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reference designHF500A-20 | Demoboard EVHF500A-20-P-00A

Monolithic Power Systems HF500A-20 | Demoboard EVHF500A-20-P-00A

100VAC/60Hz to 265VAC/50Hz, 12V/1.5A Output, 18W, AC/DC Power Supply Converter

Overview

TopologyFlyback Converter
Input voltage100-265 V
Output 112 V / 1.5 A
IC revision1

Description

The EVHF500A-20-P-00A is an evaluation board designed to demonstrate the capabilities of the HF500A-20, a single-stage, isolated flyback power supply converter in AC/DC power module and adapter applications.The HF500A-20 is a fixed-frequency, current-mode regulator with built-in slope compensation. It combines a 700V MOSFET and a full-featured controller into one chip for a low-power, offline, flyback switch-mode power supply. The device optimizes EMI performance, especially for radiated emission.The HF500A-20 features a wide 100VAC to 265VAC input voltage (VIN) range and a 12V/1.5A constant voltage output.The HF500A-20 achieves low standby power consumption and high efficiency under full-load conditions. The HF500A-20 can pass EN55022/CISPR 22 Class B standards for both conducted emissions (CE) and radiated emissions (RE).

Features

  • Fixed Frequency, Current Mode Control, and Internal Slope Compensation
  • 700V/2.6Ω Integrated MOSFET
  • Frequency Foldback Down to 25kHz at Light Loads
  • Burst Mode for Low Standby Power Consumption
  • Frequency Jittering (fJITTER) for Reduced Electromagnetic Interference (EMI)
  • Over-Power Compensation (OPC)
  • Internal High-Voltage Current Source
  • VCC Under-Voltage Lockout (UVLO) Protection with Hysteresis
  • Configurable VIN Brownout Protection and Input Over-Voltage Protection (OVP)
  • VCC Over-Voltage Protection (OVP)
  • Overload Protection (OLP) with Configurable Delay
  • Short-Circuit Protection (SCP)
  • Latch-Off Protection via the TIMER Pin
  • Configurable Soft Start (SS)
  • Thermal Shutdown with Auto-Restart and Hysteresis
  • Available in a PDIP8-7B Package

Typical applications

  • Home Appliance Power Supplies, Standby and Auxiliary Power

More information

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768772102
SPECWE-TI HV Radial Leaded Wire Wound Inductor (High Voltage), 1000 µH, 0.5 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI HV Radial Leaded Wire Wound Inductor (High Voltage)
Inductance1000 µH
Rated Current0.5 A
Saturation Current0.55 A
DC Resistance2.08 Ω
Self Resonant Frequency1.8 MHz
MountTHT 
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