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FAN4800CMY PDF预览

FAN4800CMY

更新时间: 2024-09-18 06:58:43
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 功率因数校正光电二极管控制器
页数 文件大小 规格书
24页 641K
描述
PFC/PWM Controller Combination

FAN4800CMY 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Transferred零件包装代码:SOIC
包装说明:SOP, SOP16,.25针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:8.5
其他特性:ALSO OPERATES IN CURRENT MODE模拟集成电路 - 其他类型:POWER FACTOR CONTROLLER WITH POST REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:22 V最小输入电压:11 V
标称输入电压:15 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:9.9 mm
湿度敏感等级:3功能数量:1
端子数量:16最高工作温度:105 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:SINGLE
最大切换频率:268 kHz温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3.9 mm
Base Number Matches:1

FAN4800CMY 数据手册

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April 2009  
FAN4800A/C, FAN4801/1S/2/2L  
PFC/PWM Controller Combination  
Features  
Description  
The  
highly  
integrated  
FAN4800A/C  
and  
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Pin-to-Pin Compatible with ML4800 and FAN4800  
and CM6800 and CM6800A  
FAN4801/1S/2/2L are specially designed for power  
supplies that consist of boost PFC and PWM. They  
require very few external components to achieve  
versatile protections / compensation. They are available  
in 16-pin DIP and SOP packages.  
PWM Configurable for Current-Mode or  
Feed-Forward Voltage-Mode Operation  
Internally Synchronized Leading-Edge PFC and  
Trailing-Edge PWM in one IC  
The PWM can be used in either current or voltage  
mode. In voltage mode, feed-forward from the PFC  
output bus can reduce the secondary output ripple.  
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Low Operating Current  
Innovative Switching-Charge Multiplier Divider  
Average-Current-Mode for Input-Current Shaping  
PFC Over-Voltage and Under-Voltage Protections  
PFC Feedback Open-Loop Protection  
Peak Current Limiting for PFC  
Compared with older productions, ML4800 and  
FAN4800, FAN4800A/C and FAN4801/1S/2/2L have  
lower operation current that save power consumption in  
external devices. FAN4800A/C and FAN4801/1S/2/2L  
have accurate 49.9% maximum duty of PWM that  
makes the hold-up time longer. Specifically, the  
brownout protection and PFC soft-start functions are not  
in ML4800 and FAN4800.  
Cycle-by-Cycle Current Limiting for PWM  
Power-On Sequence Control and Soft-Start  
Brownout Protection  
To start evaluating FAN4800A/C, FAN4801/1S/2/2L for  
replacing existing FAN4800 and ML4800 boards, five  
things must be done before the fine-tuning procedure:  
Interleaved PFC/PWM Switching  
1. Change RAC resister from the old value to a higher  
FAN4801/1S/2/2L Improve Efficiency at Light Load  
resister: between 6MΩ to 8MΩ.  
fRTCT=4•fPFC=4•fPWM for FAN4800A and  
FAN4801/1S  
2. Change RT/CT pin from the existing values to  
RT=6.8KΩ and CT=1000pF to have fPFC=64KHz,  
PWM=64KHz.  
f
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fRTCT=4•fPFC=2•fPWM for FAN4800C and  
FAN4802/2L  
3. VRMS pin needs to be 1.224V at VIN=85 VAC for  
universal input application from line input from  
85VAC to 270 VAC. Both poles for the Vrms of  
FAN4801/1S/2/2L don’t need to substantially  
slower than FAN4800; about 5 to 10 times.  
Applications  
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Desktop PC Power Supply  
4. At full load, the average VEA needs to ~4.5V and  
the ripple on the VEA needs to be less than 400mV.  
Internet Server Power Supply  
LCD TV, Monitor Power Supply  
UPS  
5. Soft-Start pin, the soft-start current has been  
reduced to half from the FAN4800 capacitor.  
Battery Charger  
DC Motor Power Supply  
Monitor Power Supply  
Telecom System Power Supply  
Distributed Power  
Related Resources  
Complete design instructions are detailed in application  
note AN-6078SC (available in Chinese only).  
© 2008 Fairchild Semiconductor Corporation  
FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2  
www.fairchildsemi.com  
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