Key facts
- Brand
- Fairchild
- Model
- FSQ500L
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-12
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Fairchild Semiconductor FSQ500L Compact Green-Mode Adapter Application Note
This document describes a detailed design strategy for a compact flyback converter using the FSQ500L, which combines a current-mode Pulse Width Modulator (PWM) with a single-chip 700V senseFET. The device is designed to replace linear power supplies to achieve low cost, reduced size, and increased efficiency for universal AC input voltage ranges.
Read onlineFairchild FSQ500L specifications
| Operating Frequency | 130KHz |
|---|---|
| No-load Power Consumption | less than 250mW |
| No-load Power Consumption (with auxiliary) | down to 60mW |
| Input Voltage Range | universal AC |
| Thermal Shutdown Threshold | approximately 140°C |
| TSD Recovery Temperature | lower than 60°C |
| Output Power (Design Example) | 2.04W |
Source: Fairchild Semiconductor FSQ500L Compact Green-Mode Adapter Application Note
All Fairchild FSQ500L documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
Does the FSQ500L require an auxiliary bias winding?
No, the FSQ500L needs no auxiliary bias winding as it uses an internal high-voltage regulator.
From: Fairchild Semiconductor FSQ500L Compact Green-Mode Adapter Application Note
What is the typical soft-start time with a 47uF capacitor?
The typical soft-start time is around 8ms when using a 47uF capacitor for C1.
From: Fairchild Semiconductor FSQ500L Compact Green-Mode Adapter Application Note
Does the FSQ500L require an auxiliary bias winding?
No, the device eliminates the need for an auxiliary bias winding and associated external components.
From: Fairchild Semiconductor FSQ500L Power Switch Datasheet
What is the maximum drain pin voltage?
The maximum drain pin voltage is 700V.
From: Fairchild Semiconductor FSQ500L Power Switch Datasheet