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reference designHFC0310

Monolithic Power Systems HFC0310

Fixed-Frequency Flyback Controller

Overview

TopologyFlyback Converter
Input voltage85-420 V
Switching frequency600 kHz
Output 112 V / 0.8 A
IC revision1.02

Description

The HFC0310 is a flyback controller with fixedfrequency operation.The controller uses peak current mode to provide excellent transient response and ease loop compensation. When the output power falls below a given level, the controller enters burst mode to lower the stand-by powerconsumption.An external capacitor connected between the FSET pin and GND programs the HFC0310 switching frequency. Otherwise, the HFC0310 uses a frequency shaping function that greatly reduces the noise level, and reduces the cost of the EMI filter.The HFC0310 provides various protections, such as thermal shutdown, VCC under-voltage lockout, over-load protection, over-voltage protection, and short-circuit protection.The HFC0310 is available in a SOIC8 package.

Features

  • Programmable switching frequency up to 600kHz
  • Frequency shaping (±3.5%)
  • Current-mode operation
  • Very low start-up current (12μA)
  • Very low standby power consumption via active-burst mode
  • Internal 350ns leading-edge blanking
  • Built-in 3ms soft-start function
  • Internal slope compensation
  • Built-in PRO pin pull-up (>3.25V) autorestart function
  • Over-temperature protection
  • VCC under-voltage lockout with hysteresis
  • Over-voltage protection on VCC
  • Time-based over-load protection
  • Short-circuit protection

Typical applications

  • AC/DC Adapters, Switching Chargers
  • Power Meters
  • Switching Mode Power Supplies

More information

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7448640415
SPECWE-FC Common Mode Power Line Choke, 0.8 A, 13 mH
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-FC Common Mode Power Line Choke
Rated Current0.8 A
Inductance13 mH
DC Resistance0.81 Ω
Rated Voltage250 V (AC)
Insulation Test Voltage2000 V (AC)
MaterialMnZn 
Length21.3 mm
Width16.6 mm
Height22.5 mm
MountTHT 
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