CV/CC Switcher 7-Pin PDIP-B

LinkSwitch is specifically designed to replace all linear transformer/RCC chargers and adapters in the =3 W universal range at equal or lower system cost with much higher performance and energy efficiency. LinkSwitch introduces a revolutionary topology for the design of low power switching power supplies that rivals the simplicity and low cost of linear adapters, and enables a much smaller, lighter, and attractive package when compared with the traditional “brick.” With efficiency of up to 75% at 3 W output and < 300 mW no-load consumption, a LinkSwitch solution can save the end user enough energy over a linear design to completely pay for the power supply cost in less than one year. LinkSwitch integrates a 700 V power MOSFET, PWM control, high voltage start-up, current limit, and thermal shutdown circuitry, onto a monolithic IC.

• Minimum Power Output : 5.5 W
• Typical : 3.5 W
• No-Load Input Power : <500 mW2
• Lowest cost and component count, 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
• 3 W output with EE13 core for low cost and small size