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BUY UCC3818AD https://www.utsource.net/itm/p/1862612.html
BiCMOS POWER FACTOR PREREGULATOR
Description: The UCC3818AD is a high-performance current-mode PWM controller designed for use in off-line and DC-to-DC converter applications. Features: Low Start-up Current Low Standby Current Low Operating Current High Efficiency Low Output Ripple Internal Soft-Start Internal Frequency Compensation Internal Slope Compensation Internal Voltage Reference Internal Over-Current Protection Internal Over-Voltage Protection Internal Under-Voltage Lockout Internal Thermal Shutdown Internal Leading Edge Blanking Internal Frequency Foldback Internal Over-Temperature Protection Internal Over-Voltage Protection Internal Under-Voltage Lockout Internal Soft-Start Internal Frequency Compensation Internal Slope Compensation Internal Voltage Reference Internal Over-Current Protection Internal Over-Voltage Protection Internal Under-Voltage Lockout Internal Thermal Shutdown Internal Leading Edge Blanking Internal Frequency Foldback Internal Over-Temperature Protection Applications: Off-line and DC-to-DC Converters Switching Power Supplies Uninterruptible Power Supplies Battery Chargers Motor Drives Lighting Control Automotive Applications (For reference only)