Description

The IRS2505L is a control IC for PFC boost converters operating in critical-conduction mode. The IC incorporates a voltage feedback loop for output voltage regulation combined with smart zero crossing detection to control the gate drive output without the need for a secondary inductor winding. DC output over-voltage protection and cycle-by-cycle over-current protection are also included. Multi-functional inputs enable the IRS2505L to perform all functions with only 5 pins.

Features

● Critical-conduction mode PFC control (CrCM)

● High PF and ultra-low THD

● Wide line and load range

● Regulated DC output voltage

● No secondary winding required

● Cycle-by-cycle over-current protection

● Output over-voltage protection

● Ultra-low start-up current

● 20.8V internal zener clamp on VCC

● Excellent ESD and latch immunity

● RoHS compliant

● 5-pin SOT-23 package

Applications

● Off-line power supply

● Electronic ballast

● LED power supply

IRS2505LTRPBF屬于集成電路（IC） > PFC（功率因數(shù)校正）。英飛凌科技股份公司制造生產的IRS2505LTRPBFPFC（功率因數(shù)校正）功率因數(shù)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。