描述 Description

ICE3PCS01G is the new 14-pin wide input range (85VAC to 265VAC ) controller IC for active CCM power factor correction converter. Compared to the 1st and 2nd generation of ICE1PCS0x and ICE2PCS0x, the 3rd generation PFC have the lowest internal reference trimmed at 2.5V and integrated digital control voltage loop.They also have other advantages such as low peak current limit at 0.2V, adjustable gate switching frequency range from 21kHz to 100kHz and able to synchronise with external frequency range from 50kHz to 100kHz. They are now able to achieve 95% efficiency at full load for all input voltage range.

特性 Features

? Ease of use with few external components

? Average current control

? Bulk voltage good signal for inrush relay control or PWM IC enabling

? Integrated digital voltage loop compensation

? External current compensation for greater user fexibility

? Programmable switching (20kHZ-100kHz)

? External synchronzation (50kHz~100kHz)

? Direct sensing, input brown-out detection with hysteresis

? Max. duty cycle of 95% (typ)

? Trimmed internal reference voltage (2.5V +/-1.2%)

? V cc under-voltage lock-out

? Low peak current limit threshold

? Second over-voltage protection

? Open loop detection

? Output under-voltage detection

? PFC enable function

? Enhanced dynamic response

? Fulfills class D spec. of IEC1000-3-2

優(yōu)勢:
? ?-0.2V peak current limitation threshold reduce the power loss on shunt resistor dedicate protection features for computing PSU application can reduce system BOM cost

? Trimmed internal parameters with tight tolerance make mass production reliable

應用 Application

? PC silverbox

? Server PSU

? Industrial SMPS

簡介

ICE3PCS01G屬于集成電路（IC）的PFC（功率因數校正）。由制造生產的ICE3PCS01GPFC（功率因數校正）功率因數校正 (PFC) 是用于調整交流電路中的電壓和電流之間的相位角，使之趨近于零的半導體器件。不同模式包括平均電流、邊界導通、連續(xù)導通、臨界導通、電流控制式頻率折返、不連續(xù)和不連續(xù)導通，開關頻率從 6 kHz 至 1.7 MHz 可調。