FSQ0365 Datasheet | onsemi

Description A Valley Switching Converter generally shows lower EMI and higher power conversion efficiency than a conventional hard- switched converter with a fixed switching frequency. The FSQ- series is an integrated Pulse- Width Modulation (PWM) controller and SENSEFET® specifically designed for valley switching operation with minimal external ponents. The PWM controller includes an integrated fixed- frequency oscillator, under- voltage lockout, Leading- Edge Blanking (LEB), optimized gate driver, internal soft- start, temperature- pensated precise current sources for loop pensation, and self- protection circuitry. pared with discrete MOSFET and PWM controller solutions, the FSQ- series reduces total cost, ponent count, size and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform for cost- effective designs of valley switching fly- back converters. Features - Optimized for Valley Switching Converter (VSC) - Low EMI through Variable Frequency Control and Inherent Frequency Modulation - High Efficiency through Minimum Voltage Switching - Narrow Frequency Variation Range Over Wide Load and Input Voltage Variation - Advanced Burst- Mode Operation for Low Standby Power Consumption - Pulse- by- Pulse Current Limit - Protection Functions: Overload Protection (OLP), Over- Voltage Protection (OVP), Abnormal Over- Current Protection (AOCP), Internal Thermal Shutdown (TSD) - Under- Voltage Lockout (UVLO) with Hysteresis - Internal Startup Circuit - Internal High- Voltage SENSEFET: 650 V - Built- in Soft- Start: 15 ms Related Application Notes - http://.onsemi./pub/Collateral/AN- 4137.pdf.pdf - http://.onsemi./pub/Collateral/AN- 4141.pdf.pdf - http://.onsemi./pub/Collateral/AN- 4150.pdf.pdf - https://.onsemi./pub/Collateral/AN- 4134.PDF .onsemi. PDIP- 8 CASE 626- 05 PDIP8 GW CASE 709AJ MARKING DIAGRAM $Y&E&Z&2&K FSQxxxx $Y &E &Z &2 &K FSQxxxx = ON Semiconductor Logo = Designated Space = Assembly Plant Code = 2- Digit...