(China (Mainland))
Product Summary
The DMO265R is a integrated Pulse Width Modulator. It is specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. The DMO265R 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. The applications of the DMO265R are SMPS for VCR, SVR, STB, DVD & DVCD, SMPS for Printer, Facsimile & Scanner, Adaptor for Camcorder.
Parametrics
DMO265R absolute maximum ratings: (1)Drain Current Pulsed:8.0ADC; (2)Single Pulsed Avalanche Energy:68mJ; (3)Maximum Supply Voltage:20V; (4)Analog Input Voltage Range:-0.3V to VSD; (5)Total Power Dissipation:1.39W; (6)Operating Junction Temperature.:+150℃; (7)Operating Ambient Temperature.:-25℃ to +85℃; (8)Storage Temperature Range.:-55℃ to +150℃.
Features
DMO265R features: (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; (8)Over Voltage Protection ; (9)Over Load Protection; (10)Internal Thermal Shutdown Function; (11)Auto-Restart Mode; (12)Under Voltage Lockout; (13)Low Operating Current (3mA); (14)Adjustable Peak Current Limit; (15)Built-in Soft Start.
Diagrams
