• Primary-side feedback eliminates opto-isolators and

simplifies design

• Direct drive of BJT switching device

• Multi-mode operation for highest overall efficiency

• Built-in cable drop compensation

• Very tight output voltage regulation

• No external compensation components required

• Complies with CEC/EPA no load power consumption

and average efficiency regulations

• Built-in output constant-current control with primary-side

feedback

• Low start-up current (10 μA typical)

• Built-in soft start

• Built-in short circuit protection and output overvoltage

protection

• Optional AC line under/overvoltage protection

• Fixed switching frequency: 45 kHz, 65 kHz or 75 kHz

• Dynamic base current control

• PFM operation at light load

• Built-in current sense resistor short protection