IC元器件

BQ24618RGER

参考价格：$3.575

Texas Instruments PMIC - 电池管理

BQ24618RGER 供应商

BQ24618RGER 属性参数

  • 标准包装：3,000
  • 类别：集成电路 (IC)
  • 家庭：PMIC - 电池管理
  • 系列：-
  • 功能：充电管理
  • 电池化学：锂离子（Li-Ion）、锂聚合物（Li-Pol）
  • 电源电压：4.7 V ~ 28 V
  • 工作温度：-40°C ~ 85°C
  • 安装类型：表面贴装
  • 封装/外壳：24-VFQFN 裸露焊盘
  • 供应商设备封装：24-VQFN 裸露焊盘（4x4）
  • 包装：带卷 (TR)

产品特性

  • USB-Friendly 4.7-V to 28-V Input Operating Range
  • Stand-Alone Charge Controller to Support 1 to 6 Li-Ion or Li-Polymer Battery Cells
  • Up to 10-A Charge Current and Adapter Current
  • 600-kHz NMOS-NMOS Synchronous Buck Converter
  • High-Accuracy Voltage and Current Regulation ±0.5% Charge Voltage Accuracy ±3% Charge Current Accuracy ±3% Adapter Current Accuracy
  • ±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
  • Automatic System Power Selection From Adapter or Battery
  • Internal Loop Compensation
  • Internal Soft Start
  • Dynamic Power Management
  • Safety Protection Input Overvoltage Protection Battery Thermistor Sense Hot/Cold Charge Suspend Battery Detection Reverse-Protection Input FET Programmable Safety Timer Charge Overcurrent Protection Battery Short Protection Battery Overvoltage Protection Thermal Shutdown
  • Input Overvoltage Protection
  • Battery Thermistor Sense Hot/Cold Charge Suspend
  • 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
  • Adapter Present
  • Charger Operation Status
  • Charge Enable Pin
  • 6-V Gate Drive for Synchronous Buck Converter
  • 30-ns Driver Dead-Time and 99.5% Maximum Effective Duty Cycle
  • Energy Star Low Quiescent Current Iq < 15-µA Off-State Battery Discharge Current < 1.5-mA Off-State Input Quiescent Current
  • < 15-µA Off-State Battery Discharge Current
  • < 1.5-mA Off-State Input Quiescent Current
  • APPLICATIONS Tablet PCs Smart Phones Portable Media Players, Navigation Devices, Notebooks and Ultra-Mobile PCs Personal Digital Assistants Handheld Terminals Industrial and Medical Equipment
  • Tablet PCs
  • Smart Phones
  • Portable Media Players, Navigation Devices, Notebooks and Ultra-Mobile PCs
  • Personal Digital Assistants
  • Handheld Terminals
  • Industrial and Medical Equipment

产品概述

The bq24618 device is highly integrated Li-ion or Li-polymer switched-mode battery-charge controller. The bq24618 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 bq24618 operates from either a USB port or AC adapter and supports charge currents up to 10 A. The device 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 for charge termination. The bq24618 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.
查看全部

BQ24618RGER 电路图

BQ24618RGER 相关产品