Key facts
- Brand
- Fairchild
- Model
- FAN6756
- Industry
- Industrial
- Documents
- 3
- Languages
- JA · EN
- Last added
- 2012-08-01
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Fairchild FAN6756 Flyback Power Supply Application Note
This document is an application note for the Fairchild FAN6756, a next-generation PWM controller featuring Green Mode technology and AX-CAP technology to significantly reduce standby and no-load power consumption. It is designed to minimize external component count and eliminate the need for X2-capacitor bleeder resistors.
The guide provides a step-by-step design procedure for a 65W/19V offline switch-mode power supply (SMPS) using the flyback topology. It covers calculations for input power, input capacitors, MOSFET voltage ratings, transformer inductance, and current sensing resistors, along with specific design examples. This manual is written in Japanese.
Fairchild FAN6756 specifications
| Technology | Green Mode PWM Controller with AX-CAP technology |
|---|---|
| Application Example | 65W / 19V Offline Switch-Mode Power Supply |
| Topology | Flyback |
Source: Fairchild FAN6756 Flyback Power Supply Application Note
All Fairchild FAN6756 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
What is the main benefit of the FAN6756?
It significantly reduces power consumption during standby and no-load conditions with few external components.
From: Fairchild FAN6756 Flyback Power Supply Application Note
Does the FAN6756 require a bleeder resistor for X2 capacitors?
No, the built-in discharge circuit allows for the elimination of X2-capacitor bleeder resistors.
From: Fairchild FAN6756 Flyback Power Supply Application Note
What is the main feature of the FAN6756 controller?
It incorporates innovative mWSaver™ technology which dramatically reduces standby and no-load power consumption.
From: Fairchild Semiconductor FAN6756 Flyback Power Supply Application Note
How does the FAN6756 reduce EMI filter losses?
It uses AX-CAP™ technology to remove the X-capacitor bleeder resistor and its associated loss through intelligent detection and discharge methods.
From: Fairchild Semiconductor FAN6756 Flyback Power Supply Application Note
What topologies is the FAN6756 designed for?
It is designed for Single-Ended Topologies, such as Flyback and Forward Converters.
From: Fairchild Semiconductor FAN6756 PWM Controller Datasheet
What is the minimum switching frequency in standby mode?
The controller linearly decreases its switching frequency to a minimum of 23 kHz.
From: Fairchild Semiconductor FAN6756 PWM Controller Datasheet