FSL336LR 650V Integrated Power Switch with Error Amp and no bias winding for9Watt offline buck converters Product Overview
●The FSL336LR integrated Pulse Width Modulator (PWM) and SenseFET is specifically designed for high-performance offline buck,buck-boost, and non-isolation flyback Switched Mode Power Supplies (SMPS) with minimal external components. This device integrates a high-voltage power regulator that enables operation without auxiliary bias winding. An internal transconductance amplifier reduces external components for the feedback compensation circuit.The integrated PWM controller includes: 10 V regulator for no external bias circuit, Under-Voltage Lockout (UVLO), Leading-Edge Blanking (LEB), an optimized gate turn-on / turn-off driver, EMI attenuator, Thermal Shutdown (TSD), temperature-compensated precision current sources for loop compensation, and fault-protection circuitry. Protections include: Overload Protection (OLP), Over-Voltage Protection (OVP), and Feedback Open Loop Protection (FB_OLP). FSL336LR offers good soft-start performance during startup.
The internal high-voltage startup switch and the Burst-Mode operation with very low operating current reduce the power loss in Standby Mode. As the result, it is possible to reach power loss of 120 mW without external bias and 25 mW with external bias when input voltage is 230 V-AC.
●Features
■Built-in Avalanche-Rugged SenseFET: 650 V
■Fixed Operating Frequency: 50 kHz
■No-Load Power Consumption:
■< 25 mW at 230 V-AC with External Bias;
■<120 mW at 230 V-AC without External Bias
■No Need for Auxiliary Bias Winding
■Frequency Modulation for Attenuating EMI
■Pulse-by-Pulse Current Limiting
■Ultra-Low Operating Current: 250 μA
■Built-in Soft-Start and Startup Circuit
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[ high-performance offline buck ][ buck-boost ][ non-isolation flyback Switched Mode Power Supplies (SMPS) ] |
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Datasheet |
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Please see the document for details |
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PDIP7MINUSPIN 6GW;PDIP-7 |
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English Chinese Chinese and English Japanese |
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3/29/2019 |
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176 KB |
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