STMicroelectronics L6566A
The L6566A is an extremely versatile current-mode primary controller IC specifically designed for high-performance offline flyback converters operated from front-end power factor correction (PFC) stages in applications in compliance with EN61000-3-2 or JEITAMITI regulations. Both fixed-frequency (FF) and quasi-resonant (QR) operation are supported. The user can choose either of the two depending on application needs.| Part No. | L6566A |
|---|---|
| Datasheet | L6566A Download |
| Manufacturer |  STMicroelectronics |
| Description | Multi-mode controller |
| Buy | Stock & Price |
FEATURES
● Selectable multi-mode operation: fixed frequency or quasi-resonant● Onboard 700 V high-voltage startup
● Advanced light load management
● Low quiescent current (< 3 mA)
● Adaptive UVLO
● Line feedforward for constant power capability vs. mains voltage
● Pulse-by-pulse OCP, shutdown on overload (latched or auto-restart)
● Transformer saturation detection
● Switched supply rail for PFC controller
● Latched or auto-restart OVP
● Brownout protection
● -600/+800 mA totem pole gate-driver with active pull-down during UVLO
● SO16N package SO16N
APPLICATIONS
● Notebook, TV and LCD monitor adapters● High power chargers
● PDP/LCD TVs
● Consumer appliances, such as DVD players, VCRs, set-top boxes
● IT equipment, games, auxiliary power supplies
● Power supplies in excess of 150 W Figure 1. Block diagram VREF SS COMP VFF - 1 HV Icharge VCC 5 10 14 TIME SOFT-START OUT & FAULT MNGT VOLTAGE REGULATOR & ADAPTIVE UVLO OCP2 Reference voltages Internal supply UVLO VCC 9 LOW CLAMP & DISABLE O...
