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ВНИМАНИЕ, ОТКРЫТА ВЕЧНАЯ ПОДПИСКА. СТОИМОСТЬ ПОДПИСКИ - 1000 РУБ. (ПОДРОБНЕЕ О ПОДПИСКЕ)

Микросхема FAN4803CP1 DIP-8 10 шт./лот - Объявления на сайт

Микросхема FAN4803CP1 DIP-8 10 шт./лот

ПРОДАЖАВ избранное
Цена: 247,55 руб
Контакт AliExpress
Добавлено 2019-08-03 13:09:00
Создано

Описание

Купить Микросхема FAN4803CP1 DIP-8 10 шт./лот

8-Pin PFC and PWM Controller Combo

Features

• Internally synchronized PFC and PWM in one 8-pin IC

• Patented one-pin voltage error amplifier with advanced

input current shaping technique

• Peak or average current, continuous boost, leading edge

PFC (Input Current Shaping Technology)

• High efficiency trailing-edge current mode PWM

• Low supply currents; start-up: 150μA typ., operating:

2mA typ.

• Synchronized leading and trailing edge modulation

• Reduces ripple current in the storage capacitor between

the PFC and PWM sections

• Overvoltage, UVLO, and brownout protection

• PFC VCCOVP with PFC Soft Start

General Description

The FAN4803 is a space-saving controller for power factor

corrected, switched mode power supplies that offers very

low start-up and operating currents.

Power Factor Correction (PFC) offers the use of smaller, lower

cost bulk capacitors, reduces power line loading and stress on

the switching FETs, and results in a power supply fully compliant

to IEC1000-3-2 specifications. The FAN4803 includes

circuits for the implementation of a leading edge, average

current “boost” type PFC and a trailing edge, PWM.

The FAN4803-1’s PFC and PWM operate at the same

frequency, 67kHz. The PFC frequency of the FAN4803-2 is

automatically set at half that of the 134kHz PWM. This

higher frequency allows the user to design with smaller

PWM components while maintaining the optimum operating

frequency for the PFC. An overvoltage comparator shuts

down the PFC section in the event of a sudden decrease in

load. The PFC section also includes peak current limiting for

enhanced system reliability.

Особенности

Datasheet Click Download

Детали объявления

ID объявления: 851
Показов: 62
Истекает: 2020-10-02 13:09:00

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