Monolithic Power Systems (MPS) HFC0100 Quasi-Resonant Controller

Monolithic Power Systems (MPS) HFC0100 Quasi-Resonant Controller is a peak current-mode controller with green mode operation. It offers high efficiency across the entire line and load range and meets stringent worldwide energy efficiency requirements.

The HFC0100 is integrated with a high-voltage current source, and its valley detector ensures minimum drain-source voltage switching (quasi-resonant operation). The controller enters burst mode when the output power falls below a set level.

The HFC0100 features protection features, including thermal shutdown (TSD), VCC undervoltage lockout (UVLO), overload protection (OLP), and over-voltage protection (OVP). The Monolithic Power Systems (MPS) HFC0100 is available in a compact SOIC-8 package.

Features

Universal main input voltage (85VAC to 265VAC)
Quasi-resonant operation
Valley switching for high-efficiency and EMI minimization
Active burst mode for low standby power consumption
Internal high-voltage current source
A high level of integration decreases the required external component count
Maximum frequency limit

Internal soft-start
Internal 250ns leading-edge blanking
Thermal shutdown (auto-restart with hysteresis)
V_CC Under-Voltage Lockout with hysteresis (UVLO)
Over-voltage protection
Overload protection
Available in a SOIC-8 package

Applications

Battery chargers for cell phones, digital cameras, video cameras, electric shavers, emergency lighting systems
SMPS for inkjet printers, DVD players/recorders, VCRs, CD players, set-top boxes, air conditioners, refrigerators, washing machines, dishwashers, NB adapters

Standby power supplies for CRT TVs, projection TVs, LCD TVs, PDP TVs, desktop PCs, audio systems

Monolithic Power Systems (MPS) HFC0100 Quasi-Resonant Controller

Features

Applications

Functional Block Diagram

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