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Hot sale original electronics STMicroelectronics L4981B IC PFC CTR AV CURR 100KHZ 20DIP PFC IC Average Current 100kHz 20-DIP

Manufacturer
STM
Manufacturer Product Number
L4981B
Description

STMicroelectronics L4981B IC PFC CTR AV CURR 100KHZ 20DIP PFC IC Average Current 100kHz 20-DIP

Package Condition
Tube

Product Details

DESCRIPTION

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 control functions for

designing a high efficiency-mode power supply with sinusoidal line current con

sumption.

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 put filter; both the operating frequency modes

working with an average current mode PWM controller, maintaining sinusoidal line current without

slope compensation.

■ 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 AVAILABLE

■ SOFT START

Product Description

ANSC PART#

 ANSC- L4981B

Part#

L4981B

Type:

Integrated Circuits

Manufactor

STMicroelectronics

DC

new

Actual image of the product                

27866.jpg

TYPE

DESCRIPTION

Category

Integrated Circuits (ICs)

Power Management (PMIC)

PFC (Power Factor Correction)

Manufacturer

STMicroelectronics

Series

-

Packaging

Tube

Part Status

Obsolete

Mode

Average Current

Frequency - Switching

100kHz

Current - Startup

100 µA

Voltage - Supply

14.5V ~ 19.5V

Operating Temperature

-40°C ~ 125°C

Mounting Type

Through Hole

Package / Case

20-DIP (0.300", 7.62mm)

Supplier Device Package

20-DIP

Base Product Number

L4981

Product datasheet

For more information, please download

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Payment&Transportation

Official Certificate&Certificate

Standard packaging

Multiple product supply

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Hot sale original electronics STMicroelectronics L4981B IC PFC CTR AV CURR 100KHZ 20DIP PFC IC Average Current 100kHz 20-DIP

STMicroelectronics L4981B IC PFC CTR AV CURR 100KHZ 20DIP PFC IC Average Current 100kHz 20-DIP

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