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BQ24630

AKTIV

Eigenständiger 1–7-Zellen-Abwärts-Batterielader-Controller für LiFePO4-Batterien mit Systemstromvers

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Datenblatt

BQ24630

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Number of series cells 1, 2, 3, 4, 5, 6, 7 Charge current (max) (A) 10 Vin (max) (V) 28 Cell chemistry Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 1.8 Battery charge voltage (max) (V) 26 Absolute max Vin (max) (V) 33 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IINDPM (Input current limit) Vin (min) (V) 5 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1, 2, 3, 4, 5, 6, 7 Charge current (max) (A) 10 Vin (max) (V) 28 Cell chemistry Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 1.8 Battery charge voltage (max) (V) 26 Absolute max Vin (max) (V) 33 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IINDPM (Input current limit) Vin (min) (V) 5 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² 4 x 4
  • 300-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Specifically for Lithium
    Phosphate
  • 5-V–28-V VCC Input Operating Range,
    Supports 1–7 Battery Cells
  • 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
    • Internal Loop Compensation
    • Internal Soft Start
    • Dynamic Power Management (DPM)
  • Safety Protection
    • Input Overvoltage Protection
    • Battery Thermistor Sense Suspend Charge at
      Hot/Cold and Automatically ICHARGE/8 at
      Hot/Cold or Warm/Cool
    • 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
  • 30-ns Driver Dead Time and 99.95% Max.
    Effective Duty Cycle
  • 24-Pin 4-mm × 4-mm QFN Package
  • Energy Star Low Quiescent Current Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
  • APPLICATIONS
    • Power Tool and Portable Equipment
    • Personal Digital Assistants
    • Handheld Terminals
    • Industrial and Medical Equipment
    • Netbook, Mobile Internet Device, and Ultra-Mobile
      PC

All other trademarks are the property of their respective owners
  • 300-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Specifically for Lithium
    Phosphate
  • 5-V–28-V VCC Input Operating Range,
    Supports 1–7 Battery Cells
  • 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
    • Internal Loop Compensation
    • Internal Soft Start
    • Dynamic Power Management (DPM)
  • Safety Protection
    • Input Overvoltage Protection
    • Battery Thermistor Sense Suspend Charge at
      Hot/Cold and Automatically ICHARGE/8 at
      Hot/Cold or Warm/Cool
    • 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
  • 30-ns Driver Dead Time and 99.95% Max.
    Effective Duty Cycle
  • 24-Pin 4-mm × 4-mm QFN Package
  • Energy Star Low Quiescent Current Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
  • APPLICATIONS
    • Power Tool and Portable Equipment
    • Personal Digital Assistants
    • Handheld Terminals
    • Industrial and Medical Equipment
    • Netbook, Mobile Internet Device, and Ultra-Mobile
      PC

All other trademarks are the property of their respective owners

The bq24630 is a highly integrated lithium phosphate 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 bq24630 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 bq24630 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 bq24630 is a highly integrated lithium phosphate 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 bq24630 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 bq24630 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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Technische Dokumentation

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Typ Titel Datum
* Data sheet bq24630 Standalone Synchronous Switched-Mode Lithium Phosphate Battery Charger With System Power Selector and Low Iq datasheet (Rev. B) PDF | HTML 31 Jul 2015
Application note LiFePO4 Design Considerations PDF | HTML 26 Jul 2023
Application note BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 31 Dez 2019
User guide bq2461x/bq2463x (HPA422A) Multi-Cell Synchronous Switch-Mode Charger (Rev. A) 27 Jul 2010

Design und Entwicklung

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Evaluierungsplatine

BQ24630EVM — Evaluierungsmodul für BQ24630 Multizellen-Synchron-Schaltmodus-Ladegerät

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 (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Berechnungstool

SLUC175 — bq246xx Calculation Tool V1.5

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