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发布者:来自网络 发布时间:2019/1/7 阅读:2398次   
FP8207-3A,18V开关式降压型1-3节锂电充电IC


FP8207-3A,18V开关式降压型1-3节锂电充电IC DataSheet

FP8207应用说明  Application Note

    

Feeling Part

Vdd(V)

IBAT(A)

ISHD(μA)

OSC(Hz)

VFLAOT(V)

OCP

SCP

UVLO

TSD

Opereting Temperature ()

Package

FP8207

4.6~18

3.5

20

600K

4.2~12.6可调

-40+85

TSSOP-14L(EP)

一般描述:
    FP8207是一款开关模式的电池充电控制器,输入电压应用范围为4.9V~16V,可对单节或是多节锂离子电池(最多三节)进行定电流或是恒压充电,其最大充电电流为3A,可用外部电阻进行设定,在充电方面细分成3种模式,包含了涓流模式、定电流模式与定电压模式,另有第三个控制回路可对来自电源转接器的输入电流进行限制,这可保证让系统持续工作的同时还能让电池以最高速率进行充电,但却不会超出电源供应器的能力。FP8207集成了多项保护机制,包含了内置输入欠压保护、芯片过温保护、电池短路保护、电池温度监控。
 
特色说明:
➢宽输入工作电压范围4.9V~16V
➢可调式截止电压范围4.1V~12.6V
➢可调式充电电流最高可达3A
➢精准参考电压:±1%
➢精准充电电流:±5%
➢固定工作频率500kHz
➢充电指示灯显示
➢多种保护功能:输入欠压保护、芯片过温保护、电池短路保护、电池温度监控
➢封装TSSOP-14L带散热片
 
应用:
手持式装置、太阳能供电型应用、锂电池充电应用、远程监控站
 
General Description
    The FP8207 is a 4.6V~18V input voltage, 3A multi cell synchronous step-down switching charger with few external components, FP8207 is well suited for a wide range of portable applications. Charging current can be programmed by an external current sensing resistor. With 600KHz switching frequency. The FP8207 employs a 2.4V float voltage feedback reference, so any desired battery float voltage up to 12.6V can be programmed with a resistor divider.Other features include UVLO, automatic recharge, charge status indicators and battery temperature monitor.

Features
Wide Input Voltage Range: 4.6V to 18V
Up to 3A Programmable Charge Current
Resistor Programmable Battery Float Voltage Range: 4.2V to 12.6V
Preset Charge Voltage with ±1% Accuracy
Automatic Recharge
Fix 600KHz Switching Frequency
Thermal Regulation
Under/Over Voltage Protection
Charge Status Indicators for No Battery and Charge Failure Display
Available TSSOP-14L With Exposed PAD

Applications
Portable Information Appliances
Charging Docks & Cradles
Solar Powered Applications
Handheld Computers

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