Detalles del producto

Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 10 Features BAT temp thermistor monitoring (hot/cold profile), IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 5 Vin (max) (V) 28 Absolute max Vin (max) (V) 33 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 2.1 Battery charge voltage (max) (V) 26 Control interface Standalone (RC-Settable) TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 10 Features BAT temp thermistor monitoring (hot/cold profile), IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 5 Vin (max) (V) 28 Absolute max Vin (max) (V) 33 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 2.1 Battery charge voltage (max) (V) 26 Control interface Standalone (RC-Settable) TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • 600-kHz NMOS-NMOS Synchronous buck converter
  • Stand-alone charger support for li-ion or li-polymer
  • 5-V to 28-V VCC Input operating range and supports 1- to 6-battery cells (BQ24610)
  • 5-V to 24-V VCC Input operating range and supports 1- to 5-battery cells (BQ24617)
  • Up to 10-A charge current and adapter current
  • High-accuracy voltage and current regulation
    • ±0.5% Charge voltage accuracy
    • ±3% Charge current accuracy
    • ±3% Adapter current accuracy
  • Integration
    • Automatic system power selection from adapter or battery
    • Non Power Path option for low total BOM cost
    • Internal loop compensation and soft start
    • Dynamic power management
  • Safety protection
    • Input overvoltage protection
    • Battery thermistor sense hot and cold charge suspend
    • Battery detection
    • Reverse protection input FET
    • Programmable safety timer
    • Charge overcurrent protection
    • Battery short protection
    • Battery overvoltage protection
    • Thermal shutdown
  • Status Outputs
    • Adapter present
    • Charger operation status
  • Charge enable pin
  • 6-V Gate drive for synchronous buck converter
  • Energy star low quiescent current Iq
    • < 15-µA Off-state battery discharge current
    • < 1.5-mA Off-state input quiescent current
  • 600-kHz NMOS-NMOS Synchronous buck converter
  • Stand-alone charger support for li-ion or li-polymer
  • 5-V to 28-V VCC Input operating range and supports 1- to 6-battery cells (BQ24610)
  • 5-V to 24-V VCC Input operating range and supports 1- to 5-battery cells (BQ24617)
  • Up to 10-A charge current and adapter current
  • High-accuracy voltage and current regulation
    • ±0.5% Charge voltage accuracy
    • ±3% Charge current accuracy
    • ±3% Adapter current accuracy
  • Integration
    • Automatic system power selection from adapter or battery
    • Non Power Path option for low total BOM cost
    • Internal loop compensation and soft start
    • Dynamic power management
  • Safety protection
    • Input overvoltage protection
    • Battery thermistor sense hot and cold charge suspend
    • Battery detection
    • Reverse protection input FET
    • Programmable safety timer
    • Charge overcurrent protection
    • Battery short protection
    • Battery overvoltage protection
    • Thermal shutdown
  • Status Outputs
    • Adapter present
    • Charger operation status
  • Charge enable pin
  • 6-V Gate drive for synchronous buck converter
  • Energy star low quiescent current Iq
    • < 15-µA Off-state battery discharge current
    • < 1.5-mA Off-state input quiescent current

The BQ2461x is a highly integrated Li-ion, Li-polymer or Lead-acid switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring.

The BQ2461x charges the battery in three phases: preconditioning, constant current, and constant voltage.

Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The BQ2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.

The BQ2461x is a highly integrated Li-ion, Li-polymer or Lead-acid switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring.

The BQ2461x charges the battery in three phases: preconditioning, constant current, and constant voltage.

Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The BQ2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.

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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 BQ2461x Stand-Alone 1- to 6-Cell Synchronous Buck Battery Charger Controller datasheet (Rev. D) PDF | HTML 16/12/2019
Analog Design Journal Multibattery management in medical ultrasound systems (Rev. B) PDF | HTML 8/06/2023
Artículo técnico How to choose the right battery-charger IC for ultrasound point-of-care products PDF | HTML 24/03/2021
Información sobre seguridad funcional BQ24610 Functional Safety FIT Rate, and Pin FMA 6/10/2020
Nota sobre la aplicación How to Charge a Lead-Acid Battery With a Li-Ion Charger 29/04/2020
Nota sobre la aplicación Design Example Charge 3 Super Capacitors in Series with Health Monitoring PDF | HTML 8/04/2020
Nota sobre la aplicación BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 31/12/2019
Artículo técnico Using battery charger ICs to shrink your design for vacuum robots PDF | HTML 21/03/2018
Product overview Battery Management Solutions for Point of Sale Systems 18/08/2014
Nota sobre la aplicación How to Review a Multicell Switching Charger Schematic 21/09/2011

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

BQ24610EVM — Módulo de evaluación para cargador de batería síncrono de modo conmutado de celdas múltiples BQ24610

The bq2461x is highly integrated Li-ion or Li-polymer switch-mode battery charge controllers. The bq2463x is highly integrated switch-mode battery charge controllers designed specifically to charge Lithium Phosphate battery chemistries. They offer a constant-frequency synchronous PWM controller (...)

Guía del usuario: PDF
Productos y hardware compatibles
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Herramienta de cálculo

SLUC175 — bq246xx Calculation Tool V1.5

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Diseño de referencia

TIDA-00040 — Diseño de referencia de cargador síncrono de modo conmutado de varias celdas de alta tensión

El diseño de referencia ofrece una solución para cargar la batería de ion de litio de 7 celdas. Se trata de una solución integrada del controlador de carga de batería de modo conmutado de ion de litio o polímero de litio. Ofrece un controlador PWM de conmutación síncrona de frecuencia constante con (...)

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Pedidos y calidad

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