產品詳情

Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6, 7 Cell chemistry Lithium Phosphate/LiFePO4 Charge current (max) (A) 10 Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 5 Vin (max) (V) 28 Absolute max Vin (max) (V) 33 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 1.8 Battery charge voltage (max) (V) 26 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6, 7 Cell chemistry Lithium Phosphate/LiFePO4 Charge current (max) (A) 10 Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 5 Vin (max) (V) 28 Absolute max Vin (max) (V) 33 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 1.8 Battery charge voltage (max) (V) 26 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
VQFN (RVA) 16 12.25 mm2 3.5 x 3.5
  • 300-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Designed Specifically for
    Lithium Phosphate
  • 5-V to 28-V VCC Operating Range, Supports 1 to
    7 Battery Cells
  • High-Accuracy Voltage and Current Regulation
    • ±0.5% Charge Voltage Accuracy
    • ±3% Charge Current Accuracy
  • Integration
    • Internal Loop Compensation
    • Internal Soft Start
  • Safety
    • Input Overvoltage Protection
    • Battery Thermistor Sense Suspend Charge at
      Hot/Cold Charge Suspend and Automatically
      ICHARGE/8 at WARM/COOL
    • Battery Detection
    • Built-In 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% Maximum
    Effective Duty Cycle
  • 16-Pin 3.5-mm × 3.5-mm QFN Package
  • Energy Star Low Iq
    • < 15-μA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
  • APPLICATIONS
    • Power Tools and Portable Equipment
    • Personal Digital Assistants
    • Handheld Terminals
    • Industrial and Medical Equipment
    • Netbooks, Mobile Internet Devices, and
      Ultramobile PCs

All other trademarks are the property of their respective owners
  • 300-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Designed Specifically for
    Lithium Phosphate
  • 5-V to 28-V VCC Operating Range, Supports 1 to
    7 Battery Cells
  • High-Accuracy Voltage and Current Regulation
    • ±0.5% Charge Voltage Accuracy
    • ±3% Charge Current Accuracy
  • Integration
    • Internal Loop Compensation
    • Internal Soft Start
  • Safety
    • Input Overvoltage Protection
    • Battery Thermistor Sense Suspend Charge at
      Hot/Cold Charge Suspend and Automatically
      ICHARGE/8 at WARM/COOL
    • Battery Detection
    • Built-In 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% Maximum
    Effective Duty Cycle
  • 16-Pin 3.5-mm × 3.5-mm QFN Package
  • Energy Star Low Iq
    • < 15-μA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
  • APPLICATIONS
    • Power Tools and Portable Equipment
    • Personal Digital Assistants
    • Handheld Terminals
    • Industrial and Medical Equipment
    • Netbooks, Mobile Internet Devices, and
      Ultramobile PCs

All other trademarks are the property of their respective owners

The bq24620 device 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, and charge status monitoring.

The bq24620 charges the battery in three phases: preconditioning, constant current, and constant voltage.

The bq24620 device 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, and charge status monitoring.

The bq24620 charges the battery in three phases: preconditioning, constant current, and constant voltage.
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類型 標題 下載最新的英語版本 日期
* 數據表 bq24620 Stand-Alone Synchronous Switched-Mode Lithium Phosphate Battery Charger With Low Iq 數據表 (Rev. B) PDF | HTML 2015年 6月 17日
應用手冊 BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 2019年 12月 31日
選擇指南 電源管理指南 2018 (Rev. K) 2018年 7月 31日
用戶指南 Multi Cell Synchronous Switch-Mode Charger, EVM (HPA421) 2010年 2月 18日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估板

BQ24620EVM — 用于 BQ24620 多節同步開關模式充電器的評估模塊

bq24600/bq24620/bq24640 評估模塊。bq2461x 是高度集成的鋰離子或鋰聚合物開關模式電池充電控制器。bq2463x 是高度集成的開關模式電池充電控制器，專為磷酸鋰電池化學物充電而設計。bq24640 是高度集成的超級電容器開關模式充電控制器。它們可以為恒頻同步 PWM 控制器提供高準確度充電電流和電壓調節、適配器電流調節、終止、充電預處理和充電狀態監控。bq24600/bq24620 (...)

用戶指南: PDF
TI.com 上無現貨
計算工具

SLUC175 — bq246xx Calculation Tool V1.5

支持的產品和硬件

支持的產品和硬件

產品
電池充電器 IC
BQ24600 — 獨立 1 至 6 節降壓電池充電控制器 BQ24610 — 具有 5V 至 28V 輸入的獨立 1 至 6 節降壓電池充電控制器 BQ24616 — 符合 JEITA 標準的獨立 1 至 6 節降壓電池充電控制器 BQ24617 — 具有 5V 至 24V 輸入的獨立 1 至 5 節降壓電池充電控制器 BQ24618 — 支持 USB 且具有 5V 至 28V 輸入的獨立 1 至 6 節降壓電池充電控制器 BQ24620 — 適用于磷酸鋰電池的獨立 1 至 7 節降壓電池充電控制器 BQ24630 — 適用于磷酸鐵鋰電池、具有系統功率的獨立 1 至 7 節降壓電池充電控制器 BQ24640 — 適用于超級電容器的獨立 1 至 8 節降壓電池充電控制器 BQ24650 — 具有太陽能輸入和集成式 MPPT 的獨立 1 至 6 節降壓電池充電控制器
封裝 引腳 CAD 符號、封裝和 3D 模型
VQFN (RVA) 16 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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