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www.fairchildsemi.com

FSD1000

Features

Combo Fairchild Power Switch (FPS

TM

)

Description

FSD1000 is a Fairchild Power Switch (FPS) that is specially

designed for SMPS of personal computer. This device is a

high voltage power SenseFET combined with two PWM

controllers in a single monolithic device; One is for main power

and the other is for auxiliary power. The PWM controllers

feature integrated oscillator, under voltage lockout,

optimized gate driver and temperature compensated precise

current sources for the loop compensation. This device also

includes various fault protection circuits such as line under/

over voltage lock out, over voltage protection, over load

protection and over temperature protection. Compared with

discrete MOSFET and PWM controller solution, FSD1000

can reduce total cost, component count, size and weight

simultaneously increasing efficiency, productivity and

system reliability

鈥?Current Mode Control for Main Power

鈥?Voltage Mode Control for Auxiliary Power

鈥?Synchronized switching of Main and Auxiliary Power

(70kHz)

鈥?Internal Start-up Circuit

鈥?Internal Soft Start for Auxiliary Power

鈥?User Defined Soft Start for Main Power

鈥?Pulse by Pulse Current Limiting

鈥?Over Load Protection (Main : Latch Mode, Aux : Auto

Restart Mode)

鈥?Internal Over Temperature Protection

鈥?Vcc Under Voltage Lockout

鈥?Line Under voltage/ Over Voltage Lockout

鈥?Burst Mode Operation for auxiliary power to reduce the

Power Consumption in the Standby Mode

鈥?Internal High Voltage SenseFET for auxiliary power

Application

鈥?SMPS for PC power

鈥?LCD TV Power Supply

Typical Circuit

Main Output

V

STR

AC

IN

LS2

Output

Main

PWM

I

sense

Main Off

LS1

Aux Output

S/S

Drain

Aux

PWM

GND

V

FB.aux

I

LIM

V

FB.main

Vcc

Figure 1. Typical Application circuit

Rev.1.0.2

漏2004 Fairchild Semiconductor Corporation

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FSD1000相關(guān)型號PDF文件下載

• 型號
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  下載
• FSD1000
  英文版
  Combo Fairchild Power Switch (FPS)
  FAIRCHILD
  FSD1000
• FSD1000
  英文版
  Combo Fairchild Power Switch (FPS)
  FAIRCHILD ...
  FSD1000

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