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● Primary-side feedback eliminates opto-isolators and

simplifies design

● No-load power consumption < 20 mW at 230 Vac with

typical application circuit (5 star rating)

● Active start-up scheme enables fastest possible startup

● Fast dynamic load response

● Adaptive multi-mode PWM/PFM control improves

efficiency

● Quasi-resonant operation for highest overall efficiency

● EZ-EMI? design to easily meet global EMI standards

● Direct drive of low-cost BJT switch

● Dynamic base current control

● Very tight constant voltage and constant current

regulation with primary-side-only feedback

● No external compensation components required

● Complies with EPA 2.0 energy-efficiency specifications

with ample margin

● Ultra-low start-up current (1.5 μA typical)

● 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