Detalles del producto

Number of series cells 1 Charge current (max) (A) 2.5 Vin (max) (V) 10 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), Input OVP, Power Path Vin (min) (V) 4.2 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 2.5 Vin (max) (V) 10 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), Input OVP, Power Path Vin (min) (V) 4.2 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFF) 49 9 mm² 3 x 3 VQFN (RGE) 24 16 mm² 4 x 4
  • High-Efficiency Switch Mode Charger with Separate Power Path Control
    • Instantly Startup System from a Deeply Discharged Battery or No Battery
  • 20V input rating, with 10.5V Over-Voltage Protection (OVP)
  • Integrated FETs for Up to 2.5A Charge Rate
  • Highly Integrated Battery N-Channel MOSFET Controller for Power Path Management
  • Safe and Accurate Battery Management Functions
    • 0.5% Battery Regulation Accuracy
    • 10% Charge Current Accuracy
  • Voltage-based, NTC Monitoring Input (TS)
    • JEITA Compatible
  • Thermal Regulation Protection for Output Current Control
  • BAT Short-Circuit Protection
  • Soft-Start Feature to Reduce Inrush Current
  • Thermal Shutdown and Protection
  • Available in Small 49-ball WCSP or QFN-24 Packages
  • High-Efficiency Switch Mode Charger with Separate Power Path Control
    • Instantly Startup System from a Deeply Discharged Battery or No Battery
  • 20V input rating, with 10.5V Over-Voltage Protection (OVP)
  • Integrated FETs for Up to 2.5A Charge Rate
  • Highly Integrated Battery N-Channel MOSFET Controller for Power Path Management
  • Safe and Accurate Battery Management Functions
    • 0.5% Battery Regulation Accuracy
    • 10% Charge Current Accuracy
  • Voltage-based, NTC Monitoring Input (TS)
    • JEITA Compatible
  • Thermal Regulation Protection for Output Current Control
  • BAT Short-Circuit Protection
  • Soft-Start Feature to Reduce Inrush Current
  • Thermal Shutdown and Protection
  • Available in Small 49-ball WCSP or QFN-24 Packages

The bq24272 is a highly integrated single cell Li-Ion battery charger and system power path management device targeted for space-limited, portable applications with high capacity batteries. The single cell charger operates from a dedicated power source such as a wall adapter or wireless power supply for a versatile solution.

The power path management feature allows the bq24272 to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This allows for proper charge termination and timer operation. The system voltage is regulated to the battery voltage but will not drop below 3.5V. This minimum system voltage support enables the system to run with a defective or absent battery pack and enables instant system turn-on even with a totally discharged battery or no battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This enables the use of a smaller adapter.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, the bq24272 offers a voltage-based battery pack thermistor monitoring input (TS) that monitors battery temperature for safe charging.

The bq24272 is a highly integrated single cell Li-Ion battery charger and system power path management device targeted for space-limited, portable applications with high capacity batteries. The single cell charger operates from a dedicated power source such as a wall adapter or wireless power supply for a versatile solution.

The power path management feature allows the bq24272 to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This allows for proper charge termination and timer operation. The system voltage is regulated to the battery voltage but will not drop below 3.5V. This minimum system voltage support enables the system to run with a defective or absent battery pack and enables instant system turn-on even with a totally discharged battery or no battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This enables the use of a smaller adapter.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, the bq24272 offers a voltage-based battery pack thermistor monitoring input (TS) that monitors battery temperature for safe charging.

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Documentación técnica

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Tipo Título Fecha
* Data sheet 2.5A, Single Input, Single Cell Switchmode Li-Ion Battery Charger with PowerPath datasheet 29 mar 2012

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.

Soporte de software

SLUC345 bq2427xEVM_SW_V0001.zip

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Circuitos integrados para cargadores de baterías
BQ24270 Cargador de batería reductor de 1 celda de 1,5 A controlado por I2C con gestión de rutas de alimenta BQ24271 Cargador de batería reductor de 1 celda, 1,5 A y controlado por I2C con gestión de ruta de alimentac BQ24272 CARGADOR DE BATERÍA de iones de litio de modo conmutado de una celda y entrada única de 2,5 A con ge
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
DSBGA (YFF) 49 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian

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

Soporte y capacitación

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

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

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