Monolithic Power Systems (MPS) MP44019 CrM/DCM Multi-Mode PFC Controllers

Monolithic Power Systems (MPS) MP44019 CrM/DCM Multi-Mode PFC Controllers offer simplified high-performance active power factor correction using minimal external components. The MP44019 provides a very low supply current, allowing low standby power loss below 50mW to be achieved.

The MPS MP44019 CrM/DCM Multi-Mode PFC Controllers use dead time extension technology under light loads to reduce the switching frequency. Lower total harmonic distortion (THD) is employed by utilizing variable on-time control in discontinuous conduction mode (DCM) when compared to conventional constant on-time (COT) control.

Multi-protection functions featured on the MP44019 include over-voltage protection (OVP), second OVP (OVP2), an over-current limit (OCL), over-current protection (OCP), under-voltage protection (UVP), brown-in (BI) and brownout (BO), VCC under-voltage lockout (UVLO), and over-temperature protection (OTP).

The MP44019 PFC Controllers are offered in a SOIC-8 package.

Features

Valley turn on for minimum switching loss
Frequency reduction to reduce switching loss under light-load conditions
Low supply current in burst mode
Soft-on/off burst for low audible noise
Mains compensation
Improved THD
Under-Voltage Protection (UVP)
Over-Current Limit (OCL)

Over-Current Protection (OCP)
Over-Voltage Protection (OVP)
Second Over-Voltage Protection (OVP2)
Brown-In (BI) and Brownout (BO)
Over-Temperature Protection (OTP)
Open/short pin protection
Soft start-up
Enhanced dynamic response
Available in a SOIC-8 package

Applications

LCD and OLED TVs
Desktop PCs and servers
High-power supplies for lighting

AC/DC Adapters, open-frame SMPSs
Video game consoles

Monolithic Power Systems (MPS) MP44019 CrM/DCM Multi-Mode PFC Controllers

Features

Applications

Typical Application

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