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FAN6747WLMY PDF预览

FAN6747WLMY

更新时间: 2024-02-02 00:25:57
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 信息通信管理开关光电二极管
页数 文件大小 规格书
15页 1022K
描述
Switching Controller, Current-mode, 69kHz Switching Freq-Max, BICMOS, PDSO8

FAN6747WLMY 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete包装说明:SOP, SOP8,.25
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.31.00.01风险等级:5.75
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:CURRENT-MODE
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
湿度敏感等级:1端子数量:8
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:SOP8,.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子类别:Switching Regulator or Controllers
表面贴装:YES最大切换频率:69 kHz
技术:BICMOS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:30Base Number Matches:1

FAN6747WLMY 数据手册

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September 2010  
FAN6747  
Highly Integrated Green-Mode PWM Controller  
Features  
Description  
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High-Voltage Startup  
The highly integrated FAN6747 PWM controller  
provides several features to enhance the performance  
of flyback converters. To minimize standby power  
AC-Line Brownout Protection by HV Pin  
Constant Output Power Limit by HV Pin  
(Full AC-Line Range)  
consumption,  
a
proprietary green-mode function  
provides off-time modulation to decrease the switching  
frequency with load condition.  
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Built-in 8ms Soft-Start Function  
Under zero-load condition, the power supply enters  
burst mode and burst frequency can be low to save  
more power. Green-mode function enables the power  
supply to meet international power conservation  
requirements.  
Two-Level Over-Current Protection (OCP) with  
220ms Debounce  
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Short-Circuit Protection (SCP) with 15ms Debounce  
as Output Short  
Peak-Current Mode Operation with Cycle-by-Cycle  
Current Limiting  
The FAN6747 is especially designed for SMPS with  
peak-current output. It incorporates a cycle-by-cycle  
current limiting and two-level Over-Current-Protection  
(OCP) that can handle peak load with a debounce time.  
Once the current is over the threshold level, it triggers  
the first counter 15ms and checks if VDD is below 10V; if  
it is, the PWM latches off for SCP. If VDD is higher than  
10V; it keeps counting to 220ms, then the PWM latches  
off for OCP.  
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Low Startup Current: 30µA  
Low Operating Current: 1.7mA  
Over-Temperature Protection (OTP) with an  
External Negative-Temperature-Coefficient (NTC)  
Thermistor  
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PWM Frequency Decreasing at Green-Mode  
VDD Over-Voltage Protection (OVP)  
FAN6747 also integrates a frequency-hopping function  
internally to help reduce EMI emission of a power  
supply with minimum line filters. Built-in proprietary  
internal synchronized slope compensation achieves  
constant output power limit over universal AC line  
range. The gate output is clamped at 14V to protect the  
external MOSFET from over-voltage damage.  
Internal Latch Circuit for OVP, OTP, SCP, and OCP  
Applications  
General-purpose switch-mode power supplies and  
flyback power converters, including:  
Other protection functions include AC-line brownout  
protection with hysteresis and VDD over-voltage  
protection. For over-temperature protection, an external  
NTC thermistor can be applied to sense the ambient  
temperature. When OCP, OVP, SCP, or OTP is  
activated, an internal latch circuit latches off the  
controller. The latch is reset when the VDD supply is  
removed.  
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Power Adapters  
SMPS with Peak-Current Output, such as for  
Printers, Scanners, Motor Drivers  
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AC/DC NB Adapters  
Open-Frame SMPS  
Ordering Information  
Operating  
Temperature Range  
Packing  
Part Number  
Package  
Method  
8-Lead, Small-Outline Integrated Circuit (SOIC),  
JEDEC MS-012, .15-Inch Narrow Body  
FAN6747LMY  
-40 to +105°C  
Tape & Reel  
© 2010 Fairchild Semiconductor Corporation  
FAN6747 • Rev. 1.0.3  
www.fairchildsemi.com  

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