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Circuitos integrados de gestión de baterías
Circuitos integrados para cargadores de baterías

BQ24151A

NO RECOMENDADO PARA NUEVOS DISEÑOS

Cargador de batería reductor de I2C de 1 celda y 1,25 A con OTG y 2KV HBM y modo automático de alta

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BQ24157 ACTIVO Cargador de batería reductor I2C de 1 celda y 1,55 A con OTG This product is 1.55A, 1S switching charger with OTG support

BQ24151A

NO RECOMENDADO PARA NUEVOS DISEÑOS
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Detalles del producto

Number of series cells 1 Charge current (max) (A) 1.25 Vin (max) (V) 6 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 Features USB OTG integrated Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1.25 Vin (max) (V) 6 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 Features USB OTG integrated Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) -40 to 85
  • Charge Faster than Linear Chargers
  • High-Accuracy Voltage and Current Regulation
    • Input Current Regulation Accuracy: ±5% (100 mA and 500 mA)
    • Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C)
    • Charge Current Regulation Accuracy: ±5%
  • High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
  • 20-V Absolute Maximum Input Voltage Rating
  • 6-V Maximum Operating Input Voltage
  • Built-In Input Current Sensing and Limiting
  • Integrated Power FETs for Up To 1.25-A Charge Rate
  • Programmable Charge Parameters through I2C Interface (up to 3.4 Mbps):
    • Input Current
    • Fast-Charge/Termination Current
    • Charge Voltage (3.5 V to 4.44 V)
    • Safety Timer with Reset Control
    • Termination Enable
  • Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
  • Robust Protection
    • Reverse Leakage Protection Prevents Battery Drainage
    • Thermal Regulation and Protection
    • Input/Output Overvoltage Protection
  • Status Output for Charging and Faults
  • Automatic High Impedance Mode for Low Power Consumption
  • USB Friendly Boot-Up Sequence
  • Automatic Charging – bq24150A
  • Automatic High Impedance Mode – bq24151A
  • Boost Mode Operation for USB OTG:
    • Input Voltage Range (from Battery): 2.5 V to 4.5 V
    • Output for VBUS: 5.05 V/ 200 mA
  • 2 x 2 mm 20-Pin WCSP Package
  • APPLICATIONS
    • Mobile and Smart Phones
    • MP3 Players
    • Handheld Devices
  • Charge Faster than Linear Chargers
  • High-Accuracy Voltage and Current Regulation
    • Input Current Regulation Accuracy: ±5% (100 mA and 500 mA)
    • Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C)
    • Charge Current Regulation Accuracy: ±5%
  • High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
  • 20-V Absolute Maximum Input Voltage Rating
  • 6-V Maximum Operating Input Voltage
  • Built-In Input Current Sensing and Limiting
  • Integrated Power FETs for Up To 1.25-A Charge Rate
  • Programmable Charge Parameters through I2C Interface (up to 3.4 Mbps):
    • Input Current
    • Fast-Charge/Termination Current
    • Charge Voltage (3.5 V to 4.44 V)
    • Safety Timer with Reset Control
    • Termination Enable
  • Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
  • Robust Protection
    • Reverse Leakage Protection Prevents Battery Drainage
    • Thermal Regulation and Protection
    • Input/Output Overvoltage Protection
  • Status Output for Charging and Faults
  • Automatic High Impedance Mode for Low Power Consumption
  • USB Friendly Boot-Up Sequence
  • Automatic Charging – bq24150A
  • Automatic High Impedance Mode – bq24151A
  • Boost Mode Operation for USB OTG:
    • Input Voltage Range (from Battery): 2.5 V to 4.5 V
    • Output for VBUS: 5.05 V/ 200 mA
  • 2 x 2 mm 20-Pin WCSP Package
  • APPLICATIONS
    • Mobile and Smart Phones
    • MP3 Players
    • Handheld Devices

The bq24150A/1A is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The bq24150A/1A integrates a synchronous PWM controller, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The bq24150A/1A charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface. During normal operation, bq24150A/1A automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status is reported to the host using the I2C interface.

During the charging process, the bq24150A/1A monitors its junction temperature (TJ) and reduces the charge current once TJ increases to approximately 125°C. To support USB OTG device, bq24150A/1A provides VBUS (approximately 5.05 V) by boosting the battery voltage. The bq24150A/1A is available in 20-pin WCSP package.

The bq24150A/1A is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The bq24150A/1A integrates a synchronous PWM controller, power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The bq24150A/1A charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on user-selectable minimum current level. A safety timer with reset control provides a safety backup for I2C interface. During normal operation, bq24150A/1A automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status is reported to the host using the I2C interface.

During the charging process, the bq24150A/1A monitors its junction temperature (TJ) and reduces the charge current once TJ increases to approximately 125°C. To support USB OTG device, bq24150A/1A provides VBUS (approximately 5.05 V) by boosting the battery voltage. The bq24150A/1A is available in 20-pin WCSP package.
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* Data sheet Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance an datasheet (Rev. A) 19 ene 2010

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