Design Flexible, EcoSmart®, Integrated Off-line Switcher
Features eliminate or reduce cost of external components
Fully integrated soft-start for minimum stress/overshoot
Externally settable accurate current limit
Wider duty cycle for more power, smaller input capacitor
Line under-voltage (UV) detection: no turn off glitches
Line overvoltage (OV) shutdown extends line surge limit
Line feed forward with maximum duty cycle (DCMAX) reduction rejects ripple and limits DCMAX at high line
Single resistor sets OV/UV thresholds, DCMAX reduction
Frequency jittering reduces EMI and EMI filtering costs
Regulates to zero load without dummy loading
132 kHz frequency reduces transformer/power supply size
Half frequency option for video applications
Hysteretic thermal shutdown for automatic recovery
Large thermal hysteresis prevents PC board overheating
Standard packages with omitted pins for large creepage
Active-on and active-off remote ON/OFF capability
Synchronizable to a lower frequency