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FAN4822IM sop16

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FAN4822 корпус soic16 - контроллер PFC

Ціна:

89,00 грн.

Тип корпуса SMD SOIC16

Features

• Average current sensing, continuous boost, leading edge

PFC for low total harmonic distortion and near unity

power factor

• Built-in ZVS switch control with fast response for high

efficiency at high power levels

• Average line voltage compensation with brownout control

• Current fed gain modulator improves noise immunity and

provides universal input operation

• Overvoltage comparator eliminates output “runaway” due

to load removal

• UVLO, current limit, and soft-start

• Precision 1.3% reference

General Description

The FAN4822 is a PFC controller designed specifically for

high power applications. The controller contains all of the

functions necessary to implement an average current boost

PFC converter, along with a Zero Voltage Switch (ZVS) con-

troller to reduce diode recovery and MOSFET turn-on

losses.

The average current boost PFC circuit provides high power

factor (>98%) and low Total Harmonic Distortion (THD).

Built-in safety features include undervoltage lockout, over-

voltage protection, peak current limiting, and input voltage

brownout protection.

The ZVS control section drives an external ZVS MOSFET

which, combined with a diode and inductor, soft switches the

boost regulator. This technique reduces diode reverse recov-

ery and MOSFET switching losses to reduce EMI and maxi-

mize efficiency.