描述 Description

The ICE1PCS01/G is a 8-pin wide input range controller IC for active power factor correction converters. It is designed for converters in boost topology, and requires few external components.
Its power supply is recommended to be provided by an external auxiliary supply which will switch on and off the IC. The IC operates in the CCM with average current control, and in DCM only under light load condition. The switching frequency is programmable by the resistor at pin 4. Both compensations for the current and voltage loop are external to allow full user control.
There are various protection features incorporated to ensure safe system operation conditions. Examples are peak current limitation, brown-out protection and output under voltage detection. The internal reference is trimmed (5V+/-2%) to ensure precise protection and control level.
The device has an unique soft-start function which limits the start up current thus reducing the stress on the boost diode.

特性 Features

? Ease of Use with Few External Components
? Supports Wide Range
? Average Current Control
? External Current and Voltage Loop Compensation for Greater User Flexibility
? Programmable Operating/Switching Frequency (50kHz - 250kHz)
? Max Duty Cycle of 95% (typ) at 125kHz
? Trimmed Internal Reference Voltage (5V+/-2%)
? VCC Under-Voltage Lockout
? Cycle by Cycle Peak Current Limiting
? Over-Voltage Protection
? Open Loop Detection
? Output Under-Voltage Detection
? Brown-Out Protection
? Enhanced Dynamic Response
? Unique Soft-Start to Limit Start Up Current
? Fulfills Class D Requirements of IEC 1000-3-2

優(yōu)勢(shì):
? Wide Input Range
? Output Power Controllable by External Sense Resistor
? Programmable Operating Frequency
? Output Under-Voltage Detection
? Fast Output Dynamic Response during LoadJumps
? Pb-free lead plating; RoHS compliant

簡(jiǎn)介

ICE3A2065ELJ屬于集成電路（IC）的ACDC轉(zhuǎn)換器離線開關(guān)。由制造生產(chǎn)的ICE3A2065ELJAC DC 轉(zhuǎn)換器，離線開關(guān)該系列是元器件級(jí)控制產(chǎn)品，用于構(gòu)建將交流市電轉(zhuǎn)換為直流電（通常電壓大幅降低）的設(shè)備。集成和未集成系統(tǒng)主要開關(guān)元件的器件均包括在內(nèi)。由于高輸入輸出電壓比，以及此類系統(tǒng)中通常需要隔離，這些器件通常與外部變壓器配合使用。盡管通常使用定制變壓器來實(shí)現(xiàn)此用途，但也有許多專門用于此用途的庫存產(chǎn)品，請(qǐng)參見“開關(guān)轉(zhuǎn)換器，SMPS 變壓器”標(biāo)題。