品牌 | FEELING/遠翔科技 | 批号 | 2025 |
封装 | SOP-8-EP | 仓库 | 深圳 |
- 3.5A同步开关模式降压型锂电池充电管理芯片
FP8208A-3.5A同步开关模式降压型锂电池充电管理芯片
DataSheet
FP8208A应用说明
Application Note
描述:
FP8208A 是一款开关模式降压型锂电池充电管理芯片, 输入电压应用适合 5V 交流适配器, 可对单节锂离子电池进行定电流或是恒压充电, 其最大充电电流为 3.5A, 最大充电电流可由外部电阻进行设定, 在充电方面细分成 3 种式,包含了涓流模式、定电流模式与定电压模式。
FP8208A 集成了多项保护机制, 包含了内置输入欠压保护、 输入过压保护、 芯片过温保护、 电池短路保护、 电池温度监控。特色说明:
? 输入工作电压范围 4.8V~5.5V
? 高精准截止电压: 4.2V±1%
? 可调式充电电流最高可达 3.5A
? 精准充电电流: ±8%
? 固定工作频率 720kHz
? 充电指示灯显示
? 自动再充电功能
? 多种保护功能: 输入欠压保护、输入过压保护、 芯片过温保护、 电池短路保护、 电池温度监控
? 封装 SOP-8L 带散热片应用:
?手持式装置、锂电池充电应用、 播放器、平板计算机、数码相机FP8208A-3.5A Synchronous Switch-Mode Li-Ion Battery ChargerGeneral Description
The FP8208A is a highly integrated synchronous switch-mode Li-Ion Battery Charger. With few
external components, FP8208A is well suited for a wide range of portable applications. Charging
current can be programmed by an external current sensing resistor. With 720KHz switching frequency,
FP8208A can use of small external components. Other features include UVLO, automatic recharge,
charge status indicators and battery temperature monitor.Features
? Up to 3.5A Programmable Charge Current
? Up to 92% Efficiency
? Preset 4.2V Charge Voltage with ±1% Accuracy
? Fixed Frequency Operation at 720kHz
? Adjustable Charge Current using External Resistance Setting
? No external MOSFET and Blocking Diode Required
? Switch-model Charger for single cell Li-Ion Batteries
? Input Voltage Regulation
? Automatic Recharge
? 2.9V Trickle Charge Voltage
? C/10 Charge Termination
? Battery Over-Temperature Protection
? Over-Voltage、 Over-Charge Current、 Battery Short and Thermal Protection
? Charge Status Indicators for No Battery and Charge Failure DisplayApplications
? Portable Information Appliances
? Charging Docks & Cradles
? Cellular Phones & PDAs