This post explains for the Power Switch.
The Part Number is DL0165R, FSDL0165RN.
The function of this semiconductor is Green Mode Fairchild Power Switch.
The package is DIP, SOP 8 Pin Type
Manufacturer: Fairchild Semiconductor
Preview images :
The DL0165R is an integrated Pulse Width Modulator (PWM) and Sense FET specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high voltage power switching regulator which combine an avalanche rugged Sense FET with a current mode PWM control block.
The integrated PWM controller features include: a fixed oscillator with frequency modulation for reduced EMI, Under Voltage Lock Out (UVLO) protection, Leading Edge Blanking (LEB), optimized gate turn-on/turn-off driver, Thermal Shut Down (TSD) protection, Abnormal Over Current Protection (AOCP) and temperature compensated precision current sources for loop compensation and
fault protection circuitry.
1. Internal Avalanche Rugged Sense FET
2. Consumes only 0.65W at 240VAC & 0.3W load with Advanced Burst-Mode Operation
3. Frequency Modulation for low EMI
4. Precision Fixed Operating Frequency
5. Internal Start-up Circuit
6. Pulse by Pulse Current Limiting
7. Abnormal Over Current Protection
1. SMPS for VCR, SVR, STB, DVD & DVCD
2. SMPS for Printer, Facsimile & Scanner
3. Adaptor for Camcorder