LNK500GN

Микросхема LNK500GN

LNK500GN - AC-DC Power Conversion - LinkSwitch 3W 85-265 VAC 4W 230 VAC, SMD-7

 

Cost Effective Linear/RCC Replacement

• Lowest cost and component count, constant voltage (CV) or constant voltage/constant current (CV/CC) solution
• Extremely simple circuit configuration
• Up to 75% lighter power supply reduces shipping cost
• Primary based CV/CC solution eliminates 10 to 20 secondary components for low system cost
• Combined primary clamp, feedback, IC supply, and loop compensation functions – minimizes external components
• Fully integrated auto-restart for short circuit and open loop fault protection – saves external component costs
• 42 kHz operation simplifies EMI filter design 

 

Much Higher Performance Over Linear/RCC

• Universal input range allows worldwide operation
• Up to 70% reduction in power dissipation – reduces enclosure size significantly
• CV/CC output characteristic without secondary feedback
• System level thermal and current limit protection
• Meets all single point failure requirements with only one additional clamp capacitor
• Controlled current in CC region provides inherent soft-start
• Optional opto feedback improves output voltage accuracy

 

EcoSmart™ – Extremely Energy Efficient

• Consumes <300 mW at 265 VAC input with no load
• Meets California Energy Commission (CEC), Energy Star, and EU requirements
• No current sense resistors – maximizes efficiency

 

Applications

• Linear transformer replacement in all ≤3 W applications
• Chargers for cell phones, cordless phones, PDAs, digital cameras, MP3/portable audio devices, shavers, etc.
• Home appliances, white goods and consumer electronics
• Constant output current LED lighting applications
• TV standby and other auxiliary supplies