 |
 |
 |
FAN6204 − mWSaver™ Synchronous Rectification Controller for Flyback and Forward Freewheeling Rectification
FAN6204 is a secondary-side synchronous rectification (SR) controller to drive SR MOSFET for improving efficiency. The IC is suitable for flyback converters and forward free-wheeling rectification.
FAN6204 can be applied in continuous or discontinuous conduction mode (CCM and DCM) and quasi-resonant (QR) flyback converters based on the proprietary innovative linear-predict timing-control technique. The benefits of this technique include a simple control method without current-sense circuitry to accomplish noise immunity.
With PWM frequency tracking and secondary-side winding voltage detection, FAN6204 can operate in both fixed- and variable-frequency systems.
In Green Mode, the SR controller stops all SR switching operation to reduce the operating current. Power consumption is maintained at minimum level in light-load condition.
Buy Products
Request Free Samples
Product Status/Pricing/Packaging
| Product | Product & Eco Status | *Pricing | Packaging & Packing Info | **Package Marking Convention | Qualification Support | Compliance Certificates |
|---|---|---|---|---|---|---|
| FAN6204MY |
Full Production Green as of Mar 2010 |
$0.58 | SO 8L NB Details TAPE REEL |
Line 1:$Y (Fairchild logo) &Z (Plant Code) &2 (2-Digit Date Code) &K
Line 2:6204
Line 3:MYB |
FIT :
1
ESD (CDM) : 2000 V ESD (HBM) : 5000 V Show more... |
- Fairchild 1,000 piece Budgetary Pricing. *
- If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
- Top mark packaging information for product FAN6204 is available. **
Features
- mWSaver™ Technology:
- Internal Green Mode to Stop SR Switching for Lower No-Load Power Consumption
- 1.1mA Ultra-Low Green Mode Operating Current
- SR Controller
- Suited for Flyback Converter in QR, DCM, and CCM Operation
- Suited for Forward Freewheeling Rectification
- PWM Frequency Tracking with Secondary-Side Winding Voltage Detection
- Ultra-Low VDD Operating Voltage for Various Output Voltage Applications (5V~24V)
- VDD Pin Over-Voltage Protection (OVP)
- 12V (Typical) Gate Driver Clamp
- 8-Pin SOP Package
Applications
|
|
|
|
|
Application Notes
| Application Note | Description |
|---|---|
| AN-6920MR | Integrated Critical-Mode PFC / Quasi-Resonant Current-Mode PWM Controller FAN6920MR(795 K) 02-Apr-2013 |
| AN-6204 | FAN6204 - Synchronous Rectification Controller for Flyback and Forward Freewheeling Rectification(682 K) 10-Apr-2013 |
Reference Designs
| Application | Document Number | Featured Products | Output Power |
Input Voltage |
Topology |
|---|---|---|---|---|---|
| SMPS AIO PC Power | RD-353 | FAN6204, FAN6920MR, FAN7382 | 120W | 90~264V AC | Dual Switch Flyback |
| SMPS AIO PC Power | RD-352 | FAN6204, FAN6920MR, FAN7382 | 120W | 90~264V AC | Dual Switch Flyback |
| SMPS NB Adapter | RD-351 | FAN6204, FAN6920MR, FAN7382 | 90W | 90~264V AC | Dual Switch Flyback |
Online Seminar
A High Power Factor Flyback with Constant-Current Output for LED Lighting Applications This article explains the principles of AC/DC converters in flyback topology having a high power factor input and a constant current output. The most commonly used mode of operation for this purpose is boundary conduction mode (BCM). The basics of this mode are developed and its drawbacks are made clear. A simple method for improving power factor is introduced and explained in detail. Operating in DCM mode improves power factor and THD while reducing the peak drain voltage. A quick design example is given and the special issues of driving high power LEDs are explained. |
|
|
|
