Topology | Flyback Converter |
Input voltage | 85-600 V |
Switching frequency | 45.5-54.5 kHz |
Output 1 | 5 V / 1 A |
Output 2 | 12 V / 0.4 A |
IC revision | 1.0.1 |
The FSL116LR integrates a Pulse Width Modulator (PWM) and SenseFET is specifically designed for highperformance offline Switch-Mode Power Supplies (SMPS) with minimal external components. FSL116LR 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 FSL116LR offers good soft-start performance. When compared to a discrete MOSFET and controller or RCC switching converter solution, the FSL116LR 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.