Description
The FSQ0370 consists of an integrated Current Mode Pulse Width Modulator(PWM) and an avalanche rugged 700V SenseFET. It is specifically designed for high-performance ofline Switched Mode Power Supplies
(SMPS) with minimal external components. The integrated PWM controller features include:a fixed-
frequency generating oscillator, Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), an optimized gate turn-on /turn-off driver, Thermal Shutdown (TSD) protection, and temperature-compensated precision current sources for loop compensation and fault protection circuitry.
Compared to a discrete MOSFET and controller or RCC switching converter solution, the FSQ0370 reduces total component count, design size, and weight while increasing efficiency, productivity, and system reliability.These devices provide a basic platform that is well suited for the design of cost-effective flyback converters, such as in PC auxiliary power supplies.
Features
· Internal Avalanche Rugged 700V SenseFET
· Consumes Only 0.8W at 230VAc& 0.5W Load with Burst-Mode Operation
· Precision Fixed Operating Frequency:100kHz Internal Startup Circuit and Built-in Soft-Start
· Pulse-by-Pulse Current Limiting, Auto-Restart Mode
· Over-Voltage Protection (OVP), Overload Protection(OLP), Internal Thermal Shutdown Function(TSD)
· Under-Voltage Lockout (UVLO)
· Low Operating Current:3mA
· Adjustable Peak Current Limit
Applications
· Auxiliary Power Supply for PC and Server· SMPS for VCR, SVR, STB, DVD, and DVCD Player
· Printer, Facsimile, and Scanner
· Adapter for Camcorder
(Picture: Pinout)
