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L4981BD +BOM

The Power Factor Correction PWM Controller L4981BD features a 20-pin SO tube package

Manufacturer:

Stmicroelectronics
Mfr.Part #:

L4981BD
Datasheet:

L4981BD Datasheet (PDF)
ECCN US:

EAR99
ECCN EU:

NEC
Packing Type:

Tube
Grade:

Industrial

L4981BD General Description

The L4981BD is a powerful and efficient power factor corrector that delivers exceptional performance with a power factor of up to 0.99. Utilizing state-of-the-art BCD 60II technology, this IC offers a wide range of control functions for developing high-efficiency power supplies with sinusoidal line current consumption. Operating flawlessly within mains voltages from 85V to 265V, the L4981BD eliminates the need for a line switch, providing greater design flexibility. Whether selecting fixed frequency mode (L4981A) or modulated frequency mode (L4981B), this PFC regulator optimizes input filter size and ensures precise control with an average current mode PWM controller. Featuring essential components such as a power MOSFET gate driver, voltage reference, error amplifier, and comprehensive protections including overvoltage and overcurrent protection, the L4981BD simplifies design complexity and enhances system efficiency

Key Features

PROGRAMMABLE TURN-OFF DELAY
MAXIMUM CURRENT LIMITATION
SELF-RECOVERING FROM OVERCURRENT
AUTO RESTART ON FAULT

Application

Low-power consumption
Offline converters
Power supply appliances

Specifications

ECCN US	EAR99	ECCN EU	NEC
Packing Type	Tube	Grade	Industrial

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Ratings and Reviews

E**e 02/03/2024

Goods is good quality and delivery is so fast.Thank you dear seller.

D**n 09/25/2023

All goods received, but haven't had a chance to check it yet.

B**n 05/13/2023

Got in the suburbs on the 43rd day. Thank you.

C**b 11/08/2022

Order received in 38 days. Capacitors exactly as described, all fully working, capacitance goes from 320.3 to 329.2uF and ESR from 0.11 to 0.14 ohms. Thank you.