基于UCC28600型号的准谐振反向控制器

　　描述

　　The UCC28600 is a PWM controller with advanced energy features to meet stringent world-wide energy efficiency requirements.

　　UCC28600 integrates built-in advanced energy saving features with high-level protection features to provide cost-effective solutions for energy-efficient power supplies. UCC28600 incorporates frequency fold-back and green-mode operation to reduce the switching losses at light-load and no-load conditions.

　　UCC28600 is available in the 8-pin SOIC package. Operating junction temperature range is –40°C to +105°C.

　　The UCC28600 Design Calculator, (SLVC104), located in the Tools and Software section of the UCC28600 product folder, provides a user-interactive iterative process for selecting recommended component values for an optimal design.

　　特性

　　Green-Mode Controller With Advanced Energy

　　Saving Features

　　Quasi-Resonant Mode Operation for Reduced

　　EMI and Low Switching Losses (Low-Voltage

　　Valley Switching)

　　Low Standby Current for Minimum System No-

　　Load Power Consumption

　　Low Start-up Current: 25-µA Maximum

　　Programmable Line and Load Over-Voltage

　　Protection

　　Internal Over-Temperature Protection

　　Current Limit Protection

　　Cycle-by-Cycle Power Limit

　　Primary-Side Over-Current Hiccup Restart

　　Mode

　　1-A Sink, –0.75-A Source TrueDrive™ Gate Drive

　　Output

　　Programmable Soft-Start

　　Green-Mode Status Pin (PFC Disable Function)

　　Applications

　　Bias Supplies for LCD-Monitors, LCD-TV, PDP-TV, and Set Top Boxes

　　AC-to-DC Adapters and Off-Line Battery Chargers

　　Energy Efficient Power Supplies up to 200 W

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