■ Primary-side feedback eliminates optoisolators and
simplifies design
■ Internal 800V bipolar junction transistor (BJT)
■ 64kHz PWM switching frequency
■ No-load power consumption < 100mW at 230VAC with
typical application circuit
■ Adaptive multi-mode PWM/PFM control improves
efficiency
■ Quasi-resonant operation for highest overall efficiency
■ EZ-EMI® design to easily meet global EMI standards
■ Dynamic BJT base drive current control
3 Applications
■ Low-power AC/DC power supply for smart meters,
motor control and industrial applications
■ Linear AC/DC replacement
■ Low-power AC/DC LED driver
■ 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
■ Low start-up current (8μA 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