BQ24618RGET 供应商
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BQ24618RGET
品牌：TI 封装/批号：原厂原装/22+ -
BQ24618RGET
品牌：TI(德州仪器) 封装/批号：VQFN-24/2022+ -
BQ24618RGET
品牌：TI 封装/批号：原厂原装/2318+
BQ24618RGET 属性参数
- 标准包装：1
- 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：®
- 其它名称：296-28018-6
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.
BQ24618RGET 电路图
