Power Integrations InnoSwitch™3-TN

The new InnoSwitch™3-TN family slashes Energy Waste in Appliance Power Supplies by 75%. It dramatically increases the efficiency of auxiliary power supplies used in appliances, consumer products and industrial applications.
Power Integrations' InnoSwitch™3-TN flyback switcher ICs deliver simplicity, flexibility and industry-leading efficiency in high-output-current power supply designs. The new device is ideal for appliance and industrial auxiliary applications, providing a cost-effective upgrade from much less efficient buck regulator designs.

Key features

• 725 V primary MOSFET
• Up to 90% full-load efficiency
• Very low (<5 mW) no-load consumption
• Integrated FluxLink feedback, no optocoupler required

Additional features

• Flybacks with positive and negative output rails
• Incorporates a multi-mode Quasi Resonant (QR) / CCM flyback controller, 725 V primary MOSFET, secondary voltage and current sensing, SR driver
• Integrated FluxLink™ feedback
• Compact package reduces PCB area
• High efficiency across load range
• Accurate CV/CC independent of transformer design or external components
• Easily meets 20% regulation limit on 5 V output during zero load to full-load transients

Applications

• Low efficiency buck converters
• Auxiliary power supplies in appliances
• Auxiliary power supplies in industrial systems

Available tools

• Complete your InnoSwitch3-TN design in minutes with PI Expert.