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INN2105K

INN2105K Description

The INN2105K from Power Integrations is a high-performance offline switcher IC designed for flyback topology with secondary-side synchronous rectification (SR). It integrates a 650V breakdown voltage MOSFET, making it suitable for isolated power supplies up to 20W. The device operates at a switching frequency of 100kHz with a 60% duty cycle, ensuring efficient power conversion. Packaged in a 16-pin ESOP tube, it is surface-mount compatible and complies with REACH Unaffected and EAR99 regulations. Its over-temperature and over-voltage protection enhances reliability in demanding environments.

INN2105K Features

• Integrated 650V MOSFET for robust performance in offline applications.
• Secondary-side synchronous rectification (SR) improves efficiency and reduces heat dissipation.
• Wide input voltage range with isolated output for safety-critical designs.
• Protection features: Over-temperature (OTP) and over-voltage (OVP) for enhanced durability.
• Compact 16ESOP package with MSL 3 (168 hours) moisture sensitivity, suitable for automated assembly.
• 100kHz switching frequency optimizes power density and EMI performance.

INN2105K Applications

• Industrial power supplies: Ideal for 20W isolated converters in factory automation.
• Consumer electronics: Used in AC/DC adapters, LED drivers, and smart home devices.
• Telecom & networking: Provides efficient power for PoE, routers, and modems.
• Medical equipment: Compliant with isolation requirements for patient-connected devices.

Conclusion of INN2105K

The INN2105K stands out for its integrated SR, high-voltage capability, and robust protection, making it a superior choice for compact, efficient offline power solutions. Its surface-mount design and compliance with industry standards ensure versatility across industrial, consumer, and medical applications. Engineers benefit from its simplified design, reduced BOM cost, and reliable performance, positioning it as a leading solution in the 20W power conversion segment.