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BQ27Z561-R2 AKTIV Impedance Track™-Batteriegasfühlerlösung für 1-S-Li-Ion-Akkupacks SHA-256 authentication, low-voltage (2.0 V), black box recorder, enhanced charging algorithm

Produktdetails

Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface HDQ, I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack External capacity indication None Features Impedance Track™ algorithm, SHA-256 Authentication Operating temperature range (°C) -40 to 85 Rating Catalog
Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface HDQ, I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack External capacity indication None Features Impedance Track™ algorithm, SHA-256 Authentication Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YPH) 12 2.8896 mm² 2.064 x 1.4
  • Supports high-side and low-side current sense resistors: down to 1mΩ
  • SHA-256 authentication responder for increased battery pack security
  • Two independent ADCs
    • Support for simultaneous current and voltage sampling
    • High-accuracy coulomb counter with input offset error: < 1µV (typical)
  • Low-voltage operation: 2V
  • Supports pack-side gauging
  • Wide-range current applications: 1mA to > 5A
  • Active high or low interrupt pin
  • Reduced power modes (typical battery pack operating range conditions)
    • Typical SLEEP mode: < 11µA
    • Typical DEEP SLEEP mode: < 9µA
    • Typical OFF mode: < 1.9µA
  • Internal and external temperature sense functions
  • 400kHz I2C bus communications interface for high-speed programming and data access
  • HDQ one-wire for communication with host
  • Compact 12-pin DSBGA package (YPH)
  • Supports high-side and low-side current sense resistors: down to 1mΩ
  • SHA-256 authentication responder for increased battery pack security
  • Two independent ADCs
    • Support for simultaneous current and voltage sampling
    • High-accuracy coulomb counter with input offset error: < 1µV (typical)
  • Low-voltage operation: 2V
  • Supports pack-side gauging
  • Wide-range current applications: 1mA to > 5A
  • Active high or low interrupt pin
  • Reduced power modes (typical battery pack operating range conditions)
    • Typical SLEEP mode: < 11µA
    • Typical DEEP SLEEP mode: < 9µA
    • Typical OFF mode: < 1.9µA
  • Internal and external temperature sense functions
  • 400kHz I2C bus communications interface for high-speed programming and data access
  • HDQ one-wire for communication with host
  • Compact 12-pin DSBGA package (YPH)

The Texas Instruments BQ27Z561 Impedance Track™ gas gauge solution is a highly integrated, accurate, 1-series cell gas gauge with a flash programmable custom reduced instruction-set CPU (RISC) and SHA-256 authentication for Li-ion and Li-polymer battery packs. The 1-series cell capability includes parallel cells for increased capacity.

The BQ27Z561 gas gauge communicates using I2C-compatible and HDQ one-wire interfaces and includes several key features that help facilitate accurate gas gauging applications. Integrated temperature sense functions (internal and external options) enable system and battery temperature measurements. The integrated SHA-256 functionality helps enable secure identification between systems and packs. The interrupt function facilitates the BQ27Z561 device to inform the system when a state-of-charge (SOC), voltage, or temperature fault occurs. The low-voltage operation enables the system to continue monitoring the battery, even in deeply discharged conditions. During low-activity situations, the device can be set to the low power coulomb counting (CC) mode, which allows the device to continue coulomb counting while significantly reducing operating current.

The Texas Instruments BQ27Z561 Impedance Track™ gas gauge solution is a highly integrated, accurate, 1-series cell gas gauge with a flash programmable custom reduced instruction-set CPU (RISC) and SHA-256 authentication for Li-ion and Li-polymer battery packs. The 1-series cell capability includes parallel cells for increased capacity.

The BQ27Z561 gas gauge communicates using I2C-compatible and HDQ one-wire interfaces and includes several key features that help facilitate accurate gas gauging applications. Integrated temperature sense functions (internal and external options) enable system and battery temperature measurements. The integrated SHA-256 functionality helps enable secure identification between systems and packs. The interrupt function facilitates the BQ27Z561 device to inform the system when a state-of-charge (SOC), voltage, or temperature fault occurs. The low-voltage operation enables the system to continue monitoring the battery, even in deeply discharged conditions. During low-activity situations, the device can be set to the low power coulomb counting (CC) mode, which allows the device to continue coulomb counting while significantly reducing operating current.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet BQ27Z561 Impedance Track™ Battery Gas Gauge Solution for 1-Series Cell Li-Ion Battery Packs datasheet (Rev. C) PDF | HTML 30 Sep 2025
Application note A Method to Save Time from Chem ID Ready to Pack Sample Manufacturing PDF | HTML 23 Jul 2025
Application note How to Create and Program Authentication Keys into TI Battery Fuel Gauges PDF | HTML 05 Mär 2025
User guide BQ27Z561-R2 and BQ27Z558 Technical Reference Manual (Rev. C) PDF | HTML 03 Mär 2024
Application note Battery Gauging Algorithm Comparison PDF | HTML 04 Dez 2023
Certificate BQ27Z561EVM-011 EU RoHS Declaration of Conformity (DoC) (Rev. A) 12 Jul 2022
EVM User's guide BQ27Z561EVM-011 Single-Cell Impedance Track Technology (Rev. A) PDF | HTML 12 Jul 2022
Application note End of Discharge SOC Jump Elimination PDF | HTML 06 Apr 2020
Application note BQ27Z561-R1 to BQ27Z561-R2 Change List 26 Feb 2020
Application note Impedance Track Optimization for Applications Without Significant Rest Periods 15 Okt 2019
User guide bq27z561 Technical Reference Manual 26 Jun 2018
Application note Simple Guide to Chemical ID Selection Tool (GPC) (Rev. A) 05 Jun 2018
Application note Gauge Communication 12 Jan 2017

Design und Entwicklung

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Evaluierungsplatine

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Benutzerhandbuch: PDF | HTML
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Support-Software

BQ27Z561-R2-DEVICE-FW BQ27Z561 Firmware

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DSBGA (YPH) 12 Ultra Librarian

Bestellen & Qualität

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  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
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  • Montagestandort

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