Fairchild Semiconductor FSQ500N Green Mode Power Switch Datasheet

FSQ500N is a single-chip 700V SenseFET power switch from Fairchild Semiconductor Corporation, which features a precise fixed operating frequency, low power consumption, soft-start, under-voltage lockout, overload protection, etc. It is suitable for STB, DSL, home appliances and other applications.


Fairchild Semiconductor FSQ500N Green Mode Power Switch Datasheet - cover page
Brand
Fairchild
Category
Power Management
Document type
Datasheet
Language
English
Pages
12
File format
PDF
File size
828 KB
Published
12 July, 2012
Updated
30 September, 2023
MD5 checksum
E7A8654D65321E29EFA654011EA350C9

About this manual

The FSQ500N is a single-chip 700V SenseFET power switch that combines a current-mode Pulse Width Modulator (PWM) with a SenseFET. It is specifically designed for low-cost, small set-top boxes, DSL, and home appliance auxiliary power supplies. The device eliminates the need for an auxiliary bias winding by integrating a high-voltage regulator.

What's inside

  • Features
  • Applications
  • Application Circuit Diagram
  • Pin Configuration
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Typical Performance Characteristics

Specifications

Switching Frequency130 kHz
No-Load Consumption250mW
Package Type8-Lead MDIP

Frequently asked questions

What are the typical applications for the FSQ500N?

The device is designed for STB and DSL power supplies, as well as home appliance and IH cooker auxiliary power supplies.

Does the FSQ500N require an auxiliary bias winding?

No, the device eliminates the need for an auxiliary bias winding and associated external components.

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