HF500-15 Fixed Frequency Multi-Mode Flyback Regulator Integrated with Highly Rugged MOSFET DESCRIPTION FEATURES The HF500-15 is a fixed-frequency, current- 700V/4.5 Integrated MOSFET with high mode regulator with built-in slope compensation. single pulse avalanche energy It combines a 700V MOSFET of high avalanche Fixed-Frequency Current-Mode-Control ruggedness and a full-featured controller into Operation with Built-In Slope Compensation one chip for a low-power, offline, flyback, Frequency Foldback Down to f at OSC(min) switch-mode power supply. Light Load At medium and heavy loads, the regulator Burst Mode for Low Standby Power works in a fixed frequency with frequency Consumption jittering, which helps to spread energy out in a Frequency Jittering for a Reduced EMI conducted mode. During a light-load condition, Signature the regulator freezes the peak current and Over-Power Compensation reduces its switching frequency to f to OSC(min) Internal High-Voltage Current Source offer excellent efficiency at light load. At very VCC Under-Voltage Lockout (UVLO) with light loads, the regulator enters burst mode to Hysteresis achieve low standby power consumption. Programmable Input B/O and OVP Full protection features include thermal Overload Protection (OLP) with a shutdown, brown-in and brownout, VCC under- Programmable Delay voltage lockout (UVLO), overload protection Latch-Off Protection on TIMER (OLP), short-circuit protection (SCP), input and Thermal Shutdown (Auto-Restart with output over-voltage protection (OVP), and over- Hysteresis) temperature protection (OTP) . Short-Circuit Protection (SCP) Programmable Soft Start The HF500-15 features timer-based fault detection and over-power compensation to APPLICATIONS ensure that the overload is independent of the Power Supplies for Home Appliances input voltage. Set-Top Boxes The HF500-15 is available in a SOIC8-7B Standby and Auxiliary Power package. Adapters 3 Maximum Output Power All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. 85Vac~265Vac For MPS green status, please visit the MPS website under Quality 230Vac 15% Assurance. MPS and The Future of Analog IC Technology are registered Open Open trademarks of Monolithic Power Systems, Inc. 1 1 Adapter Adapter 2 2 Frame Frame P OUT 12 15 10 12 (W) Notes: 1. Maximum continuous power in a non-ventilated enclosed adapter measured at 50 ambient temperature. 2. Maximum continuous power in an open frame design at 50 ambient temperature. 3. The junction temperature can limit the maximum output power. HF500-15 Rev. 1.03 www.MonolithicPower.com 1 1/10/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. V BUS HF500-15 FULL-FEATURED FLYBACK REGULATOR TYPICAL APPLICATION T1 Output V BUS Input 85 ~ 265 Vac SOURCE 5 4 DRAIN GND 6 B/O VCC 7 2 FB TIMER 8 1 HF500-15 Rev. 1.03 www.MonolithicPower.com 2 1/10/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved.