InnoSwitch3-EP: High-Efficiency, Eco-Friendly Off-Line CV/CC QR Flyback Switcher IC.pdf

Compact, Efficient Off-Line CV/CC QR Flyback Switcher ICs

The InnoSwitch3-EP family of ICs simplifies flyback power converter design, particularly for applications requiring high efficiency and compact size. Key features include:

Core Components & Functionality:

Integrated 725 V MOSFET: Enables efficient power transfer.
Quasi-Resonant (QR) / CCM Flyback Controller: Optimizes performance across the full load range.
Secondary-Side Sensing and Synchronous Rectification Driver: Improves efficiency and reduces heat dissipation.
FluxLink™ Feedback: Provides safe, reliable, and cost-effective inductive coupling for accurate output voltage and current feedback.

Performance & Protection:

Up to 94% Efficiency: Across the full load range.
EcoSmart™ Features: Low no-load power consumption (less than 15 mW) and easy compliance with global energy efficiency regulations.
Advanced Safety Features:
Secondary MOSFET or diode short-circuit protection
Open SR FET-gate detection
Fast input line UV/OV protection
Auto-restart fault response for output OVP

Applications:

Suitable for a wide range of applications including:

Auxiliary, standby and bias power supplies for appliances, computers, and consumer products.
Utility meter, smart grid, and industrial power supplies.

Available Products (August 2018):

Table 1 summarizes output power capabilities for several InnoSwitch3-EP variants, with peak and continuous power ratings, package type, and minimum continuous power at 40°C ambient.

Key Benefits:

Compact Footprint: Ideal for space-constrained designs.
High Integration: Simplifies design and manufacturing.
Global Regulatory Compliance: UL1577 and TUV (EN60950) safety approval, EN61000-4 noise immunity.
* Green Packaging: Halogen free and RoHS compliant.