NCP1611

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Power Factor Controller, Enhanced, High Efficiency

制造商：ON

中文数据手册

产品信息

The NCP1611 is active power factor corrected (PFC) controller specifically designed for use as a boost preconverter in ac-dc adapters, flat TVs, lighting ballasts and other medium powered offline applications.The controller is based on an innovative Current Controlled Frequency Foldback(CCFF) method. In this mode, the circuit classically operates in Critical conduction Mode (CrM) when the inductor current exceeds a programmable value. When the current is below this preset level, the NCP1611 linearly reduces the frequency down to about 20 kHz when the current is at a null. CCFF maximizes the efficiency at both nominal and light load. In particular, the standby losses are reduced to a minimum.The controller features a robust suite of protection features to properly handle an array of power supply operating and fault conditions.

Critical Conduction mode with current controlled frequency foldback
Dynamic Response Enhancer
Soft Overvoltage Protection (S-OVP)
-500 mA/+800 mA Drive Capability
Valley Turn On
Wide Vcc Range of 9.5-35V
Two Vcc Startup Versions: 10.5V (A) and 17V (B)
AC Line Brownout Detection
Saturated Inductor and shorted boost or bypass protection
Open Pin Protection including Ground
Undervoltage and Fast Over voltage protection
Near Unity Power Factor
Cycle-by-cycle current protection

电路图、引脚图和封装图

NCP1611电路图
NCP1611电路图

在线购买

型号	制造商	描述	购买
NCP1611ADR2G	ON	PFC IC Current Controlled Frequency Foldback (CCFF), Critical Conduction (CRM) 8-SOIC	立即购买
NCP1611BDR2G	ON	IC PFC CTLR HE ENHANCED 8-SOIC	立即购买

技术资料

标题	类型	大小（KB）	下载
Enhanced, High Efficiency Power Factor Controller	PDF	807	点击下载
5 Key Steps to Design a Compact, High-Efficiency PFC Stage using the NCP1611	PDF	263	点击下载
Safety Tests on a NCP1611-Based PFC Stage	PDF	1363	点击下载
NCP1611/NCP1612 Tips and Tricks	PDF	557	点击下载
SOIC-8 Narrow Body	PDF	61	点击下载
NCP1611_PO.PNG	UNKNOW	7	点击下载
NCP1611_MS.PNG	UNKNOW	5	点击下载
NCP1611_PD.PNG	UNKNOW	5	点击下载

应用案例更多案例

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2010-10-28
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本系统将采用集成有μC/OS-Ⅱ操作系统的单片机，利用快速傅里叶变换并加窗函数的方法来实现对音频信号各项参数的分析。
2010-10-28
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2010-10-28
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2010-10-28
基于NCP1607和NCP1397的街道照明高能效LED电源
　　近年来，业界对超高能效的LED照明拓扑结构兴趣日浓，期望在功率电平相对较低(<50 W)时提供高于90%的能效，这个能效目标甚至比“能源之星”2.0版外部电源能效要求(功率不
2010-10-28
基于NCP1075 / NCP4328A的高压LED驱动方案
如今，高压LED的应用越来越多，像是CREE及Philips-Lumileds等众多LED制造商都推出了高压LED。这些LED的典型正向电压（VF）范围在24 V至超过200V间。这高压LED升压驱动电路板的性能测试结果显示提供高能效。如在190至255 Vac输入电压范...
2010-10-28

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