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FAN6753NY PDF预览

FAN6753NY

更新时间： 2024-01-13 21:33:51
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 控制器
页数 文件大小 规格书
11页 336K
描述
Switching Controller, Current-mode, 68kHz Switching Freq-Max, BICMOS, PDIP8, GREEN, MS-001BA, DIP-8

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FAN6753NY 技术参数

生命周期：Obsolete零件包装代码：DIP
包装说明：DIP,针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.69
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-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 V
JESD-30 代码：R-PDIP-T8长度：9.415 mm
功能数量：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：DIP
封装形状：RECTANGULAR封装形式：IN-LINE
认证状态：Not Qualified座面最大高度：5.08 mm
表面贴装：NO切换器配置：SINGLE
最大切换频率：68 kHz技术：BICMOS
温度等级：INDUSTRIAL端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
宽度：7.62 mmBase Number Matches：1

FAN6753NY 数据手册

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www.fairchildsemi.com  
AN-6753  
FAN6753 — Highly Integrated Green-Mode PWM Controller  
Abstract  
Introduction  
The highly integrated FAN6753 series of PWM controllers  
provides several features to enhance the performance of  
flyback converters.  
This application note describes a detailed design strategy for  
a
high-efficiency compact flyback converter. Design  
considerations, mathematical equations, and guidelines for a  
Printed-Circuit-Board (PCB) layout are presented.  
To minimize standby power consumption, a proprietary  
green-mode function provides off-time modulation to  
linearly decrease the switching frequency at light-load  
conditions. To avoid acoustic-noise problems, the minimum  
PWM frequency is set above 22KHz. This green-mode  
function enables the power supply to meet international  
power conservation requirements. With the internal high-  
voltage startup circuitry, the power loss due to bleeding  
resistors is also eliminated. To further reduce power  
consumption, FAN6753 is manufactured using the BiCMOS  
process, which allows an operating current of only 2.7mA.  
Features  
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High-Voltage Startup  
Low Operating Current: 2.7mA  
Linearly Decreasing PWM Frequency to 22KHz  
Frequency Hopping to Reduce EMI Emission  
Fixed PWM Frequency: 65KHz  
Peak-Current-Mode Control  
Cycle-by-Cycle Current Limiting  
Leading-Edge Blanking (LEB)  
Synchronized Slope Compensation  
Internal Open-Loop Protection  
Gate Output Maximum Voltage Clamp: 18V  
VDD Under-Voltage Lockout (UVLO)  
VDD Over-Voltage Protection (OVP)  
Programmable Over-Temperature Protection (OTP)  
Internal Latch Circuit (OTP)  
Built-In 5ms Soft-Start Function  
Constant Power Limit (Full AC Input Range)  
Internal OTP Sensor with Hysteresis  
Built-in synchronized slope compensation achieves stable  
peak-current-mode control. The proprietary external line  
compensation ensures a constant output-power limit over a  
wide AC input voltage range, from 90VAC to 264VAC  
.
FAN6753 provides many protection functions. In addition to  
cycle-by-cycle current limiting, the internal open-loop  
protection circuit ensures safety should an open-loop or  
output short-circuit failure occur.  
External Latch  
OVP (VDD  
)
OLP (FB)  
(LATCH)  
FAN6753 Auto Restart Auto Restart  
SOP-8  
Latch  
Applications  
General-purpose, switch-mode power supplies and flyback  
power converters, including:  
RT  
FB  
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HV  
NC  
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Power Adapters  
Open-Frame Switch-Mode Power Supply (SMPS)  
SENSE  
GND  
VDD  
GATE  
Figure 1. Pin Configuration (Top View)  
© 2009 Fairchild Semiconductor Corporation  
Rev. 1.0.0 • 5/13/09  
www.fairchildsemi.com  
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