MP44019GS集成电路（IC）的PFC（功率因数校正）规格书PDF中文资料

DESCRIPTION

The MP44019 is a CrM/DCM multi-mode PFC controller that provides simple and highperformance active power factor correction using minimal external components.

The device features a very low supply current. This allows the device to achieve low standby power loss. The typical no load power loss is below 50mW.

The MP44019 reduces the switching frequency using dead time extension technology under light loads. This improves light-load efficiency.

The device achieves lower total harmonic distortion (THD) due to variable on time control in discontinuous conduction mode (DCM), when compared to conventional constant on time (COT) control.

Multi-protection functionality largely enhances the safety and reliability of the system. The MP44019 feature 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 is available in an 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 an 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