package Quantity
Supplier Device Package
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BQ27541DRZR Description

Short technical summary and product information.

The BQ27541DRZR from Texas Instruments is a single-cell Li-Ion battery fuel gauge designed for integration into battery packs. It provides accurate battery fuel gauging based on patented Impedance Track technology, which models the battery discharge curve for precise time-to-empty predictions. This fuel gauge automatically adjusts for battery aging, self-discharge, and temperature/rate inefficiencies.

 

Key features include an internal temperature sensor for system temperature reporting, SHA-1/HMAC authentication, and lifetime data logging. It communicates with the host system via HDQ and I2C interface formats. The device supports a low-value sense resistor (5mΩ to 20mΩ) and includes 96 bytes of non-volatile scratch pad FLASH memory.

 

Packaged in a compact 12-pin SON (2.5mm x 4mm) with an exposed pad, the BQ27541DRZR is suitable for space-constrained applications. It operates within a temperature range of -40°C to 85°C. The device is marked with 'BQ 7541'.

 

This part is noted as 'Not Recommended for New Designs' (NRND) in some documentation, suggesting that newer alternatives may be available for new projects.

BQ27541DRZR Quick Information

Product Type: Battery Fuel Gauge
Series: BQ27541-V200
Canonical Name: BQ27541DRZR Single Cell Li-Ion Battery Fuel Gauge
Subcategory: Battery Management

BQ27541DRZR Compliance

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

BQ27541DRZR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

BQ27541DRZR Features

  • Accurate battery fuel gauging via Impedance Track.
  • Internal temperature sensor for system reporting.
  • SHA-1/HMAC authentication supported.
  • I2C and HDQ interface formats.
  • Compact 12-pin SON package.

BQ27541DRZR Applications

  • Ideal for 1-series Li-Ion applications.
  • Suitable for battery pack integration.
  • Used in portable electronic devices.
  • Enables accurate battery monitoring.

BQ27541DRZR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the BQ27541DRZR?

-40°C to 85°C.

What package does the BQ27541DRZR come in?

12-SON (2.5x4) with exposed pad.

What interface does the BQ27541DRZR use?

I²C.

For how many cells is the BQ27541DRZR designed?

1 cell.

What battery chemistry does the BQ27541DRZR support?

Lithium Ion.

What is the sense resistor range for the BQ27541DRZR?

5mΩ to 20mΩ.

Does the BQ27541DRZR include non-volatile memory?

Yes, 96 bytes of non-volatile scratch pad FLASH.

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