The LM5022MME is a 100V, Current Mode Active Clamp PWM Controller from Texas Instruments. It is designed for high-performance isolated power converters, such as those used in telecom, industrial, and automotive applications. The active clamp topology improves efficiency and reduces voltage stress on the MOSFETs.

Applications

• Telecom power supplies
• Industrial power supplies
• Automotive power systems
• Isolated DC-DC converters
• Power over Ethernet (PoE) applications

Features

• Active clamp control for higher efficiency
• 100V maximum input voltage
• Current mode control
• Programmable oscillator frequency
• Adjustable duty cycle limit
• Integrated high-voltage start-up regulator
• Over-voltage and over-current protection
• Thermal shutdown protection

Benefits

• Improves efficiency and reduces MOSFET voltage stress with active clamp topology.
• Supports a wide range of input voltages up to 100V.
• Provides stable and reliable operation with current mode control.
• Allows customization of the switching frequency for optimal performance.
• Protects the converter from damage due to over-voltage, over-current, and over-temperature conditions.
• Simplifies design with an integrated high-voltage start-up regulator.

Additional Details

The LM5022MME leverages an active clamp topology to achieve higher efficiency and reduce voltage stress on the primary MOSFET. The current-mode control architecture offers excellent line and load regulation. The integrated high-voltage start-up regulator eliminates the need for an external start-up circuit, simplifying the design process. Programmable oscillator frequency allows designers to optimize the switching frequency for efficiency and component size. Comprehensive protection features, including over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown, ensure robust and reliable operation. The adjustable duty cycle limit provides flexibility to optimize the power converter for different operating conditions. The LM5022MME is well-suited for applications requiring high efficiency, robust performance, and compact size.