Key facts
- Brand
- Fairchild
- Model
- FAN6751
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-01
Start here
Fairchild FAN6751 Highly Integrated Green-Mode PWM Controller Application Note
The document is an application note (AN-6073) detailing the design of a high-efficiency, compact flyback converter using the Fairchild FAN6751 series of PWM controllers. It highlights features such as off-time modulation and burst mode for light-load conditions to meet power conservation requirements, along with internal protection circuits like open-loop protection and over-voltage protection.
The note provides detailed design strategies including startup and soft-start circuitry, under-voltage lockout (UVLO) specifications, feedback circuit configuration, and the implementation of synchronized slope compensation for stable peak-current-mode control in continuous conduction mode.
Fairchild FAN6751 specifications
| Low Operating Current | 4mA |
|---|---|
| Minimum PWM Frequency | 18KHz |
| Gate Output Maximum Voltage Clamp | 18V |
| Turn-on Threshold Voltage (VDD) | 16.5V |
| Turn-off Threshold Voltage (VDD) | 10.5V |
Source: Fairchild FAN6751 Highly Integrated Green-Mode PWM Controller Application Note
All Fairchild FAN6751 documents by type
How to use the product for one specific task, with worked examples.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the minimum PWM frequency of the FAN6751?
The minimum PWM frequency is set above 18KHz to avoid acoustic noise problems.
From: Fairchild FAN6751 Highly Integrated Green-Mode PWM Controller Application Note
What is the minimum PWM frequency set to avoid acoustic noise?
The minimum PWM frequency is set above 18KHz.
From: Fairchild FAN6751 Highly Integrated Green-Mode PWM Controller Application Note
What is the operating supply current of the FAN6751MR?
The operating supply current is 4mA.
From: Fairchild Semiconductor FAN6751MR Highly-Integrated Green-Mode PWM Controller Datasheet
What is the minimum PWM frequency in green mode?
The minimum PWM frequency is set above 18KHz.
From: Fairchild Semiconductor FAN6751MR Highly-Integrated Green-Mode PWM Controller Datasheet