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Circuitos integrados de gestión de baterías
CI para cargador de batería

BQ24105-Q1

ACTIVO

Cargador de batería reductor de 1-3 celdas y 2 A independiente para automoción

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BQ24105-Q1

ACTIVO
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Detalles del producto

Rating Automotive Number of series cells 1, 2, 3 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiCd, NiMH Charge current (max) (A) 2 Features AEC-Q100 Automotive Qual, BAT temp thermistor monitoring (hot/cold profile), Input OVP Vin (min) (V) 4.35 Vin (max) (V) 16 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 2.1 Battery charge voltage (max) (V) 15.5 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
Rating Automotive Number of series cells 1, 2, 3 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiCd, NiMH Charge current (max) (A) 2 Features AEC-Q100 Automotive Qual, BAT temp thermistor monitoring (hot/cold profile), Input OVP Vin (min) (V) 4.35 Vin (max) (V) 16 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 2.1 Battery charge voltage (max) (V) 15.5 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
VQFN (RHL) 20 15.75 mm² (4.5 mm × 3.5 mm)
  • Qualified for Automotive Applications
  • Ideal For Highly Efficient Charger Designs For
    Single-, Two-, or Three-Cell Li-Ion and Li-Polymer
    Battery Packs
  • Also for LiFePO4 Battery (see Using bq24105 to Charge LiFePO4 Battery)
  • Integrated Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz
    With 0% to 100% Duty Cycle
  • Integrated Power FETs For Up To 2-A Charge Rate
  • High-Accuracy Voltage and Current Regulation
  • Stand-Alone (Built-In Charge Management and Control) Version
  • Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress,
    Charge Completion, Fault, and AC-Adapter Present Conditions
  • 20-V Maximum Voltage Rating on IN and OUT Pins
  • High-Side Battery Current Sensing
  • Battery Temperature Monitoring
  • Automatic Sleep Mode for Low Power Consumption
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Shutdown and Protection
  • Built-In Battery Detection
  • Available in 20-Pin, 3.5 mm × 4.5 mm, QFN Package

All trademarks are the property of their respective owners.
  • Qualified for Automotive Applications
  • Ideal For Highly Efficient Charger Designs For
    Single-, Two-, or Three-Cell Li-Ion and Li-Polymer
    Battery Packs
  • Also for LiFePO4 Battery (see Using bq24105 to Charge LiFePO4 Battery)
  • Integrated Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz
    With 0% to 100% Duty Cycle
  • Integrated Power FETs For Up To 2-A Charge Rate
  • High-Accuracy Voltage and Current Regulation
  • Stand-Alone (Built-In Charge Management and Control) Version
  • Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress,
    Charge Completion, Fault, and AC-Adapter Present Conditions
  • 20-V Maximum Voltage Rating on IN and OUT Pins
  • High-Side Battery Current Sensing
  • Battery Temperature Monitoring
  • Automatic Sleep Mode for Low Power Consumption
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Shutdown and Protection
  • Built-In Battery Detection
  • Available in 20-Pin, 3.5 mm × 4.5 mm, QFN Package

All trademarks are the property of their respective owners.

The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.

The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user-selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.

The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package.

The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user-selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos Synchronous Switch-Mode, Li-Ion, and Li-Pol Charge Management IC (bqSwitcher) datasheet (Rev. A) 3/05/2012
Nota sobre la aplicación Charging NiMH Battery using bq24105-Q1 In Automotive Applications 12/11/2017
EVM User's guide Using the bq241xx bqSWITCHER(tm) (Rev. A) 29/11/2007

Diseño y desarrollo

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Placa de evaluación

BQ24105EVM — Módulo de evaluación de BQ24105

The Texas Instruments bq24105EVM is the evaluation module (EVM) for the bq24105 Li-Ion charge management IC. The bq24105 is a highly integrated battery charge IC utilizing synchronous switch mode power conversion for efficient and comprehensive charge control of a one, two, or three series cell (...)

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