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LNK6405D - Power Integrations

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LNK6405D Accurate Primary-Side Regulation CV/CC Switcher

LNK64x4-64x8 LinkSwitch-3 Family Energy-Efficient, Accurate Primary-Side Regulation CV/CC Switcher for Adapters and Chargers Product Highlights Dramatically Simplifies CV/CC Converters • Eliminates optocoupler and all secondary CV/CC control circuitry • Eliminates all control loop compensation circuitry Advanced Performance Features • Compensates for trans.

Features


• Compensates for transformer inductance tolerances
• Compensates for input line voltage variations
• Compensates for cable voltage drop
• Compensates for external component temperature variations
• Very accurate IC parameter tolerances using test trimming technology
• Frequency jittering greatly reduces EMI filter cost
• Programmable switching frequency up to 85 kHz to reduce trans- former size
• Minimum operation frequency fixed to improve transient load response Advanced Protection/Safety Features
• Auto-restart protection reduces power delivered by >90% for output short-circuit and contro.

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