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BQ27421-G1

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Systemseitige(tm) Kraftstoffanzeige mit integriertem Erfassungs-Widerstand | Batterie-Gasfühler

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BQ27427 AKTIV Einzelbatterie-Ladezustandsmesser mit vorprogrammierter Chemie und integriertem Messwiderstand Low power consumption, internal sense resistor and battery state-of-health (aging) estimates

BQ27421-G1

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Produktdetails

Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 8000 Implementation System External capacity indication None Features Impedance Track™ algorithm, Integrated Sense Resistor Operating temperature range (°C) -40 to 85 Rating Catalog
Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 8000 Implementation System External capacity indication None Features Impedance Track™ algorithm, Integrated Sense Resistor Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YZF) 9 3.0625 mm² 1.75 x 1.75
  • Single-Cell Li-Ion Battery Fuel Gauge
    • Resides on System Board
    • Supports Embedded or Removable Batteries
    • Powered Directly from Battery with Integrated
      LDO
    • Low-Value Integrated Sense Resistor
      (7 mΩ, Typical)
  • Easy-to-Configure Fuel Gauging Based on
    Patented Impedance Track™ Technology
    • Reports Remaining Capacity and State-of-
      Charge (SOC) with Smoothing Filter
    • Automatically Adjusts for Battery Aging, Self-
      Discharge, Temperature, and Rate Changes
    • Battery State-of-Health (Aging) Estimation
  • Microcontroller Peripheral Supports:
    • 400-kHz I2C Serial Interface
    • Configurable SOC Interrupt or
      Battery Low Digital Output Warning
    • Internal Temperature Sensor or
      Host-Reported Temperature
  • Single-Cell Li-Ion Battery Fuel Gauge
    • Resides on System Board
    • Supports Embedded or Removable Batteries
    • Powered Directly from Battery with Integrated
      LDO
    • Low-Value Integrated Sense Resistor
      (7 mΩ, Typical)
  • Easy-to-Configure Fuel Gauging Based on
    Patented Impedance Track™ Technology
    • Reports Remaining Capacity and State-of-
      Charge (SOC) with Smoothing Filter
    • Automatically Adjusts for Battery Aging, Self-
      Discharge, Temperature, and Rate Changes
    • Battery State-of-Health (Aging) Estimation
  • Microcontroller Peripheral Supports:
    • 400-kHz I2C Serial Interface
    • Configurable SOC Interrupt or
      Battery Low Digital Output Warning
    • Internal Temperature Sensor or
      Host-Reported Temperature

The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires very little user configuration and system microcontroller firmware development.

The bq27421-G1 fuel gauge uses the patented Impedance TrackTM algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).

Battery fuel gauging with the bq27421-G1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 9-ball, 1.62 mm × 1.58 mm, 0.5-mm pitch NanoFree™ chip scale package (DSBGA) is ideal for space-constrained applications.

The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell Li-Ion batteries. The device requires very little user configuration and system microcontroller firmware development.

The bq27421-G1 fuel gauge uses the patented Impedance TrackTM algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).

Battery fuel gauging with the bq27421-G1 fuel gauge requires connections only to PACK+ (P+) and PACK– (P–) for a removable battery pack or embedded battery circuit. The tiny 9-ball, 1.62 mm × 1.58 mm, 0.5-mm pitch NanoFree™ chip scale package (DSBGA) is ideal for space-constrained applications.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet bq27421-G1 System-Side Impedance Track Fuel Gauge With Integrated Sense Resistor datasheet (Rev. E) PDF | HTML 06 Jan 2016
* User guide bq27421-G1 Technical Reference Manual (Rev. C) 30 Aug 2016
Technical article Get smart: How intelligent battery gauges improve battery life in continuous gluco PDF | HTML 19 Apr 2019
Application note Achieving The Successful Learning Cycle 19 Jun 2018
Application note Simple Guide to Chemical ID Selection Tool (GPC) (Rev. A) 05 Jun 2018
Application note Gauge Communication 12 Jan 2017
Application note Theory and Implementation of Impedance Track Battery Fuel-Gauging Algorithm (Rev. A) PDF | HTML 16 Mai 2014
More literature Quickstart Guide for bq27421-G1 (Rev. B) 06 Mai 2014
Application note Verification and Accuracy Test Methods of Gas Gauges 05 Jun 2013
Application note Going to Production With the bq274xx Family of Gas Gauges 27 Jun 2011

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

BQ27421EVM-G1A — BQ27421EVM-G1A Evaluierungsmodul-Platine für systemseitige Batterie-Ladezustandsmesser (Gas)

System-Side Battery Fuel (Gas) Gauge Solution Evaluation Module

The BQ27421EVM-G1A evaluation module is a complete evaluation system for the bq27421. The EVM includes one bq27421 circuit module with an integrated current-sense resistor. A separated orderable EV2400 PC interface board for gas gauge (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

BQ27421EVM-G1B — BQ27421EVM-G1B Evaluierungsmodul für systemseitige Batterie-Ladezustandsmesser (Gas)

System-Side Battery Fuel (Gas) Gauge Solution Evaluation Module

The BQ27421EVM-G1B evaluation module is a complete evaluation system for the bq27421. The EVM includes one bq27421 circuit module with an integrated current-sense resistor. A separated orderable EV2300 or EV2400 PC interface board for (...)
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Schnittstellenadapter

EV2400 — USB-basierte PC-Schnittstellenplatine für Batterie-Kraftstoff-Gasfühler-Evaluierungsmodul

The EV2400 EVM interface board enables an IBM-compatible or other type PC (with the required driver for its particular platform) to communicate with the Texas Instruments SMBus or I2C interface gas gauges via a Universal Serial Bus (USB) port. In addition to this board, PC software is required to (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Anwendungssoftware und Frameworks

BQSTUDIO — Software „Battery Management Studio“ (bqStudio)

Battery Management Studio (bqStudio) bietet eine vollständige Suite robuster Tools, die Sie bei der Evaluierung, dem Design, der Konfiguration, dem Test oder der anderweitigen Nutzung von TI-Produkten für das Batteriemanagement unterstützen. Dazu gehören Funktionen, die den (...)
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Treiber oder Bibliothek

BQ27XXXSW-LINUX — Linux-Treiber für BQ27XXX

The Linux driver supports the BQ27x series of Battery Fuel Gauges. The Linux driver supports communication through the I2C/HDQ bus and interfaces with the power supply sub-system to monitor battery properties.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

(...)

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Support-Software

BQEVSW-MKST-UPDATE — Software Update to enable BQEVSW to use MKST-3P-ALT-EV2300

BQ-BATTERY-PROGRAMMER-SW software development kit (SDK) is a collection of robust software command line tools that assist with the process of programming, testing, or assembling packs that use TI Battery management products. The executables in this software work with the MKST-3P-ALT-EV2300 MKS (...)

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware
Download-Optionen
Referenzdesigns

TIDA-00669 — Referenzdesign für drahtloses Ladegerät/BoosterPack mit 500 mA und Ladestandsmessung

Das TIDA-00669 ist ein BoosterPack™-Referenzdesign, das ein drahtloses Ladegerät und ein Batteriemanagement zur Versorgung jedes TI LaunchPad™ bietet (www.ti.com/launchpad). Hierbei handelt es sich um ein hochintegriertes Power-Management-Referenzdesign, das sich gut für Anwendungen mit geringem (...)
Design guide: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00712 — Referenzdesign einer Batterie-Management-Lösung für Smartwatches

This reference design is for smartwatch battery management solution (BMS). It is suitable for low-power wearable devices like smartwatch applications. The design includes an ultra-low current 1 cell Li-ion linear charger; a highly integrated Qi-compliant wireless power receiver; a (...)
Design guide: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00586 — Referenzdesign für Anzeigen-BoosterPack

The TIDA-00586 reference design is a gauge that has been designed as a booster pack to fit on the TI Launchpad development boards. The use of this this board for development will reduce the time spent in design and test of the bq27421 gauge IC. You can select any appropriate charger to charge your (...)
Design guide: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00055 — Eingenständiges Li-Ion-Ladegerät mit Synchron-Schaltmodus und 2 A FET – Referenzdesign

This reference design is a solution for a Li-Ion charge management IC. It has a highly integrated battery charge IC utilizing synchronous switch mode power conversion for efficient and comprehensive charge control of a single cell Li-Ion battery. The solutionprovides a convenient method to evaluate (...)
Test report: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00053 — Linearladegerät mit 1 A Leistung für Einzelzellen für LiFePO4-Anwendungen – Referenzdesign

This reference design is designed to deliver up to 1 A of continuous current to the battery and/or system. It has a 4.9 VDC, 50 mA max internal LDO that can be used for USB applications or any other need. It uses the bq25070, a highly integrated LiFePO4 linear battery charger, in order to target (...)
Test report: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00045 — Referenzdesign mit Lade-IC und dynamischem Power-Path-Management-IC auf einem Chip

This reference design is a Single-Chip Charge and Dynamic Power-Path Management IC solution. It is a complete bq24030 based circuit design and provides a convenient method to evaluate the operation and performance of the IC. The development solution includes a tested evaluation board; a user guide (...)
Test report: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00044 — Referenzdesign für USB-Li-Ion-Akkulader und Power-Path Management

This reference design delivers up to 1000 mA of continuous current to the battery output when programmed with a resistor on the ISET pin and is programmed at the factory for ~540mA. The USB current limit modes are selected by the ISET2 pin and limits current to a maximum of 500 mA (logic high) or (...)
Test report: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00042 — Referenzdesign zum Laden von einzelnen Li-Ion-Akkuzellen mit 1 A

This reference design is targeted at space-limited portable applications. The devices in the design operate from either a USB port or AC adapter. The solution has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system (...)
Test report: PDF
Schaltplan: PDF
Referenzdesigns

TIDA-00031 — Referenzdesign für System-Side ImpedanceTrack Kraftstoffanzeige mit integriertem Widerstandssensor

This reference design is a complete evaluation system solution for the bq27421. The solution includes one bq27421 circuit module with an integrated current-sense resistor. A separated orderable EV2300 or EV2400 PC interface board for gas gauge interface along with a PC USB cable, and (...)
Test report: PDF
Schaltplan: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
DSBGA (YZF) 9 Ultra Librarian
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

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

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