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BQ24155

AKTIV

I2C-Einzel-Zellen-Abwärts-Batterielader, 1,25 A

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Datenblatt

BQ24155

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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 Control interface I2C Features BAT temp thermistor monitoring (hot/cold profile), Input OVP 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 Control interface I2C Features BAT temp thermistor monitoring (hot/cold profile), Input OVP Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGY) 14 12.25 mm² 3.5 x 3.5
  • 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-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 Compatible 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
  • Automatic High Impedance Mode for Low Power Consumption
  • Robust Protection
    • Reverse Leakage Protection Prevents Battery Drainage
    • Thermal Regulation and Protection
    • Input/Output Overvoltage Protection
  • Status Output for Charging and Faults
  • USB Friendly Boot-Up Sequence
  • Automatic Charging
  • Power Up System without Battery
  • 3.5 mm x 3.5 mm 14-Pin QFN 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-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 Compatible 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
  • Automatic High Impedance Mode for Low Power Consumption
  • Robust Protection
    • Reverse Leakage Protection Prevents Battery Drainage
    • Thermal Regulation and Protection
    • Input/Output Overvoltage Protection
  • Status Output for Charging and Faults
  • USB Friendly Boot-Up Sequence
  • Automatic Charging
  • Power Up System without Battery
  • 3.5 mm x 3.5 mm 14-Pin QFN Package
  • APPLICATIONS
    • Mobile and Smart Phones
    • MP3 Players
    • Handheld Devices

The bq24155 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 bq24155 integrates a synchronous PWM controller, power FETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The bq24155 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, bq24155 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 compatible interface.

During the charging process, the bq24155 monitors its junction temperature (TJ) and reduces the charge current once TJ increases to approximately 125°C. The bq24155 is available in 14-pin QFN package.

The bq24155 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 bq24155 integrates a synchronous PWM controller, power FETs, input current sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP package.

The bq24155 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, bq24155 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 compatible interface.

During the charging process, the bq24155 monitors its junction temperature (TJ) and reduces the charge current once TJ increases to approximately 125°C. The bq24155 is available in 14-pin QFN package.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance*** datasheet 24 Feb 2010
Application note Building your own Battery Simulator 14 Okt 2013
EVM User's guide bq2415x RGY EVM User's Guide (Rev. A) 01 Apr 2010

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

BQ24155EVM — Evaluierungsmodul für BQ24155 vollständig integriertes Switch-Mode-Li-Ion-Ladegerät mit einer Zelle

The bq24155 evaluation module is a complete charger module for evaluating compact, flexible, high-efficiency, USB-friendly switch-mode charge management solution for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The bq2415x integrates a synchronous PWM (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Treiber oder Bibliothek

BQ2415XSW-LINUX — Linux-Treiber für BQ2415X

Der Linux-Treiber unterstützt die BQ2415x-Serie voll integrierter einzelliger Li-Ion-Schalt-Ladegeräte. Der Linux-Treiber unterstützt die Kommunikation über den I2C-Bus und ist mit dem Stromversorgungs-Subsystem verbunden.

Linux-Mainline-Status

Verfügbar in Linux Mainline: Ja
Verfügbar über (...)

Optionen anzeigen
Support-Software

BQ2415XEVM-SW — BQ2415x EVM Sowtware Setup

The BQ2415x EVM Software provides a software interface for the BQ24150/1 EVM boards. Use this software to change the BQ24150/1 IC registers via the USB Interface Adapter.

Unterstützte Produkte und Hardware

Unterstützte Produkte und Hardware

Produkte
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VQFN (RGY) 14 Optionen anzeigen
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Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

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