FSL518APG集成電路（IC）的ACDC轉(zhuǎn)換器離線(xiàn)開(kāi)關(guān)規(guī)格書(shū)PDF中文資料

FSL518APG屬于集成電路（IC）的ACDC轉(zhuǎn)換器離線(xiàn)開(kāi)關(guān)。由安森美半導(dǎo)體公司制造生產(chǎn)的FSL518APGAC DC 轉(zhuǎn)換器，離線(xiàn)開(kāi)關(guān)該系列是元器件級(jí)控制產(chǎn)品，用于構(gòu)建將交流市電轉(zhuǎn)換為直流電（通常電壓大幅降低）的設(shè)備。集成和未集成系統(tǒng)主要開(kāi)關(guān)元件的器件均包括在內(nèi)。由于高輸入輸出電壓比，以及此類(lèi)系統(tǒng)中通常需要隔離，這些器件通常與外部變壓器配合使用。盡管通常使用定制變壓器來(lái)實(shí)現(xiàn)此用途，但也有許多專(zhuān)門(mén)用于此用途的庫(kù)存產(chǎn)品，請(qǐng)參見(jiàn)“開(kāi)關(guān)轉(zhuǎn)換器，SMPS 變壓器”標(biāo)題。

Description

This user manual provides elementary information about an isolated

flyback with FSL518APG, it performs high efficiency and smaller

than 50 mW no?load power consumption. FSL518APG is an

integrated pulse width modulation (PWM) and 800 V power switch

with SENSEFET?, it can help to save external MOSFET and sense

resistor, increase power density and reliability. This application is

targeting auxiliary power supply for white goods and industrial

equipment, such as refrigerator, E?metering or similar types of

equipment.

The PWM controller includes an integrated variable frequency

oscillator, Under?Voltage Lockout (UVLO), Leading Edge Blanking

(LEB), optimized gate driver, internal soft?start, and temperature?

compensated precise current source for loop compensation and

self?protection circuitry. This design focuses mainly on the

FSL518APG current?mode PWM controller. Please refer to

FSL518APG’s materials to get more information about this device.

The FSL518APG is a current?mode PWM controller, it can have

better response to handle dynamic operation. Controller combines line

detection and burst?mode adjustment in one pin. It’s easy to achieve

these functionalities just need voltage divider and one Zener diode.

Line detection includes brown?in, brown?out and line OVP,

burst?mode adjustment is for fine tune audible noise and light load

efficiency. Of course, it also provides frequency reduction with

loading decreasing for gaining more design margin to improve light

load efficiency.

Key Features

? Integrated Rugged 800 V Super Junction

MOSFET with SENSEFET Technology

? Built?in HV Current Source for Start?up

? Peak?Current?Mode Control with Slope

Compensation

? Line Compensation for Maximum

Over?Power Limiting

? Advanced Soft?start for Low Electrical

Stress

? Peak?Current?Mode Control with Built?in

Slope Compensation

? Pulse?by?pulse Current Limit

? Line Brown?in, Brown?out,

and Over?Voltage Protection (LOVP)

? Adjustable Burst?mode Operation

? Frequency Hopping for Better EMI

? Various Protections:

? Auto Restart Mode: Brown?out, OLP,

OVP, AOCP and TSD

? Recovery Immediately by Triggering

Level: LOVP