EVBUM2651/D 15 W Auxiliary Power for White Goods and Industrial Equipment with FSL538APG www.onsemi.com EVAL BOARD USERS MANUAL Table 1. GENERAL SPECIFICATIONS Devices Applications Input Voltage Output Power Topology Board Size FSL538APG White Goods and 90265 Vac 15 W Isolated Flyback 88 38 22 mm 3 Industrial Power 2.89 W/inch Supplies Operating Temperature Output Spec. Turn on time Efficiency Cooling Standby Power 15 V/0.15 A < 200 ms Above 85% 050 C Convection Open < 50 mW & Full Load Frame 230 Vac 12 V/1 A Key Features Description This user manual provides elementary information about Integrated Rugged 800 V Super Junction a Nonisolated dual output flyback with FSL538APG, it performs MOSFET with SENSEFET Technology high efficiency and smaller than 50 mW noload power consumption. Builtin HV Current Source for Startup FSL538APG is an integrated pulse width modulation (PWM) and PeakCurrentMode Control with Slope 800 V power switch with SENSEFET , it can help to save external Compensation MOSFET and sense resistor, increase power density and reliability. Line Compensation for Maximum This application is targeting auxiliary power supply for white goods OverPower Limiting and industrial equipment, such as refrigerator, Emetering or similar Advanced Softstart for Low Electrical types of equipment. Stress The PWM controller includes an integrated variable frequency oscillator, UnderVoltage Lockout (UVLO), Leading Edge Blanking PeakCurrentMode Control with Builtin (LEB), optimized gate driver, internal softstart, and builtin error Slope Compensation amplifier for feedback connection directly and self protection Pulsebypulse Current Limit circuitry. This design focuses mainly on the FSL538APG Line Brownin, Brownout, current mode PWM controller. Please refer to FSL538APGs and OverVoltage Protection (LOVP) materials to get more information about this device. Adjustable Burstmode Operation The FSL538APG is a current mode PWM controller, it can have Frequency Hopping for Better EMI better response to handle dynamic operation. Controller combines line Various Protections: detection and burstmode adjustment in one pin. Its easy to achieve Auto Restart Mode: Brownout, OLP, these functionalities just need voltage divider and one Zener diode. OVP, AOCP and TSD Line detection includes brown in, brown out and line OVP, burstmode adjustment is for fine tune audible noise and light load Recovery Immediately by Triggering efficiency. Of course, it also provides frequency reduction with Level: LOVP loading decreasing for gaining more design margin to improve light load efficiency. Semiconductor Components Industries, LLC, 2019 1 Publication Order Number: July, 2019 Rev. 1 EVBUM2651/DEVBUM2651/D DETAIL DEMOBOARD SCHEMATIC DESCRIPTION Figure 1. FSL538AFLYGEVB DemoBoard Main Board Schematic www.onsemi.com 2