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● Zero power consumption at no-load with lowest system
cost (< 5 mW at 230 Vac with typical application circuit)
● Intelligent low power management achieves ultra-low
operating current at no-load
● Adaptive load transient detection and fast response
● Very tight constant voltage and constant current
regulation over entire operating range
● Primary-side feedback eliminates opto-isolators and
simplifi es design
● EZ-EMI ® design enhances manufacturability
● Intrinsically low common mode noise
● Optimized 72 kHz maximum PWM switching frequency
achieves best size and effi ciency
● Active start-up scheme enables fastest possible start-up
● Adaptive multi-mode PWM/PFM control improves
effi ciency
● Quasi-resonant operation for highest overall effi ciency
● Direct drive of low-cost BJT switch
● No external compensation components required
● Complies with EPA 2.0 energy-effi ciency specifi cations
with ample margin
● Built-in soft start
● Built-in short circuit protection and output overvoltage
protection
● Built-in current sense resistor short circuit protection
● No audible noise over entire operating range
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