Features Optimized for Lowest System Cost

• Fully integrated auto-restart for short-circuit and open

loop protection

• Self-biased supply – saves transformer auxiliary winding

and associated bias supply components

• Tight tolerances and negligible temperature variation on

key parameters eases design and lowers cost

• High maximum switching frequency allows very low

flux density transformer designs, practically eliminating

audible noise

• Frequency jittering greatly reduces EMI

• Packages with large creepage to high voltage pin

• Lowest component count switcher solution

Much Better Performance over Linear/RCC

• Lower system cost than RCC, discrete PWM and other

integrated solutions

• Universal input range allows worldwide operation

• Simple ON/OFF control – no loop compensation needed

• No bias winding – simpler, lower cost transformer

• High frequency switching – smaller and lower cost

transformer

• Very low component count – higher reliability and single

side printed circuit board

• High bandwidth provides fast turn on with no overshoot

and excellent transient load response

• Current limit operation rejects line frequency ripple

• Built-in current limit and hysteretic thermal shutdown

protection

EcoSmart®– Extremely Energy Efficient

• No-load consumption <300 mW without bias winding at

265 VAC input

• Meets California Energy Commission (CEC), Energy

Star, and EU requirements