●The FSL126MR integrated Pulse Width Modulator (PWM) and SenseFET is specifically designed for highperformance offline Switch-Mode Power Supplies (SMPS) with minimal external components. FSL126MR includes integrated high-voltage power switching regulators that combine an avalanche-rugged SenseFET with a current-mode PWM control block. The integrated PWM controller includes: Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), a frequency generator for EMI attenuation, an optimized gate turn-on/turn-off driver, Thermal Shutdown (TSD) protection, and temperaturecompensated precision current sources for loop compensation and fault protection circuitry. The FSL126MR offers good soft-start performance. When compared to a discrete MOSFET and controller or RCC switching converter solution, the FSL126MR reduces total component count, design size, and weight; while increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for the design of cost-effective flyback converters.
●Features
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● Internal Avalanche-Rugged SenseFET (650V)
● Under 50mW Standby Power Consumption at265VAC, No-load Condition with Burst Mode
● Precision Fixed Operating Frequency withFrequency Modulation for Attenuating EMI
● Internal Startup Circuit
● Built-in Soft-Start: 15ms
● Pulse-by-Pulse Current Limiting
● Various Protections: Over-Voltage Protection(OVP), Overload Protection (OLP), Output-ShortProtection (OSP), Abnormal Over-CurrentProtection (AOCP), Internal Thermal ShutdownFunction with Hysteresis (TSD)
● Auto-Restart Mode
● Under-Voltage Lockout (UVLO)
● Low Operating Current: 1.8mA
● Adjustable Peak Current Limit
Part 3D Model
