Fairchild AN4116 Specifications Manual

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Application Note 4116 A Fairchild Power Switch (FPS) based on Switched Mode Power Supply for LCD Monitor Use

1. Introduction FS6M series for the LCD monitor power supply and adaptor, which improves upon the existing KA5X-series.

This application note describes a complete flyback switched

FS6Mxx652RT has one package type: TO-220F-5L as

mode power supply that uses a Fairchild Power Switch. The

shown below. Fairchild Power Switch is classified according

MOSFET and its control IC are built into one package. The

to the voltage and current rating of the internal Sense FET.

MOSFET is in fact a Sense FET. Various protection features

The FS6M series parts with absolute voltage and absolute

are also included. Fairchild Power Switch can enhance the

current ratings of 650V/7A and 650V/12A. When in power

reliability and productivity of the system when compared to

saving mode, the FS6M series pulls down the output

other designs. The FS6M series has a more avalanche rugged

voltages to a predetermined level and enters burst mode with

Sense FET than the previous Fairchild Power Switch series.

a switching frequency of 70k Hz.

The FS6M series features include burst mode operation for low power consumption in DPMS mode. This application note describes the features and design considerations of the

FSC 6M07652R

TO-220F-5L

Figure 1-1. Package Line-Up

Table 1: Product Line-up (LCD Monitor Application)

Product Rating Package

FS6M07652RTC 7A/650V TO-220F-5L

FS6M12653RTC 12A/650V TO-220F-5L

Rev. 1.0.0

©2002 Fairchild Semiconductor Corporation