Detalles del producto

Cell chemistry Li-Ion/Li-Polymer Number of series cells Single Cell Communication interface I2C Battery capacity (min) (mAh) 100 Battery capacity (max) (mAh) 32000 Implementation Pack, System External capacity indication None Features CEDV algorithm 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) 32000 Implementation Pack, System External capacity indication None Features CEDV algorithm 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 in Pack or on System Board
    • Supports Embedded or Removable Batteries
    • Powers Directly from Battery with Integrated
      LDO
    • Supports a Low-Value (10-mΩ) External Sense
      Resistor
  • Ultra-Low Power Consumption in NORMAL
    (50 µA) and SLEEP (9 µA) Modes
  • Battery Fuel Gauging Based on Compensated
    End-of-Discharge Voltage (CEDV) Technology
    • Reports Remaining Capacity and State-of-
      Charge (SOC) with Smoothing Filter
    • Adjusts Automatically for Battery Aging, Self-
      Discharge, Temperature, and Rate Changes
    • Provides 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 OR
      External Thermistor
  • Single-Cell Li-Ion Battery Fuel Gauge
    • Resides in Pack or on System Board
    • Supports Embedded or Removable Batteries
    • Powers Directly from Battery with Integrated
      LDO
    • Supports a Low-Value (10-mΩ) External Sense
      Resistor
  • Ultra-Low Power Consumption in NORMAL
    (50 µA) and SLEEP (9 µA) Modes
  • Battery Fuel Gauging Based on Compensated
    End-of-Discharge Voltage (CEDV) Technology
    • Reports Remaining Capacity and State-of-
      Charge (SOC) with Smoothing Filter
    • Adjusts Automatically for Battery Aging, Self-
      Discharge, Temperature, and Rate Changes
    • Provides 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 OR
      External Thermistor

The Texas Instruments bq27220 battery fuel gauge is a single-cell gauge that requires minimal user-configuration and system microcontroller firmware development, leading to quick system bring-up. The bq27220 device uses the Compensated End-of-Discharge Voltage (CEDV) algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), runtime-to-empty (min), battery voltage (mV), temperature (°C), and state-of-health (%).

The bq27220 battery fuel gauge has ultra-low power consumption in NORMAL (50 µA) and SLEEP (9 µA) modes, leading to longer battery runtime. Configurable interrupts help save system power and free up the host from continuous polling. Accurate temperature sensing is supported via an external thermistor.

Customers can use preloaded CEDV parameters in ROM or can generate custom chemistry parameters using TI’s web-based tool, GAUGEPARCAL. Custom-generated parameters can be either programmed in the device RAM by the host on power up of the system or customers can program the parameters to an onboard One-Time Programmable (OTP) memory.

Battery fuel gauging with the bq27220 device 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 bq27220 battery fuel gauge is a single-cell gauge that requires minimal user-configuration and system microcontroller firmware development, leading to quick system bring-up. The bq27220 device uses the Compensated End-of-Discharge Voltage (CEDV) algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), runtime-to-empty (min), battery voltage (mV), temperature (°C), and state-of-health (%).

The bq27220 battery fuel gauge has ultra-low power consumption in NORMAL (50 µA) and SLEEP (9 µA) modes, leading to longer battery runtime. Configurable interrupts help save system power and free up the host from continuous polling. Accurate temperature sensing is supported via an external thermistor.

Customers can use preloaded CEDV parameters in ROM or can generate custom chemistry parameters using TI’s web-based tool, GAUGEPARCAL. Custom-generated parameters can be either programmed in the device RAM by the host on power up of the system or customers can program the parameters to an onboard One-Time Programmable (OTP) memory.

Battery fuel gauging with the bq27220 device 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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Documentación técnica

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Tipo Título Fecha
* Data sheet bq27220 Single-Cell CEDV Fuel Gauge datasheet (Rev. A) PDF | HTML 11 abr 2016
User guide BQ27220 Technical Reference Manual (Rev. A) PDF | HTML 01 nov 2022
Technical article Battery-charging tips for video doorbell applications PDF | HTML 15 abr 2019
Technical article Achieving higher-accuracy battery fuel-gauge performance in ultra-low-power system PDF | HTML 09 may 2017
Application note Gauge Communication 12 ene 2017
Application note Enhanced Resolution Gauging for Low Current Applications Using Scaling 26 oct 2016
Application note bq27220 Calibration Guide 24 may 2016
EVM User's guide bq27220EVM-744 User's Guide 11 abr 2016

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

BQ27220EVM-744 — Módulo de evaluación de BQ27220 para el indicador de combustible CEDV del lado del sistema

The BQ27220EVM-744 evaluation module is a complete evaluation system for the bq27220. The EVM includes one bq27220 circuit module with an external sense resistor. A separated orderable EV2400 PC interface board for gas gauge interface along with a PC USB cable, and Windows™-based PC software (...)

Guía del usuario: PDF
Software de aplicación y estructura

BQSTUDIO-STABLE Battery Management Studio (bqStudio) Software – stable version downloads for bq series of TI battery fuel gauges

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

lock = Requiere aprobación de exportación (1 minuto)
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BQ24800 Controlador de carga de batería reductor SMBus de 1-4 celdas compatible con el modo de potencia híbr BQ25720 Controlador de carga de batería reductor-elevador NVDC SMBus de 1 a 4 celdas con ruta de alimentació BQ25723 Controlador de carga de batería reductor-elevador NVDC I²C de 1 a 4 celdas con ruta de alimentación BQ25731 Controlador de carga de batería reductor-elevador NVDC de I2C, 1-5 celdas con soporte USB tipo C PD BQ25790 Cargador de batería de impulso reductor de modo conmutado de 5 A integrado, NVDC, de 1 a 4 celdas BQ25792 Cargador reductor-elevador controlado por I2C, 5 A, 1 a 4 celdas con selector de entrada doble y sal
Medidores de carga de baterías
BQ27220 Medidor de combustible de batería (gas) CEDV de sistema con paquete de una sola celda con perfiles q BQ27320 Indicador de combustible (gas) de batería CEDV de un solo paquete de celdas del lado del sistema BQ27425-G1 Indicador de combustible del lado del sistema Impedance Track™ con conexión directa a la batería I b BQ27425-G2A Impedance Track™ del lado del sistema con indicador de combustible para batería LiCoO2 BQ27425-G2B Impedance Track™ del lado del sistema con indicador de combustible para batería LiMn2O4 BQ27520-G4 Indicador de combustible Impedance Track™ del lado del sistema con LDO integrado. BQ27530-G1 Indicador de combustible (gas) del lado del sistema Impedance-Track con conexión directa a la baterí BQ27531-G1 Indicador de combustible (gas) de la unidad de gestión de la batería Impedance Track™ para controlad BQ27532-G1 Indicador de combustible de la unidad de gestión de la batería Impedance Track™ para cargador bq2425 BQ27545-G1 Indicador de combustible, celda única, lado del paquete, Impedance Track™ BQ27546-G1 Indicador de combustible del lado del paquete de una celda Impedance Track™ con paquete DSBGA BQ27621-G1 Indicador de combustible del lado del sistema con correlación de tensión dinámica y indicador de gas BQ27741-G1 Indicador de combustible (gas) del lado del paquete Impedance Track™(tm) con protector integrado BQ27742-G1 Indicador de combustible de batería de iones de litio de una celda con protección integrada | indica BQ27Z561 Solución para el medidor de gas de circuito integrado Impedance Track™ para serie 1 BQ28Z610 Indicador de combustible de batería con protector integrado para paquetes de serie 1-2 BQ34110 Medidor de combustible de batería de recuento, celda alta para multiquímica con módulo integrado par BQ34210-Q1 Indicador de combustible CEDV del lado del sistema y una celda apto para automoción BQ34Z100-G1 Medidor de combustible independiente para multiquímica Impedance Track™ | indicador de gas de baterí BQ35100 Indicador de combustible de batería para baterías no recargables (litio primario) y monitor de fin d BQ4050 Medidor de combustible (gas) de batería CEDV serie 1-4 BQ40Z50 Administrador de baterías de iones de litio serie 1-4 | indicador de combustible de la batería (gas) BQ40Z50-R1 Administrador de baterías de iones de litio serie 1-4 compatible con Turbo Mode 1.0 BQ40Z50-R2 Administrador de baterías de iones de litio serie 1-4 compatible con Turbo Mode 2.0 BQ40Z60 Gestor completo de baterías multi-celda | indicador de combustible de batería (gas) BQ40Z80 Gestor de baterías de 2-s a 6-s con medición de gas Impedance Track™ BQ78350 Controlador de gestión de batería de indicador de combustible CEDV complementario para la familia de BQ78350-R1 Medidor de gas de iones de litio CEDV y controlador de gestión de la batería BQ78Z100 Medidor de combustible de batería (gas) Impedance Track™ para serie 1 a 2
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lock = Requiere aprobación de exportación (1 minuto)
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Battery charger ICs
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Battery fuel gauges
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Desarrollo de hardware
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Gauging Parameter Calculator (GPC) is a math calculation and simulation tool that helps the battery designer to obtain matching Compensated End of Discharge Voltage (CEDV) coefficients for the specific battery profile. The tool allows the user to increase the accuracy of the fuel gauge IC over (...)
Guía del usuario: PDF
Soporte de software

SLUC608 Smartflash OTP Programmer v 0.9.3

lock = Requiere aprobación de exportación (1 minuto)
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Medidores de carga de baterías
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Herramienta de cálculo

GAUGEPARCAL — Calculadora de parámetros de medición

Gauging Parameter Calculator (GPC) is a math calculation and simulation tool that helps the battery designer to obtain matching Compensated End of Discharge Voltage (CEDV) coefficients for the specific battery profile. The tool allows the user to increase the accuracy of the fuel gauge IC over (...)
Guía del usuario: PDF
Paquete Pasadores Descargar
DSBGA (YZF) 9 Ver opciones

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

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