The L6562N is a highly integrated Power Factor Correction (PFC) controller produced by STMicroelectronics, specifically designed for transition-mode (TM) operations. This advanced controller is part of ST's power management ICs, aimed at optimizing energy efficiency in a variety of applications such as power supplies for consumer electronics, adapters, and flat-panel monitors and TVs.
Key Features
- Transition Mode Operation: The device operates in transition mode, which ensures high efficiency over a wide range of loads, making it ideal for applications with varying power demands.
- Proprietary Multiplier Design: The L6562N features a proprietary multiplier for precise input current shaping, which helps achieve near-unity power factor and minimizes total harmonic distortion (THD).
- Low Startup Current: With a startup current of less than 70µA, the L6562N ensures low-power consumption during the initial phase, enhancing the overall efficiency of the system.
- Low Operating Supply Current: The operating supply current is less than 4mA, contributing to energy savings during normal operation.
- Embedded Error Amplifier: An internal error amplifier simplifies feedback loop design and supports the use of a simple resistor divider for output voltage regulation.
- Protection Features: The L6562N includes a range of protection features such as overvoltage protection (OVP), feedback disconnection (open-loop), and undervoltage lockout (UVLO) to ensure the safe operation of the end application.
Applications
The versatility of the L6562N allows it to be used in a wide array of applications requiring efficient power factor correction. Common applications include:
- AC-DC Adapters for Notebooks, PCs, and Servers
- Consumer Electronics Power Supplies
- Flat-Panel TV and Monitor Power Supplies
- LED Lighting with Power Factor Correction
The L6562N is available in a compact PDIP-8 package, making it suitable for designs where space is at a premium. Its robust design and comprehensive feature set make it a go-to choice for designers looking to enhance the energy efficiency of their power supply solutions without compromising on performance or reliability.
