深圳市勤思达科技有限公司

型号：L4981AD013TR

系列： L4981

厂家：STMicroelectronics/意法半导体

产品描述：集成电路（IC）功率因数校正

PFC CTRLR AVERAGE CURR 20SOIC

产品种类： 功率因数校正 - PFC

开关频率： 115 kHz

工作温度： + 125 C

安装风格： SMD/SMT/贴片

产品模式：平均电流

开关频率： 100kHz

封装风格： SO-20

封装类型： Reel/卷盘

封装尺寸： 20-SOIC（0.295"，7.50mm 宽）

厂家： STMicroelectronics

工作温度： - 40 C

工厂包装数量： 1000

L4981AD013TR

CONTROL BOOST PWM UP TO 0.99P.F.

LIMIT LINE CURRENT DISTORTION TO < 5%

UNIVERSAL INPUT MAINS

FEED FORWARD LINE AND LOAD REGULATION

AVERAGE CURRENT MODE PWM FOR

MINIMUM NOISE SENSITIVITY

HIGH CURRENT BIPOLAR AND DMOS TOTEM

POLE OUTPUT

LOW START-UP CURRENT (0.3mA TYP.)

UNDER VOLTAGE LOCKOUT WITH HYSTERESIS

AND PROGRAMMABLE TURN ON

THRESHOLD

OVERVOLTAGE, OVERCURRENT PROTECTION

PRECISE 2% ON CHIP REFERENCE EXTERNALLY

The L4981 I.C. provides the necessary features

to achieve a very high power factor up to 0.99.

Realized in BCD 60II technology this power factor

corrector (PFC) pre-regulator contains all the con

trol functions for designing a high efficiency-mode

power supply with sinusoidal line current consumption.

The L4981 can be easily used in systems with

mains voltages between 85V to 265V without any

line switch. This new PFC offers the possibility to

work at fixed frequency (L4981A) or modulated

frequency (L4981B) optimizing the size of the in

备注：深圳市勤思达科技有限公司长期供应分立半导体产品 L4981AD013TR

功率因数修L4981AD013TR品质保证，欢迎广大客户朋友咨询洽谈。