NCP1612

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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 NCP1612 is active power factor corrected (PFC) controller specifically designed for use as a boost pre-converter 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 NCP1612 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.This device is particularly suited a PFC stage for LLC controllers due to its dedicated PFC_Okay Output.

Critical conduction mode with current controlled frequency foldback
Dynamic Response Enhancer
Soft Overvoltage Protection
-500 mA/+800 mA Drive Capability
Valley turn on
Wide Vcc Range of 9.5-35 Vdc
Two Vcc startup versions: 10.5 V (A) and 17 V (B)
AC Line Brownout Detection
Cycle-by-cycle switch current monitoring
Saturated inductor and shorted boost or bypass diode detection
PFC Okay Output
Latch Off Input
Independent bulk overvoltage and undervoltage monitoring
Open Ground Pin Fault Monitoring
Near Unity Power Factor
Thermal Shutdown

电路图、引脚图和封装图

NCP1612电路图
NCP1612电路图

在线购买

型号	制造商	描述	购买
NCP1612A1DR2G	ON	IC PFC CTRL CRM 10SOIC	立即购买
NCP1612BDR2G	ON	PFC IC Current Controlled Frequency Foldback (CCFF) 10-SOIC	立即购买
NCP1612A2DR2G	ON	PFC IC Current Controlled Frequency Foldback (CCFF) 10-SOIC	立即购买
NCP1612ADR2G	ON	PFC IC Current Controlled Frequency Foldback (CCFF) 10-SOIC	立即购买
NCP1612A3DR2G	ON	ICPFCCTRLCRM10SOIC	立即购买

技术资料

标题	类型	大小（KB）	下载
SOIC-10 NB	PDF	55	点击下载
Enhanced, High-Efficiency Power Factor Controller	PDF	651	点击下载
NCP1612 Design Worksheet	XLS	2048	点击下载
5 Key Steps to Design a Compact, High-Efficiency PFC State Using the NCP1612	PDF	250	点击下载
NCP1611/NCP1612 Tips and Tricks	PDF	557	点击下载
Safety Tests on a NCP1612-Based PFC Stage	PDF	709	点击下载
NCP1612_PD.GIF	UNKNOW	20	点击下载
NCP1612_AD.GIF	UNKNOW	25	点击下载

应用案例更多案例

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